Maeda MC285CB-3 Operation Manual

serious injury. The operators and maintenance personnel must carefully read this manual and sufficiently understand its contents before operation / inspecting / maintaining the machine. Keep this manual at hand to read it over anytime.

Table of Contents 9/2020 MC285CB-3 i Table of Contents Section 1 INTRODUCTION INTRODUCTION ................................................................................................................. 1-2 Section 2 SAFETY SAFETY DEFINITIONS ....................................................................................................... 2-2 SAFETY PRECAUTIONS .................................................................................................... 2-2 SAFETY LABEL LOCATIONS ............................................................................................. 2-9 Machine Body ............................................................................................................ 2-9 Searcher Hook (Option) ........................................................................................... 2-21 Section 3 SPECIFICATIONS, TERMINOLOGY AND CAPACITY CHARTS MACHINE FEATURES ........................................................................................................ 3-2 Main Features ............................................................................................................ 3-2 Travelling Dolly ..................................................................................................... 3-2 Crane .................................................................................................................... 3-2 Safety Devices ...................................................................................................... 3-2 CRANE TERMINOLOGY .................................................................................................... 3-3 Terms and Definitions ................................................................................................ 3-3 PRINCIPLE SPECIFICATIONS LIST .................................................................................. 3-4 Machine Specifications .............................................................................................. 3-4 Radio Remote Control System Specifications ........................................................... 3-6 Searcher Hook Specifications ................................................................................... 3-7 DIMENSIONAL DRAWINGS ............................................................................................... 3-8 Machine Dimensional Drawing .................................................................................. 3-8 Searcher Hook Dimensional Drawing ........................................................................ 3-8 Outrigger Width Dimensional Drawing ...................................................................... 3-9 RATED TOTAL LOAD CHARTS ....................................................................................... 3-10 Programmable Moment Limiter ............................................................................... 3-10 Reading the Angle Indicator ............................................................................... 3-10 Boom Length ............................................................................................................ 3-11 Rated Total Load Chart for Standard Specification ................................................. 3-13 Rated Total Load Chart–4 Falls ............................................................................... 3-13 Rated Total Load Chart–2 Falls ............................................................................... 3-14 Rated Total Load Chart–Single Fall ........................................................................ 3-14 Rated Total Load Chart for Searcher Hook ............................................................. 3-15 Rated Total Load Chart for Searcher Hook-SH1..................................................... 3-16

Mini-Crawler Crane M A E D A ii 9/2020 MC285CB-3 Rated Total Load Chart for Searcher Hook-SH2..................................................... 3-17 Rated Total Load Chart for Searcher Hook-SH3..................................................... 3-18 WORKING RADIUS/LIFTING HEIGHT ............................................................................. 3-19 Standard................................................................................................................... 3-19 Working Radius/Lifting Height for Searcher Hook ................................................... 3-21 Section 4 OPERATION MACHINE COMPONENTS ................................................................................................. 4-2 BATTERY COMPONENTS ................................................................................................. 4-4 TRAVEL CONTROLS .......................................................................................................... 4-6 Control Location ......................................................................................................... 4-6 Switches ..................................................................................................................... 4-7 Motor Speed Adjuster Dial .................................................................................... 4-7 L. H. Travel Lever/Locking lever ........................................................................... 4-7 R. H. Travel Lever/Locking lever .......................................................................... 4-7 Starter Switch ........................................................................................................ 4-7 Emergency Stop Switch (EMO) ............................................................................ 4-8 Horn Switch ........................................................................................................... 4-8 13BWorking Light Switch ............................................................................................ 4-8 CRANE AND BOOM CONTROLS ...................................................................................... 4-9 Control Location ......................................................................................................... 4-9 Controls .................................................................................................................... 4-10 Slewing Lever ..................................................................................................... 4-10 Boom Telescoping Lever .................................................................................... 4-10 Winch Lever ........................................................................................................ 4-10 Boom Lift Lever ................................................................................................... 4-10 Emergency Stop Switch (EMO) .......................................................................... 4-10 Horn Switch ......................................................................................................... 4-10 MONITOR .......................................................................................................................... 4-11 16BStarting Screen ........................................................................................................ 4-11 17BHome Screen ........................................................................................................... 4-12 31B41BUser Mode ............................................................................................................... 4-17 56BWarning Display ....................................................................................................... 4-22 COLD WEATHER OPERATION ....................................................................................... 4-25 STARTING ......................................................................................................................... 4-26 Starting the Machine ................................................................................................ 4-26 WARM-UP ......................................................................................................................... 4-27 STOPPING ........................................................................................................................ 4-28 Normal Stopping ...................................................................................................... 4-28 Emergency Stopping ............................................................................................... 4-28 TRAVELLING POSITION .................................................................................................. 4-29 TRAVELLING CONTROLS AND OPERATION ................................................................ 4-29 Directional Controls ................................................................................................. 4-31

Table of Contents 9/2020 MC285CB-3 iii PARKING ........................................................................................................................... 4-33 OUTRIGGER SAFETY DEVICES ..................................................................................... 4-35 Safety Device Activation Warnings .......................................................................... 4-35 OUTRIGGER COMPONENTS .......................................................................................... 4-37 OUTRIGGER INDICATORS .............................................................................................. 4-38 Outrigger Mode ........................................................................................................ 4-41 OUTRIGGER SETTING .................................................................................................... 4-43 Support Plates ......................................................................................................... 4-43 Setting Outriggers (Normal Outrigger State) ........................................................... 4-44 Setting Outriggers (Multi Outrigger State) ............................................................... 4-47 OUTRIGGER SETTING MODES ...................................................................................... 4-48 "MAX" Outrigger Position ......................................................................................... 4-48 "Other than MAX" Outrigger Position ...................................................................... 4-49 Crane Operation Prohibited Zones Due to Outrigger Rotary Angle ........................ 4-50 Working Areas Based On Outrigger Posture .......................................................... 4-51 OUTRIGGER STOWING ................................................................................................... 4-53 Procedures after Starting the Machine .................................................................... 4-53 Procedures When Stopping the Machine ................................................................ 4-54 Operation in Emergencies ....................................................................................... 4-55 CRANE SAFETY DEVICES .............................................................................................. 4-56 Interlock Characteristics .......................................................................................... 4-57 Crane Operations..................................................................................................... 4-58 Crane Stowing Operations....................................................................................... 4-58 CRANE OPERATION ........................................................................................................ 4-59 Before Crane Operation ........................................................................................... 4-61 Crane Operation Position ........................................................................................ 4-62 Motor Speed Operation ........................................................................................... 4-62 Travelling operation unit (only when travelling) .................................................. 4-62 Monitor (Only During Crane/Outrigger Operation) ............................................. 4-63 Radio Remote Control (Only When Operating under Radio Remote Control) .. 4-63 Hook Raising / Lowering Operation ......................................................................... 4-63 Hook Raising / Lowering Procedure ................................................................... 4-64 Boom Lifting Operation ............................................................................................ 4-65 Safety Precautions .............................................................................................. 4-65 Boom Lifting / Lowering Procedure .................................................................... 4-65 Boom Telescoping Operation .................................................................................. 4-65 Safety Precautions .............................................................................................. 4-65 Boom Telescoping Procedure ............................................................................ 4-66 Slewing Operation.................................................................................................... 4-66 Safety Precautions .............................................................................................. 4-66 Slewing Procedure .............................................................................................. 4-67 Crane Stowing Operation ........................................................................................ 4-67 Safety Precautions .............................................................................................. 4-67 Stowing Procedure .............................................................................................. 4-68

Mini-Crawler Crane M A E D A iv 9/2020 MC285CB-3 MOMENT LIMITER (OVERLOAD DETECTOR) ............................................................... 4-69 Moment Limiter Features ......................................................................................... 4-69 Programmable Moment Limiter ............................................................................... 4-70 Moment Limiter Operation ....................................................................................... 4-71 Prohibited Actions after Auto-Stop .......................................................................... 4-74 Recovery Operation after Auto-Stop ....................................................................... 4-74 Moment Limiter Display ........................................................................................... 4-76 Over Winding Detector ............................................................................................ 4-80 Moment Limiter Working Envelope Setting ............................................................. 4-81 Setting or Cancelling the Upper Limit Value of Lifting Height ............................ 4-81 Setting or Cancelling the Boom Angle Upper Limit Value/Lower Limit Value .... 4-82 Setting or Cancelling the Upper Limit Value of the Working Radius .................. 4-82 Setting/Resetting Slewing Angle Limits .............................................................. 4-83 Moment Limiter Override Switch ............................................................................. 4-83 BATTERY HANDLING....................................................................................................... 4-84 Action When the Battery Is Drained ........................................................................ 4-86 Battery Charging ...................................................................................................... 4-87 Monitor Display When Charging ......................................................................... 4-87 User Mode Switch ............................................................................................... 4-87 Rotary Lamp ON/OFF Selection ......................................................................... 4-87 Charging Method ................................................................................................ 4-88 RADIO REMOTE CONTROL SYSTEM INTRODUCTION ............................................... 4-89 General .................................................................................................................... 4-89 Operation Precautions ............................................................................................. 4-92 RADIO REMOTE CONTROL SYSTEM FEATURES ........................................................ 4-94 Transmitter ............................................................................................................... 4-94 Receiver ................................................................................................................... 4-94 Transmitter Accessories .......................................................................................... 4-94 Functions of Radio Remote Control System ........................................................... 4-94 RADIO REMOTE CONTROL SYSTEM COMPONENTS ................................................. 4-95 Transmitter Components ......................................................................................... 4-95 Transmitter Display Components ............................................................................ 4-98 Status Indications of Display.................................................................................. 4-101 Receiver Components ........................................................................................... 4-102 RADIO REMOTE CONTROL SYSTEM VERIFICATIONS ............................................. 4-104 Before Turning On Transmitter .............................................................................. 4-104 After Turning On Transmitter ................................................................................. 4-104 After Starting Machine ........................................................................................... 4-104 RADIO REMOTE CONTROL SYSTEM OPERATION .................................................... 4-107 Powering ON .......................................................................................................... 4-108 Starting/Stopping the Machine .............................................................................. 4-108 Starting the Machine ......................................................................................... 4-108 Stopping the Machine ....................................................................................... 4-108 Operation after Machine Is Started ........................................................................ 4-108 Operation before Work...................................................................................... 4-108 Switching Operation Mode ................................................................................ 4-108

Table of Contents 9/2020 MC285CB-3 v Outrigger Operation ............................................................................................... 4-109 Outrigger Setting ............................................................................................... 4-110 Outrigger Stowage ............................................................................................ 4-111 Crane Operation .................................................................................................... 4-112 Hook Raising/Lowering Operation .................................................................... 4-112 Boom Lifting/Lowering Operation ..................................................................... 4-113 Boom Telescoping Operation ........................................................................... 4-113 Slewing Operation ............................................................................................. 4-114 Micro Speed Mode Switch Operation ............................................................... 4-114 Emergency Stop Switch (EMO) Operation ....................................................... 4-114 Horn Switch Operation ........................................................................................... 4-115 Boom Lift Bypass Switch Operations .................................................................... 4-115 LED Light Operations ............................................................................................ 4-116 AFTER CRANE OPERATION ......................................................................................... 4-116 Crane Stowing Operation ...................................................................................... 4-116 Stopping Operation by Radio Remote Control System ......................................... 4-116 Inspection after Ending Remote Control System Operation ................................. 4-117 HANDLING TRANSMITTER BATTERY .......................................................................... 4-117 Replacement Timing of Battery ............................................................................. 4-117 Replacement Method of Battery ............................................................................ 4-117 Charging Method of Battery ................................................................................... 4-118 SEARCHER HOOK SAFETY PRECAUTIONS ............................................................... 4-120 Moment Limiter Settings ........................................................................................ 4-120 Searcher hook position settings........................................................................ 4-120 SEARCHER HOOK COMPONENTS (OPTION) ............................................................. 4-121 SEARCHER HOOK MONITOR ....................................................................................... 4-122 Home Screen ......................................................................................................... 4-122 User Mode ............................................................................................................. 4-123 SEARCHER HOOK OPERATION ................................................................................... 4-124 TRAILERING ................................................................................................................... 4-127 Ramp Planks .......................................................................................................... 4-128 Loading / Unloading Procedure ............................................................................. 4-128 HOISTING ........................................................................................................................ 4-129 Recommended Hoisting Attachments ................................................................... 4-129 Hoisting Procedure ................................................................................................ 4-129 Section 5 MAINTENANCE AND INSPECTION GENERAL MAINTENANCE INFORMATION AND PRECAUTIONS .................................. 5-2 MACHINE BREAK-IN .......................................................................................................... 5-5 LEGAL INSPECTION .......................................................................................................... 5-6 CONSUMABLES ................................................................................................................. 5-6 LUBRICATING OIL .............................................................................................................. 5-7

Mini-Crawler Crane M A E D A vi 9/2020 MC285CB-3 SPECIAL TOOLS AND STANDARD TIGHTENING TORQUE ........................................... 5-8 Accessory Tools ......................................................................................................... 5-8 Standard Tightening Torque List ............................................................................... 5-8 Bolt and Nut Tightening Torque ............................................................................ 5-8 Hose Connector Tightening Torque ................................................................... 5-10 MACHINERY COVER ....................................................................................................... 5-11 Removing Machinery Cover ............................................................................... 5-11 Installing Machinery Cover ................................................................................. 5-11 FUSES ............................................................................................................................... 5-12 INSPECTION ..................................................................................................................... 5-13 Pre-Start and Post-Start Inspection Items ............................................................... 5-13 Pre-Start Visible Checks .......................................................................................... 5-14 Pre-Start Inspection ................................................................................................. 5-16 Post-Start Inspection ............................................................................................... 5-18 PERIODIC MAINTENANCE .............................................................................................. 5-24 Periodic Maintenance Schedule .............................................................................. 5-24 Periodic Maintenance Procedures ........................................................................... 5-25 GENERAL MACHINE MAINTENANCE ............................................................................ 5-35 Rubber Tracks ......................................................................................................... 5-35 Wire Rope ................................................................................................................ 5-41 Wire Rope - Boom Telescope Extension ................................................................ 5-46 Air Breather Inspection ............................................................................................ 5-49 Drain Water and Sediment Inside Hydraulic Oil Tank ............................................. 5-51 STORAGE ......................................................................................................................... 5-52 Temporary Storage .................................................................................................. 5-52 Long-Term Storage .................................................................................................. 5-52 Before Storage .................................................................................................... 5-52 During Storage .................................................................................................... 5-52 After Storage ....................................................................................................... 5-52 COLD TEMPERATURE PREPARATION ......................................................................... 5-53 Oil ............................................................................................................................. 5-53 Battery ...................................................................................................................... 5-53 After Daily Operation ............................................................................................... 5-53 SEARCHER HOOK INSPECTION AND MAINTENANCE ................................................ 5-54 Legal Inspection ....................................................................................................... 5-54 Consumables ........................................................................................................... 5-54 Inspection and Maintenance List ............................................................................. 5-55 Pre-Start and Post-Start Inspection Items .......................................................... 5-55 Pre-Start – Before Starting Machine ........................................................................ 5-56 E-Boom, Frame and Hook .................................................................................. 5-56 Greasing .............................................................................................................. 5-56 Searcher Hook Fix Bolts ..................................................................................... 5-56 Position Pin and Lynch Pin ................................................................................. 5-56 Pre-Start – After Starting Machine ........................................................................... 5-57 Moment Limiter for Operation (Searcher Hook Mode) ....................................... 5-57

Table of Contents 9/2020 MC285CB-3 vii TROUBLESHOOTING....................................................................................................... 5-58 Machine Body .......................................................................................................... 5-58 Electrical Components ............................................................................................. 5-59 Battery ...................................................................................................................... 5-59 Electric Motor ........................................................................................................... 5-60 Radio Remote Control System ................................................................................ 5-61 Error Codes .............................................................................................................. 5-62 Slewing Position Calibration .................................................................................... 5-63

Mini-Crawler Crane M A E D A viii 9/2020 MC285CB-3 This Page Intentionally Left Blank

Mini-Crawler Crane M A E D A 1-2 9/2020 MC285CB-3 INTRODUCTION Thank you for purchasing the Maeda Mini Crawler Crane model MC285CB-3. This manual is intended as a guide for the safe and effective use of this machine. This manual describes the procedures for proper operation and maintenance of the machine. This manual is available in other languages. If a different language manual is necessary, contact your local Maeda distributor for availability. Save this manual in a designated safe place for future reference. Should this manual be lost or damaged, contact Maeda or a Maeda sales service agency immediately to order a new manual. This manual should remain with this machine upon transfer of the machine to a new owner. This manual contains information that was available at the time of print. The contents of this manual, including maintenance specifications, tightening torques, pressure, measuring methods, adjustment values and illustrations, are subject to change upon refinement of the machine, without notice. Machine maintenance procedures may be updated by Maeda at any time. Always obtain the latest information from Maeda or a Maeda sales service agency before performing maintenance on this machine. Installation and operation of this machine must comply with all laws and regulations where operated. Only personnel who have obtained a licence stipulated by the laws and regulations from the place of use are qualified to operate this machine, establish the power connection of the power supply equipment, and inspect and repair the electric system. Disclaimers: All information, illustrations and specifications in this manual are based on the latest information available at the time of publishing. The illustrations used in this manual are intended as representative reference views only. Moreover, because of our continuous product improvement policy, we may modify information, illustrations and/or specifications to explain and/or exemplify a product, service or maintenance improvement. We reserve the right to make any change at any time without notice. Maeda is a registered trademark of Maeda Seisakusho Co., Ltd. in Japan, the United States and/or other countries. All Rights Reserved: No part of this publication may be reproduced or used in any form by any means - graphic, electronic or mechanical, including photocopying, recording, taping, or information storage and retrieval systems - without the written permission of Maeda Seisakusho Co., Ltd. © 2020 Maeda Seisakusho Co., Ltd. 9/2020

Mini-Crawler Crane M A E D A 2-2 9/2020 MC285CB-3 SAFETY DEFINITIONS Maeda is concerned for your safety and the condition of your mini-crawler crane. Safety statements are one of the primary ways to call your attention to the potential hazards associated with Maeda mini-crawler cranes. Follow the precautions listed throughout the manual before operation, during operation and during periodic maintenance procedures for your safety, the safety of others and to protect the performance of your mini-crawler crane. Keep the labels from becoming dirty or torn and replace them if they are lost or damaged. Also, if a part needs to be replaced that has a label attached to it, make sure to order the new part and label at the same time. This safety alert symbol appears with most safety statements. It means attention, become alert, your safety is involved! Please read and abide by the message that follows the safety alert symbol. Indicates a hazardous situation which, if not avoided, will result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. Indicates a situation which can cause damage to the mini-crawler crane, personal property and/or the environment, or cause the equipment to operate improperly. SAFETY PRECAUTIONS There is no substitute for common sense and careful practices. Improper practices or carelessness can cause burns, cuts, mutilation, asphyxiation, other bodily injury or death. This information contains general safety precautions and guidelines that must be followed to reduce risk to personal safety. Special safety precautions are listed in specific procedures. Read and understand all of the safety precautions before operating or performing repairs or maintenance. This safety section cannot cover every situation that may occur that is incidental to the use of the machine. Use common sense if you encounter a situation that is not covered to help avoid a hazardous situation. The safety messages that follow have CAUTION level hazards. Pre-Operation Hazard ・Never permit anyone to install or operate the machine without proper training. ・Read and understand this Operation Manual before operating or servicing the crane to ensure that safe operating practices and maintenance procedures are followed. ・Safety signs and labels are additional reminders for safe operating and maintenance techniques. ・Contact us or our sales service agency for additional training. ・Make sure you are aware of licences, laws and regulations that may be required or in effect where the machine is operated. NOTICE

Section 2 – SAFETY PRECAUTIONS 9/2020 MC285CB-3 2-3 The safety messages that follow have DANGER level hazards. Electrocution Hazard Contact with, or proximity to, an electrically charged power line will result in death or serious injury: ・This unit will not provide protection from contact with, or proximity to, an electrically charged power line when the components at the boom tip are in contact with, or in proximity to, another power line, ground or pole. ・All metal and fiberglass components at the boom tip may become energised. ・Operators must follow safe electrical work practices in accordance with their employers’ work rules and applicable government regulations including: ・Maintain minimum approach distances from electrical power lines. ・Allow for boom, electric line and load sway. ・If any part of the unit is elevated within the minimum approach distance of an energised conductor, all unauthorised personnel must KEEP CLEAR. ・There is a risk of electric shock if the battery unit is handled incorrectly. The safety messages that follow have WARNING level hazards. Tip / Boom Failure Hazard Overloading the crane may cause it to tip over or the boom to fail: ・Before you try to hoist a load, it is essential that you know: ・Boom angle (use boom angle indicator) ・Working radius (use operating range chart) ・Boom length (use rated total load chart) ・Rated total load (use rated total load chart) ・Never try to hoist a load that exceeds the rated total load. Rated total load is the mass of the load plus weight of the winch lines and the weight of the hook block. ・Always calculate the total load using the rated total load chart before you attempt to hoist the load. Never rely on the moment limiter as the primary means to determine whether a load is safe to lift. ・All the values provided on the rated total load chart assume that the machine is located on a level and firm surface. Always use outrigger pads when you deploy the outriggers on soft or unpaved surfaces. ・The values shown in the operating range chart do not account for boom deflection when the load is raised. Boom deflection will widen the working radius. Use the next largest radius on the operating range chart to account for this. ・Always extend outriggers before lifting load. If the terrain is not completely level and you must adjust the outrigger position to compensate, you must derate the rated total load by the amount indicated for outriggers other than maximum in "RATED TOTAL LOAD CHARTS" on page 3-13. All outrigger monitor lights, other than the Boom Stowing Light, must be on. ・Always look at the level gauge when setting the outriggers. Look at the level gauge when making adjustments during operation. Always keep the machine body level when operating. ・Sudden or jerky movement of the travel, crane or outrigger controls can cause the machine to tip over. Always operate these controls smoothly.

Mini-Crawler Crane M A E D A 2-4 9/2020 MC285CB-3 The safety messages that follow have WARNING level hazards. Crush Hazard ・Keep bystanders away from work area before and during operation. ・Keep all body parts clear of machine components during operation, especially between the boom/post and the boom cylinder, the winch drum and the winch line, the sheaves and the winch line, and between the tracks and the ground. ・Never commence work unless you have clear view of the jobsite or you have a helper to guide you. ・Always lower the load fully to the ground before you leave the operator’s position. Rigging Hazard ・Pay attention to the distance between the hook block and the boom when you raise the hook block or when you extend the boom (as the boom extends, the hook block automatically raises). If the hook block strikes the boom, it could cause the load to fall. ・Never overload the winch line. ・When you are lowering the hook block, make sure there are more than three turns of winch line left on the winch drum when the hook block reaches the final working height. ・Before you hoist the load, make sure the hook block is securely attached to the winch line. ・Make sure the winch line is perpendicular to the ground as you hoist a load to avoid tipping the machine over. ・When you are hoisting a load off the ground, stop hoisting the load momentarily as the load clears the ground to make sure the load is stable. ・Never hoist more than one load at a time. ・When you hoist a long load, such as pipes, clamp the load vertically or secure it at both ends. Slewing Hazard ・Never slew a load over anyone. ・Always slew the load as smoothly and slowly as possible. Any sudden movement could cause the load to sway and the machine to tip over. ・Keep away from other cranes working in the area to avoid accidental contact. ・Never slew the load over the operator. Wind Speed Hazard ・If the maximum instantaneous wind speed is 19 to 24 mph (8.5 to 10.7 m/s) or greater, abort the job you are performing and immediately lower the load and secure the boom. This wind speed is called a “fresh wind” on the Beaufort Scale. At that speed, small trees in leaf sway slightly and wavelets form on ponds and lakes. ・Even if the maximum instantaneous wind speed is below 19 to 24 mph (8.5 to 10.7 m/s), be aware that loads with more mass, loads that are hoisted high off the ground and booms that are extended all magnify the effect of the wind on the machine. Stay aware of changing weather conditions. ・If a load is hoisted that has a large surface area, such as a metal plate, the wind can cause the load to sway and subsequently cause the machine to tip over. High Hydraulic Oil temperature If the hydraulic oil temperature exceeds 90°C, the electric motor will stop. If hydraulic oil temperature exceeds 90°C hydraulic hoses and seals can be damaged and leak. The leaking hydraulic oil can cause burns. Continuous hook raising and lowering at high speeds and high lifting heights can cause the hydraulic oil to heat up faster. If hydraulic oil temperature exceeds 90°C stop crane operation and allow the hydraulic oil to cool.

Section 2 – SAFETY PRECAUTIONS 9/2020 MC285CB-3 2-5 The safety messages that follow have WARNING level hazards. Communications Hazard ・Always work with a partner that is on the ground. The partner must keep aware of any hazards in the work area and communicate them to the machine operator. ・Both the machine operator and the partner must decide before work begins on the hand signals that they will use during the job. ・If hand signals are not used, proper radio communications must be set up and tested before the job begins. Fall Hazard ・Never carry riders on the machine. ・Always use the hand grabs and slip-resistant surfaces when entering or exiting the machine. ・Always maintain three-point contact when entering or exiting the machine. ・Never jump off the machine. Modification Hazard Never modify the machine without written consent of the manufacturer. Any modification can affect the safe operation of the machine. Exposure Hazard Always wear personal protective equipment, including appropriate clothing, gloves, work shoes, and eye and hearing protection, as required by the task at hand. Explosion Hazard ・While the battery is charging, hydrogen gas is being produced and can be easily ignited. Keep the area around the battery well-ventilated and keep sparks, open flame and any other form of ignition out of the area. ・Always disconnect the negative (-) battery cable before servicing the equipment. Fire Hazard ・Have appropriate safety equipment available. Have all fire extinguishers checked periodically for proper operation and/or readiness. ・Always read and follow safety-related precautions found on containers of hazardous substances like parts cleaners, primers, sealants and sealant removers. ・Undersized wiring systems can cause an electrical fire.

Mini-Crawler Crane M A E D A 2-6 9/2020 MC285CB-3 The safety messages that follow have WARNING level hazards. Asbestos Dust Hazard ・Inhalation of air containing asbestos dust may result in lung cancer. ・Make sure you use the appropriate personal protection equipment if you suspect that the worksite may contain asbestos. ・Properly prepare the worksite to prevent asbestos dust from being released into the surrounding environment. Entanglement / Sever Hazard ・Verify there are no people, obstacles or other equipment near the machine before starting the machine. Sound the horn as a warning before starting the machine. ・Always stop the machine before beginning service. ・If the machine must be serviced while it is operating, remove all jewelry, tie back long hair and keep hands, other body parts and clothing away from moving/rotating parts. ・Verify that all machine guards and covers are attached properly to the machine before starting the machine. Do not start the machine if any guards or covers are not properly installed on the machine. ・Always turn the Starter Switch to the OFF position after operation is complete and remove the key from the switch. Keep the key in your possession when the machine is not operating. ・Attach a “Do Not Operate” tag near the Key Switch while performing maintenance on the equipment. ・Never operate the machine while wearing a headset to listen to music or radio because it will be difficult to hear the warning signals. Alcohol and Drug Hazard Never operate the machine while under the influence of alcohol or drugs, or when ill. Piercing Hazard ・Avoid skin contact with high-pressure hydraulic fluid caused by a hydraulic leak such as a broken hydraulic hose line. High-pressure hydraulic fluid can penetrate your skin and result in serious injury. If you are exposed to high-pressure hydraulic fluid obtain prompt medical treatment. ・Never check for a hydraulic fluid or fuel leak with your hands. Always use a piece of wood or cardboard. Have your authorised Maeda dealer or distributor repair the damage. Flying Object Hazard Always wear eye protection when cleaning the machine with compressed air. Dust, flying debris, compressed air, pressurised water or steam may injure your eyes.

Section 2 – SAFETY PRECAUTIONS 9/2020 MC285CB-3 2-7 The safety messages that follow have WARNING level hazards. Burn Hazard ・Items such as the motor, motor controller, and oil will be hot immediately after shutting down the machine. There is a risk of burn injuries if maintenance is carried out in this state. ・Keep hands and other body parts away. ・Handle hot components with heat-resistant gloves. Working Under Machine Hazard ・Park the machine on a flat, firm and level surface. ・Fully retract and lower the boom. ・Extend all outriggers to the maximum position so the tracks clear the ground. ・Place jack stands of sufficient strength in strategic locations under the machine to help support it during maintenance. Working Above Machine Hazard ・Always maintain three-point contact as you climb on or off an elevated work surface. ・Do not jump from the elevated work surface. ・Do not climb on the boom, outrigger or other machine surface. ・Where necessary, wear protective equipment and a safety harness. The safety messages that follow have CAUTION level hazards. Poor Lighting Hazard Ensure that the work area is adequately illuminated. Always install wire cages on portable safety lights. Tool Hazard Always use tools appropriate for the task at hand and use the correct size tool for loosening or tightening machine parts. Slip Hazard ・Immediately clean up any spilled liquid on the shop floor. ・Clean up accumulated dirt and debris on the shop floor at the end of each shift. Communications Hazard ・Follow the policies and instructions established by your employer and authorities having jurisdiction. The policies have been developed to protect you and your co-workers from needless personal injury. ・Post signs to alert people that are not authorised to be in the shop that they must stay out of the work area. ・If you must run the machine during maintenance procedures, make sure you have a helper to keep bystanders clear of the machine and make observations of moving parts as requested by the operator.

Mini-Crawler Crane M A E D A 2-8 9/2020 MC285CB-3 The safety messages that follow have NOTICE level hazards. Any part which is found defective as a result of inspection or any part whose measured value does not satisfy the standard or limit must be replaced. Always tighten components to the specified torque. Loose parts can cause equipment damage or cause it to operate improperly. Only use replacement parts specified. Other replacement parts may affect warranty coverage. Follow the guidelines of the governmental agencies for the proper disposal of hazardous materials such as oil. Consult the local authorities or reclamation facility. Clean all accumulated dirt and debris away from the body of the machine and its components before you inspect the machine or perform preventive maintenance procedures or repairs. Operating a machine with accumulated dirt and debris will cause premature wear of machine components. Accumulated dirt and debris also hinders effective machine inspection. Retrieve any tools or parts that may have dropped inside of the machine to avoid improper machine operation. Never dispose of hazardous materials by dumping them into a sewer, on the ground, or into groundwater or waterways. If any alert indicator illuminates during machine operation, stop the machine immediately. Determine the cause and repair the problem before continuing to operate the machine. Check the following specifications and items before using this machine: ・Maintenance inspection records for completion of periodic inspections and service ・Crane capacity ・Crane maintenance condition ・Problems or failures unique to the crane ・Operating condition of the brakes, clutch and other operating controls ・Condition and operation of lighting, including rotating lights ・Condition and operation of hook, winches, boom, outriggers and related components NOTICE

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-9 SAFETY LABEL LOCATIONS Machine Body Fig. 2-1

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-11 [5] 102-4748700 (2 places) [6] 102-4784300 [7] 553-4267400 (2 places) [8] 102-3324500 [9] 350-4539700 (4 places) [10] 103-4592500

Mini-Crawler Crane M A E D A 2-12 9/2020 MC285CB-3 [15] 350-4432100 [16] 553-4268000

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-13 [17] 102-2223200

Mini-Crawler Crane M A E D A 2-14 9/2020 MC285CB-3 [18] 349-4427100 [19] 102-4785100 [20] 353-4488700 (3 places) [21] 893-4239100 [22] CL000200010 (2 places)

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-15 [23] 553-4267300 (2 places) [24] 102-4791800 [25] 353-4488400 [26] 353-3235200 [29] 349-4422000 [30] 553-4267500 (2 places)

Mini-Crawler Crane M A E D A 2-16 9/2020 MC285CB-3 [32] 102-4792200 [33] 353-4488600 [39] 101-4593300 (4 places) [40] 553-4267700 (3 places)

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-17 [42] 102-2223300

Mini-Crawler Crane M A E D A 2-18 9/2020 MC285CB-3 [45] 553-4267600 [46] 349-4427200 [47] 103-4604800 [48] 102-4619800 [50] 584-4581700 (2 places)

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-19 [51] 102-3441100 [53] 102-4749400 [55] 102-4750600

Mini-Crawler Crane M A E D A 2-20 9/2020 MC285CB-3 [58] 102-4788200 [59] 102-4788400 [62] 102-4792300 (3 places)

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-21 Searcher Hook (Option) Fig. 2-3

Mini-Crawler Crane M A E D A 2-22 9/2020 MC285CB-3 [1] 102-4621200 (2 places) [2] 102-3340000 [4] 102-4620300 (2 places) [5] 102-4608500 (2 places)

Section 2 – SAFETY LABEL LOCATIONS 9/2020 MC285CB-3 2-23 [10] 102-2224000

Mini-Crawler Crane M A E D A 2-24 9/2020 MC285CB-3 This Page Intentionally Left Blank

Mini-Crawler Crane M A E D A 3-2 9/2020 MC285CB-3 MACHINE FEATURES This machine is only to be used for crane operation. This machine is a mobile crane with a rubber track travelling dolly (carrier) mounted with a boom crane. This self-propelled crane is capable of moving (travelling) on a worksite and craning an object weighing within the rated total load capacity. This crane can be operated with a radio remote control system. Main Features Viewed from the travel lever, the front, back, left and right of the machine are illustrated in this manual from the front of the machine. Boom slewing motion is determined with the machine viewed from directly above; slew clockwise (right) denotes right-handed motion and slew counterclockwise (left) denotes left-handed motion. The main components of this machine are the travelling dolly and crane. Travelling Dolly The travelling dolly is composed of a travelling gear, battery unit, travelling operation unit and crane operation unit. This machine is compact in design in order to keep the overall width between the crane and outrigger minimised while housed (in travelling position). This compact design is ideal for work in confined areas. Two-travel lever operation enables direction changes forward, backward and right/left, and also pivot and spin turns. A battery is provided to allow operation without exhaust gas emissions. Crane The crane is composed of a telescoping system, boom system, hook block, winch system and outrigger system. Through the combined use of telescoping, boom slewing and winch operation, the crane is capable of raising or lowering the hook block and moving an object weighing within the rated total load capacity to a designated position within the confines of the working area. A radio remote control system allows remote crane operation. Safety Devices The following safety devices are used on this machine: • Over winding detector • Rope over unwinding detector • Automatic stop device • Angle indicator • Hydraulic safety valve • Hydraulic automatic locking device • Latch • Alarm buzzer • Level gauge • Crane tip-over alarm (an alarm issued in the event of crane operation at 3-degree inclination and travelling at 15-degree inclination) • Outrigger safety device (outrigger interlock and crane interlock) • Working envelope limited • Working Status Lamp

Section 3 –CRANE TERMINOLOGY 9/2020 MC285CB-3 3-3 CRANE TERMINOLOGY Terms and Definitions Rated Total Load The maximum load that can be applied according to the boom length and angle. The load includes the mass (weight) of hoisting accessories (hooks) and slinging ropes. For additional information, see "RATED TOTAL LOAD CHARTS" on page 3-10. Fig 3-1 Rated Load A load derived by subtracting the mass (weight) of hoisting accessories (hooks) and slinging ropes from the rated total load. Working Radius A horizontal distance between the axis of slewing and the hook centre. Fig 3-2 Boom Length A distance between the boom primary pin and the sheave pin of the end boom. Fig 3-3 Boom Angle An angle which the boom forms with the horizon. Fig 3-4 Lifting Height above Ground A vertical distance between the hook bottom and the ground with the hook raised to the upper limit. Fig 3-5

Mini-Crawler Crane M A E D A 3-4 9/2020 MC285CB-3 PRINCIPLE SPECIFICATIONS LIST Machine Specifications System / Item MC285CB-3 Mass and Dimensions Machine mass 1995 kg Stowed length  width  height 2800 x 750 x 1470 mm Distance between idler and sprocket 975 mm Track gauge 550 mm Track width 200 mm Capacity Max. rated total load working radius 2.82 t x 1.4 m Max. working radius 8.2 m x 0.15 t Max. lifting height (above ground) 8.70 m Max. lifting height (underground) -10.1 m (4 falls) Winch System Type Hydraulic motor driven with brake, differential planetary gear type, with counter balance valve Winding speed 9.3 m/min (4 layers, 4 falls) Hoisting rope IWRC 6 x Fi (29) 7 mm x 48 m Boom Telescoping System Type Two sequential hydraulic cylinders with two wire rope telescoping systems Boom type Fully automatic 5-section pentagonal telescopic Boom length 2.535 m – 8.575 m Boom telescoping stroke/time 6.04 m/22 sec Boom System Type Two hydraulic double acting, direct acting cylinders Boom angle/time 0 to 80 degrees/14.0sec Slewing System Type Slew bearing supported with hydraulic motor driven worm and spur gears with a self-locking worm brake Slewing angle/speed 360 degrees (continuous)/68 sec (0.9 RPM) Outrigger System Type First stage with flexible gas charged stay damper, second stage manual pullout, direct acting hydraulic cylinder Overall width of extended outriggers (Lateral) 4782 mm x (Front) 4718 mm x (Rear) 3990 mm Travelling System Type Hydraulic motor driven, stepless speed changer, variable speed Travel speed Forward/backward: 0 – 2.0 km/h Gradeability 20 degrees Ground pressure 51.0 kPa

Section 3 –PRINCIPLE SPECIFICATIONS LIST 9/2020 MC285CB-3 3-5 System / Item MC285CB-3 Hydraulic System Hydraulic pump Double-throw variable piston pump (6 cc/rev x 2) Rated pressure 20.6 MPa Hydraulic oil tank capacity 20 L Battery Type Lithium ion Capacity DC 55 V – 135 Ah Input voltage/current Single-phase 100 V/15 A, 200 V/16 A Charging time 100 V AC: 5 hrs 18 mins to 80%, 7 hrs to 100% 200 V AC: 2 hrs 20 mins to 80%, 3 hrs 30 mins to 100% Operating time (with full charge) Continuous high-speed travel: 2 hrs 12 mins Weight 92.4 kg (15.4 kg × 6) Operating elevation Up to 2,000 m Electric motor Output 7.5 kW AC 30 V/2500 min-1 Safety Device Over winding detector, over-unwinding stop device, angle indicator, hydraulic safety valve, wire rope latch, level, machine body inclination alarm, EMO Switch, crane outrigger interlock device, moment limiter, outrigger setting light, working status lamp Options Black rubber tracks, Single fall hook, Searcher hook Classification Mobile crane ISO4301/2 Group A1 For optimum operation and storage of this machine follow the requirements listed below: • Operating temperature: -20°C to 40°C (no frost) • Storage temperature: -20°C to 55°C • Operating humidity: Max. 85% RH (no condensation) • Atmosphere: Outdoor environment free from explosive, flammable and corrosive gases, moisture and excessive dust particles For details on storage, see “STORAGE” on page 5-52.

Mini-Crawler Crane M A E D A 3-6 9/2020 MC285CB-3 Radio Remote Control System Specifications System / Item Radio remote control Radio frequency 2402-2480 MHz band Transmission output 100 mW Channel spacing 1 MHz Reachable range of radio waves 100 m or longer (under a good condition where there is no radio interference) Unique address Extracted and set from 1 million or more addresses at the time of shipment from factory Waterproof IP65 Transmitter antenna Built-in type Operating status display Status LED Battery status display No reception display Monitor LED Receiver power status display Transmitter power status display Feedback Telegram display Safety device Emergency stop switch (EMO) Misoperation avoidance function during interruption of radio remote control Automatic power OFF device (Auto power off device) Transmitter stop function when battery capacity decreases Alarm switch Transmitter voltage Battery BA405000 (6 VDC at 1500 mAh) Receiver voltage Power of crane main body (12 VDC) Continuous operating hours of Transmitter Approximately 20 hours (Changes depending on usage environment) Ambient operating temperature -20°C to +70°C Transmitter mass Approx. 1.8 kg (including battery) Operation items of Transmitter Operation lever Outrigger 4 GROUND/STOWAGE / Boom LOWER Outrigger 3 GROUND/STOWAGE / Hook RAISE/LOWER Outrigger 2 GROUND/STOWAGE / Boom EXTEND/RETRACT Outrigger 1 GROUND/STOWAGE / Slew Operation switch Transmitter power switch Micro speed switch Boom raising cancel switch Horn switch Emergency stop (EMO)/Transmitter power OFF switch Rotary switch Operation mode selector switch Dial switch Display operation switch

Section 3 –PRINCIPLE SPECIFICATIONS LIST 9/2020 MC285CB-3 3-7 Searcher Hook Specifications System / Item MC285CB-3 Mass and dimensions Machine mass 2017 kg Stowed length × width × height 3000 × 750 × 1470 mm Performance Crane capacity 850 kg Maximum working radius 9.7 m Maximum lifting height above ground 8.9 m Only the searcher hook dedicated values are given here.

Mini-Crawler Crane M A E D A 3-8 9/2020 MC285CB-3 DIMENSIONAL DRAWINGS Machine Dimensional Drawing Fig 3-6 Searcher Hook Dimensional Drawing Fig 3-7

Section 3 –DIMENSIONAL DRAWINGS 9/2020 MC285CB-3 3-9 Outrigger Width Dimensional Drawing Fig 3-8

Mini-Crawler Crane M A E D A 3-10 9/2020 MC285CB-3 RATED TOTAL LOAD CHARTS WARNING! Tip Hazard. Never exceed the maximum load limit per working radius stated in the Rated Total Load Charts. Always operate the crane and boom within these limits. The Rated Total Load Charts indicate the maximum loads the crane is capable of hoisting in parallel with the length of the boom. The loads are specified by working radius. All the values provided in the Rated Total Load Charts are based on the assumption that the machine is placed on a level, solid surface. The values in the Rated Total Load Charts are determined based on the working radius, allowing for deflection that is developed when load is applied to the boom. The Rated Total Load Charts are the same in all directions regardless of the slewing stop position. When extending boom no. 3 even slightly, crane operation should proceed to the extent of performance of boom configuration range 4.080-5.575 m. When half of the first “ mark” passes boom no. 3, crane operation should proceed to the extent of performance of boom configuration range 5.580-7.075 m. When half of the second “ mark” passes boom no. 3, crane operation should proceed to the extent of performance of boom configuration range 7.080-8.575 m. If the working radius exceeds that stated in the table even slightly, crane operation should proceed with respect to the rated total load corresponding to the working radius. The rated total load includes the mass of the hoisting accessory (rigging and hook block). When the crane is used with the outriggers extended other than at maximum extension, crane operation should proceed with respect to the values specified in the Rated Total Load Chart corresponding to “When the crane is used with the outriggers extended at the other than maximum.” Programmable Moment Limiter WARNING! Tip Hazard. The following precautions should always be observed when reading the “rated total load” provided by the programmable moment limiter. • The outriggers should be placed on a level and firm surface. • The outriggers should be at maximum extension as much as possible. • The weight of an object, including that of a hoisting accessory and slinging rope, must remain below the rated total load for hoisting objects. With the boom length (number of stages) and angle specified, make a comparison between the rated total load provided by the programmable moment limiter and the weight of the object. The programmable moment limiter provides readouts on the rated total load under the following conditions: • The outriggers are placed on a level and firm surface. • No deflection is developed in the boom. Reading the Angle Indicator The intersection point of the pointer that is attached to the, and the label on the boom, is the current boom angle. The boom angle shown in the figure below is 35°. Fig. 3-9

Section 3 –RATED TOTAL LOAD CHARTS 9/2020 MC285CB-3 3-11 Boom Length The following figures illustrate the condition of the booms in "RATED TOTAL LOAD CHARTS" on page 3-10: 2.535 m Boom, 2.540-4.075 m Boom, 4.080-5.575 m Boom, 5.580-7.075 m Boom, 7.080-8.575 m Boom 1) 2.535 m Boom: All the booms are retracted. Fig. 3-10 2) 2.540-4.075 m Boom: When boom ② begins to extend until boom ② is fully extended with booms ③ + ④ + ⑤ fully retracted. Fig. 3-11 3) 4.080-5.575 m Boom: With boom ② fully extended, and when boom ③ begins to extend, until boom ③ is extended until the first mark on boom ③ is visible at the end of boom ②. Fig. 3-12

Mini-Crawler Crane M A E D A 3-12 9/2020 MC285CB-3 4) 5.580-7.075 m Boom: When boom ③ begins to extend past the first mark until the boom extends until the second mark is visible at the end of boom ②. Fig. 3-13 5) 7.080-8.575 m Boom: When boom ③ begins to extend past the second mark until booms ①+ ② + ③ + ④ + ⑤ are fully extended. Fig. 3-14

Section 3 –RATED TOTAL LOAD CHARTS 9/2020 MC285CB-3 3-13 Rated Total Load Chart for Standard Specification 1. All rated total loads are indicated in kilograms. 2. This load radius shown in this chart is based on practical working including boom deflection due to loading. The crane user must calculate and compensate for boom deflection as the load is lifted. 3. Deductions from rated total loads must be made for the weight of hook block, ball/hook, slings, rigging or other suspended gear. 4. The slewing range will be restricted if the outrigger angle is not at the standard extension. 5. The Rated Total Load Chart capacities are based on using the factory supplied Standard Wire Rope. If you replace the wire rope, use the correct specification, that meets or exceeds the standard wire rope strength and specification. 6. Standard wire rope specification: 6xFi (29) IWRC, 10 mm diameter, 48 m Specified breaking load: 41.2 kN Rated Total Load Chart–4 Falls Rated Total load Chart - 4 falls The unit of loads: kg 2.535 m Boom 2.536 – 4.075 m Boom 4.076 – 5.575 m Boom 5.576 – 7.075 m Boom 7.076 – 8.575 m Boom Load radius (m) Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Load radius (m) MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX 1.4 48.0 2820 1720 65.5 2820 1720 1.4 1.5 45.0 2520 1070 64.0 2520 1070 1.5 2.0 23.0 1920 630 56.0 1920 630 2.0 2.5 46.5 1570 520 2.5 3.0 35.5 1220 390 53.5 1220 510 3.0 3.5 19.0 970 350 47.0 970 410 3.5 3.6 46.0 930 370 57.0 820 400 3.6 4.0 39.0 780 330 52.5 740 330 60.0 550 330 4.0 4.5 29.5 630 280 47.5 580 280 56.0 400 280 4.5 5.0 15.5 530 200 41.5 480 230 52.0 340 230 5.0 5.5 34.5 430 180 47.5 300 180 5.5 6.0 26.5 380 160 43.0 270 160 6.0 6.5 14.0 350 130 37.5 230 130 6.5 7.0 31.5 200 100 7.0 7.5 24.0 180 80 7.5 8.0 13.0 150 70 8.0 Hook block mass weight 30 kg standard supplied Maeda hook block or ball.

Mini-Crawler Crane M A E D A 3-14 9/2020 MC285CB-3 Rated Total Load Chart–2 Falls Rated Total load Chart - 2 falls The unit of loads: kg 2.535 m Boom 2.536 – 4.075 m Boom 4.076 – 5.575 m Boom 5.576 – 7.075 m Boom 7.076 – 8.575 m Boom Load radius (m) Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Load radius (m) MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX 1.4 48.0 1410 1410 65.5 1410 1410 1.4 1.5 45.0 1410 1070 64.0 1410 1070 1.5 2.0 23.0 1410 630 56.0 1410 630 2.0 2.5 46.5 1410 520 2.5 3.0 35.5 1220 390 53.5 1220 510 3.0 3.5 19.0 970 350 47.0 970 410 3.5 3.6 46.0 930 370 57.0 820 400 3.6 4.0 39.0 780 330 52.5 740 330 60.0 550 330 4.0 4.5 29.5 630 280 47.5 580 280 56.0 400 280 4.5 5.0 15.5 530 200 41.5 480 230 52.0 340 230 5.0 5.5 34.5 430 180 47.5 300 180 5.5 6.0 26.5 380 160 43.0 270 160 6.0 6.5 14.0 350 130 37.5 230 130 6.5 7.0 31.5 200 100 7.0 7.5 24.0 180 80 7.5 8.0 13.0 150 70 8.0 Hook block mass weight 30 kg standard supplied Maeda hook block or ball. Rated Total Load Chart–Single Fall Rated Total load Chart - 1 Parts of Line The unit of loads: kg 2.535 m Boom 2.536 – 4.075 m Boom 4.076 – 5.575 m Boom 5.576 – 7.075 m Boom 7.076 – 8.575 m Boom Load radius (m) Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Load radius (m) MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX 1.4 48.0 710 710 65.5 710 710 1.4 1.5 45.0 710 710 64.0 710 710 1.5 2.0 23.0 710 630 56.0 710 710 2.0 2.5 46.5 710 520 2.5 3.0 35.5 710 520 53.5 710 510 3.0 3.5 19.0 710 390 47.0 710 410 3.5 3.6 46.0 710 370 57.0 710 400 3.6 4.0 39.0 710 330 52.5 710 330 60.0 550 330 4.0 4.5 29.5 630 280 47.5 580 280 56.0 400 280 4.5 5.0 15.5 530 200 41.5 480 230 52.0 340 230 5.0 5.5 34.5 430 180 47.5 300 180 5.5 6.0 26.5 380 160 43.0 270 160 6.0 6.5 14.0 350 130 37.5 230 130 6.5 7.0 31.5 200 100 7.0 7.5 24.0 180 80 7.5 8.0 13.0 150 70 8.0 Hook block mass weight 20 kg standard supplied Maeda hook block or ball.

Section 3 –RATED TOTAL LOAD CHARTS 9/2020 MC285CB-3 3-15 Rated Total Load Chart for Searcher Hook 1. This Rated Total Load Chart shows the maximum allowable capacities. These rated total loads are based on the machine standing level on a firm ground supporting surface, under ideal job conditions and a freely lifted load. 2. Sufficient design tolerance must be used to ensure adequate ground support surface design. The rated total loads are for static conditions only, and do not include dynamic effects of slewing, extending, retracting, lowering, raising, wind or adverse conditions. Crane users must reduce rated total loads ratings to take all conditions into account. 3. The Working radius shown in the Rated Total Load Chart is based on practical working radius including boom deflection due to loading. The crane user must calculate and compensate for boom deflection as the load is lifted. 4. Deductions from Searcher Hook Rated Total Load must be made for the weight of the searcher hook (22 kg), as well as block/ball and all rigging. 5. All capacities above the bold line are based on structural strength and other limitations. All other rated total loads are based on stability not exceeding 75% of tipping loads. 6. Crane users must consult the Operators Manual for complete details about assembly, operation, maintenance, configuration, and its limitations. Modifications to the crane, other than what is specified or supplied by the original equipment manufacturer, can result in a reduction of rated total load ratings. 7. This operating range chart does not include boom deflections. 8. At certain working conditions, moment limiter may display bigger load value the actual load. 9. RESTRICTED AREA: At high boom angles, E-Boom (arm) and the hook will interfere with each other. To avoid this interference: In SH1 position, do not operate above 50 degree boom angle. In SH2 position, do not operate above 75 degree boom angle.

Mini-Crawler Crane M A E D A 3-16 9/2020 MC285CB-3 Rated Total Load Chart for Searcher Hook-SH1 Fig 3-15 Rated Total load Chart - Searcher Hook - Position : SH1 The unit of loads: kg 2.535 m Boom 2.536 – 4.075 m Boom 4.076 – 5.575 m Boom 5.576 – 7.075 m Boom 7.076 – 8.575 m Boom Load radius (m) Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Load radius (m) MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX 50.0 or more Prohibited 50.0 or more Prohibited 50.0 or more Prohibited 50.0 or more Prohibited 50.0 or more Prohibited 2.0 46.0 850 820 2.0 2.5 31.0 850 740 2.5 2.9 10.0 850 610 48.5 850 580 2.9 3.0 46.5 850 540 3.0 3.5 37.0 850 400 3.5 3.6 35.5 830 380 3.6 4.0 25.0 830 290 46.5 850 300 4.0 4.4 7.0 730 210 41.0 730 240 4.4 5.0 31.5 540 180 47.5 500 180 5.0 5.5 21.0 440 150 42.0 420 160 5.5 5.9 7.0 380 110 37.0 370 140 48.5 280 130 5.9 6.0 36.0 360 140 47.5 270 130 6.0 6.5 29.0 320 110 43.0 230 110 6.5 7.0 19.5 290 100 38.0 200 100 7.0 7.4 5.0 250 Prohibited 34.0 180 7.4 7.5 32.5 170 7.5 8.0 26.5 150 Prohibited 8.0 8.5 17.5 130 8.5 8.95 3.0 240 8.95

Section 3 – RATED TOTAL LOAD CHARTS 9/2020 MC285CB-3 3-17 Rated Total Load Chart for Searcher Hook-SH2 Fig 3-16 Rated Total load Chart - Searcher Hook - Position : SH2 The unit of loads: kg 2.535 m Boom 2.536 – 4.075 m Boom 4.076 – 5.575 m Boom 5.576 – 7.075 m Boom 7.076 – 8.575 m Boom Load radius (m) Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Load radius (m) MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX 50.0 or more Prohibited 75.0 or more Prohibited 50.0 or more Prohibited 50.0 or more Prohibited 50.0 or more Prohibited 1.5 59.5 850 850 70.5 850 850 1.5 2.0 47.5 850 820 63.5 850 820 2.0 2.5 31.0 850 740 56.5 850 740 2.5 2.8 12.0 850 630 50.0 850 580 2.8 3.0 48.0 850 540 58.0 850 400 3.0 3.5 38.0 850 400 52.5 850 350 3.5 3.6 36.0 830 380 51.0 850 340 61.5 690 310 3.6 4.0 24.5 830 290 46.0 850 300 58.0 690 270 64.0 460 260 4.0 4.3 5.0 760 240 41.0 730 240 54.5 640 240 61.0 430 230 4.3 5.0 31.5 540 180 48.0 500 180 56.5 350 190 5.0 5.5 21.0 440 150 42.5 420 160 52.5 310 150 5.5 5.9 5.0 380 110 37.5 370 140 49.0 280 130 5.9 6.0 36.5 360 140 48.0 270 130 6.0 6.5 29.0 320 110 43.5 230 110 6.5 7.0 18.5 290 100 38.5 200 100 7.0 7.3 7.0 260 Prohibited 34.0 180 7.3 7.5 33.0 170 7.5 8.0 26.0 150 Prohibited 8.0 8.5 16.0 130 8.5 8.82 3.0 110 8.82

Mini-Crawler Crane M A E D A 3-18 9/2020 MC285CB-3 Rated Total Load Chart for Searcher Hook-SH3 Fig 3-17 Rated Total load Chart - Searcher Hook - Position : SH3 The unit of loads: kg 2.535 m Boom 2.536 – 4.075 m Boom 4.076 – 5.575 m Boom 5.576 – 7.075 m Boom 7.076 – 8.575 m Boom Load radius (m) Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Loaded Boom angle (deg) Outrigger position Load radius (m) MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX MAX Other than MAX 1.5 60.0 850 850 71.5 850 850 1.5 2.0 46.5 850 820 64.5 850 820 2.0 2.5 25.0 850 740 56.5 850 740 2.5 2.6 2.0 850 700 49.5 850 580 2.6 3.0 47.5 850 540 60.0 850 400 3.0 3.5 36.0 850 400 54.0 850 350 3.5 3.6 34.0 830 380 53.0 850 340 62.0 690 310 3.6 4.0 17.5 830 290 47.5 850 300 58.0 690 270 64.0 460 260 4.0 4.1 11.0 820 270 41.5 730 240 54.0 640 240 61.0 430 230 4.1 5.0 30.0 540 180 48.0 500 180 56.5 350 190 5.0 5.5 11.5 440 150 42.0 420 160 52.5 310 150 5.5 5.6 8.0 420 140 41.0 400 140 51.5 300 140 5.6 6.0 35.5 360 140 48.0 270 130 6.0 6.5 27.0 320 110 43.0 230 110 6.5 7.0 13.0 290 100 38.0 200 100 7.0 7.1 7.0 280 Prohibited 33.0 180 7.1 7.5 32.0 170 7.5 8.0 24.0 150 Prohibited 8.0 8.5 10.0 130 8.5 8.61 0.0 120 8.61

Section 3 – WORKING RADIUS/LIFTING HEIGHT 9/2020 MC285CB-3 3-19 WORKING RADIUS/LIFTING HEIGHT Standard This diagram shows the relationship among the working radius of this machine, boom angle and lifting height above the ground with no object hoisted. The diagram indicates that there is no deflection in the boom. The diagram is based on the assumptions that the operation is performed without load and that the outriggers are set correctly and on a firm and level surface. The boom (4) represents a condition where half of the “ mark” passes boom (3). For more information, see "RATED TOTAL LOAD CHARTS" on page 3-10. Fig 3-18

Mini-Crawler Crane M A E D A 3-20 9/2020 MC285CB-3 Point A denotes a boom angle and point B denotes a lifting height above ground. The same working radius is applied to points A and B. Fig 3-19 "WORKING RADIUS/LIFTING HEIGHT" on page 3-19 shows the relationships between the working radius, boom angle and lifting height at no load, with no deflection in the boom. A deflection occurs in the boom when an object is hoisted, which causes the working radius to widen slightly. This is load radius. The rated total load decreases with increase in the working radius. Actual crane operation requires planning of work, allowing for sufficient clearance more than that provided in the diagram. Fig 3-20

Section 3 – WORKING RADIUS/LIFTING HEIGHT 9/2020 MC285CB-3 3-21 Working Radius/Lifting Height for Searcher Hook DANGER! • When using the searcher hook, be sure to set searcher hook mode for moment limiter. • When using the searcher hook, the searcher hook position must always be switched to suit the actual conditions. • Never use the searcher hook and the crane hook simultaneously. Fig 3-21-1

Mini-Crawler Crane M A E D A 3-22 9/2020 MC285CB-3 Fig 3-21-2

Section 3 – WORKING RADIUS/LIFTING HEIGHT 9/2020 MC285CB-3 3-23 Fig.3-21-3

Mini-Crawler Crane M A E D A 3-24 9/2020 MC285CB-3 This Page Intentionally Left Blank

Mini-Crawler Crane M A E D A 4-2 9/2020 MC285CB-3 MACHINE COMPONENTS Fig. 4-1 1 - Working Light 2 - Boom 3 - Boom Telescope Cylinder (inside the boom) 4 - Boom Derrick Cylinder 5 - Angle Indicator 6 - Winch 7 - Post 8 - Travel Control 9 - Outrigger 10 - Outrigger Cylinder 11 - Machinery Cover 12 - Rubber Track 13 - Hook Hanger 14 - Crane Control 15 - Hook Block 16 - Hydraulic Oil Tank 17 - Front Idler 18 - Track Roller 19 - Tandem Track Roller 20 - Carrier Roller 21 - Travelling Motor and Sprocket 22 - Monitor

Section 4 – MACHINE COMPONENTS 9/2020 MC285CB-3 4-3 Working Light A working light to illuminate the front. Boom A boom with a 5-stage telescoping mechanism. Boom Telescoping Cylinder A telescoping cylinder built into the boom. Boom Derrick Cylinder A cylinder for lifting the main boom. Angle Indicator An angle meter for reading the boom angle by eye, located on either side of the boom. See “Reading the Angle Indicator” on page 3-13 on how to read the angle indicator. Winch A device for winding and unwinding winch wire, composed of a motor and drum. For operational methods for the winch, see “Hook Raising/Lowering Operation” on page 4-63. Post A frame of the slewing part on which the working machine is mounted. Travel Control A part for travel control of the machine. For operation method of travelling, see “TRAVELLING CONTROLS AND OPERATION” on page 4-29. Outrigger A device for stabilizing the vehicle body horizontally, composed of 4 units. For outrigger setup, see “OUTRIGGER SETTING” on page 4-43; for stowage see “OUTRIGGER STOWING” on page 4-53. Outrigger Cylinder A cylinder for extending the outrigger. Machinery Cover A left-right splitting machinery cover. Rubber Tracks Rubber tracks for travelling. For adjusting rubber track tension, see “Adjusting Rubber Track Tension” on page 5-39. Hook Hanger Device on which the hook block is stowed. Crane Control A part for controlling the crane. Hook Block A hook block to hoist the load. Hydraulic Oil Tank A tank for putting hydraulic oil in to operate the hydraulic oil equipment. Front Idler Track Roller Tandem Track Roller Carrier Roller Travel Motor and Sprocket Travel device for travelling. For operation method of travelling, see “TRAVELLING CONTROLS AND OPERATION” on page 4-29. Monitor A display device to display the status of the vehicle.

Mini-Crawler Crane M A E D A 4-4 9/2020 MC285CB-3 BATTERY COMPONENTS Fig. 4-2 1 - Battery 2 - Battery Charging Port 3 - Power Supply Cable 4 - Disconnect Switch 5 - Charger 6 - Electric Motor 7 - Motor Controller

Section 4 – BATTERY COMPONENTS 9/2020 MC285CB-3 4-5 Battery A power supply unit for powering the machine. Battery Charging Port A port for connecting the power supply cable to charge the battery. Power Supply Cable A cable used to connect the battery charging port and power supply outlet for charging the battery. This differs for 100 V and 200 V. Disconnect Switch A switch for shutting off the power from the battery. • LOCK: Provides power from the battery • UNLOCK: Isolates the battery Fig. 4-3 Charger A device that provides charging power from an input power source and controls the battery charging. Fig. 4-4 The battery includes a display and features the following functions: • Mode switch (1) Press to display information on the display. • Display (2) Displays various information. • Current/Time display selector switch (3) Press to toggle the display between current and time. • Voltage/Capacity display selector switch (4) Press to toggle the display between voltage and capacity. • On Charge lamp (5) Lights up when charging is in progress. • End Charge lamp (6) Lights up when charging is complete. Electric Motor A motor that converts electrical energy into mechanical energy. Motor Controller A controller for controlling the electric motor.

Mini-Crawler Crane M A E D A 4-6 9/2020 MC285CB-3 TRAVEL CONTROLS Control Location Fig. 4-5 1 - Motor Speed Adjuster Dial 2 - L. H. Travel Lever/Locking lever 3 - R. H. Travel Lever/Locking lever 4 - Starter Switch 5 - Emergency Stop Switch (EMO) 6 - Horn Switch 7 - Working Light Switch

Section 4 – TRAVEL CONTROLS 9/2020 MC285CB-3 4-7 Switches Motor Speed Adjuster Dial Used to adjust the motor speed when travelling. • MIN: Turning the dial counterclockwise (to the left) reduces the motor speed. • MAX: Turning the dial clockwise (to the right) increases the motor speed. Fig. 4-6 NOTICE: • Release your hand from the dial once the motor speed has increased to that required for the task. The dial will remain in that position. • The motor speed adjusted using the dial applies only when in travel mode. L. H. Travel Lever/Locking lever R. H. Travel Lever/Locking lever Use these levers to move the machine forward/backward, stop, turn, and to adjust the travelling speed. For more information, see “Directional Controls” on page 4-31. Fig. 4-7 The travel lever functions as a locking lever and is used to switch between machine travel operations and crane/outrigger operations. • Travel: Pull up the lever while releasing the lock to allow travel operations. • Crane/Outrigger: Push in and stow the lever while releasing the lock to allow crane/outrigger operations. Fig. 4-8 NOTICE: The following table shows how the lever position corresponds to the devices that can be operated. Lever position Crane (✓: Operates -: Does not operate) Travel operation Outrigger operation Crane operation Radio Remote control system Moment limiter Crane Outrigger Travel ✓ - - - - - Crane/ Outrigger ✓ (*) ✓ ✓ ✓ ✓ ✓ Operations marked (*) in the table are available but should be avoided for safety reasons (other than for inspections or maintenance). NOTICE: Depending on the machine status, safety devices other than the lever positions may activate, thus preventing operation. Starter Switch The Starter Switch is used to start and stop the machine. • OFF: You can insert/remove the key at this position. All the switches in the electrical system are turned off and the machine stops. • ON: Electricity runs into all the circuits. Fig. 4-9 12B

Mini-Crawler Crane M A E D A 4-8 9/2020 MC285CB-3 Emergency Stop Switch (EMO) The Emergency Stop Switch (EMO) is used to stop the machine in the event of an accident or emergency. The Emergency Stop Switch (EMO) must be in the OFF position to start the machine. Fig. 4-10 • ON: Press switch down to stop machine. • OFF: Turn switch clockwise (right) to allow the switch to return to the ON position. The switch returns to its original position, and the emergency stop state is reset. When restarting after an emergency stop, return all of the levers to their neutral positions, then return the emergency stop switch to the “OFF” position. Horn Switch The Horn Switch is used to sound the horn. Fig. 4-11 NOTICE: • The horn sounds only for as long as the switch is pressed down. Release the switch to silence the horn. • The horn switch is provided on the crane operation side as well. 13BWorking Light Switch The Working Light Switch is used to turn on the working light on the front of the machine. • ON: Push the switch upward to turn the Working Light on. • OFF: Push the switch downward to turn the Working Light off. Fig. 4-12 The working light does not operate when the Starter Switch is in the OFF position.

Section 4 – CRANE AND BOOM CONTROLS 9/2020 MC285CB-3 4-9 CRANE AND BOOM CONTROLS Control Location Fig. 4-13 1 - Slewing Lever 2 - Boom Telescoping Lever 3 - Winch Lever 4 - Boom Lift Lever 5 - Emergency Stop Switch (EMO) 6 - Horn Switch

Mini-Crawler Crane M A E D A 4-10 9/2020 MC285CB-3 Controls Slewing Lever The slewing lever is used to slew the crane boom and post. Boom Telescoping Lever The boom telescoping lever is used to telescope the crane boom. Winch Lever The winch lever is used to raise and lower the hook block of the crane. Boom Lift Lever The boom lift lever is used to raise and lower the boom of the crane. Emergency Stop Switch (EMO) The Emergency Stop Switch (EMO) is used to stop the machine in the event of an accident or emergency. The Emergency Stop Switch (EMO) must be in the OFF position to start the machine. Fig. 4-14 • ON: Press switch down to stop machine. • OFF: Turn switch clockwise (right) to allow the switch to return to the ON position. The switch returns to its original position, and the emergency stop state is reset. When restarting after an emergency stop, return all of the levers to their neutral positions, then return the emergency stop switch to the “OFF” position. Horn Switch The Horn Switch is used to sound the horn. NOTICE: • The horn sounds only for as long as the switch is pressed down. Release the switch to silence the horn. • The horn switch is provided on the crane operation side as well.

Section 4 – MONITOR 9/2020 MC285CB-3 4-11 MONITOR 16BStarting Screen Fig. 4-15 When the Starter Switch is turned “ON”, the starting screen is displayed. If operation lock password entry is activated then after the startup screen is displayed, the operation lock password screen will display. Next, a standby screen appears before switching to the home screen. When the travel lever is pulled up, the home screen switches to the travel screen. Only travel operations are possible on this screen. The crane and outriggers cannot be operated. Fig. 4-16

Mini-Crawler Crane M A E D A 4-12 9/2020 MC285CB-3 17BHome Screen Fig. 4-17 1 - Outrigger Mode Switch 2 - User Mode Switch 3 - Hook Stowage/Boom Stowage Switch 4 - Boom Lift Bypass Switch 5 - Motor Speed Adjuster Switch 6 - Level Gauge 7 - Time Display 8 - Hour Meter Display 9 - Battery Level Indicator 10 - Radio Remote Control System Connection Indication 11 - Outrigger Status Display 12 - Moment Limiter Status Display 13 - Warning Display 14 - Normal/Multi Mode Display 15 - Eco Mode Display

Section 4 – MONITOR 9/2020 MC285CB-3 4-13 18BOutrigger Mode Switch Used when operating the outriggers Press the switch to switch to outrigger mode. For more information on outrigger mode, see “Outrigger Mode” on page 4-41. Fig. 4-18 19BUser Mode Switch Used for user settings. Press the switch to switch to user mode. For more information on user mode, see “User Mode” on page 4-17. Fig. 4-19 20BHook Stowage/Boom Stowage Switch Used when stowing the hook or the boom Press the switch to display the selection for hook stowage and boom stowage. Fig. 4-20 The hook or boom can be stowed by pressing each switch. • Boom stowage: Switch (3-1) • Hook stowage: Switch (3-2) For more information on stowage procedures, see “Crane Stowing Operation” on page 4-67. Fig. 4-21 Boom Lift Bypass Switch Used to lift the boom in overload state Lifting is possible only while the switch is pressed down. For more information on the operation of Boom Lift Bypass Switch, see "Recovery Operation after Auto-Stop" on page 4-74. NOTICE: For more information on how to use the switch, see “Home Screen” on page 4-12. Fig. 4-22

Mini-Crawler Crane M A E D A 4-14 9/2020 MC285CB-3 Motor Speed Adjuster Switch Used to adjust the motor speed when operating the crane. Pressing the switch increments the motor speed in five steps. NOTICE: The switch is not displayed when radio remote control communication is being used. The motor speed adjusted applies only when in crane mode and outrigger mode. If the motor speed is limited by an eco mode setting, the eco mode setting takes precedence. Fig. 4-23 Motor speed Icon 900 rpm 1300 rpm 1700 rpm 2100 rpm 2500 rpm Level Gauge Displays the tilt status of the machine. The position of the yellow bubble indicates the direction in which the machine is tilting. Fig. 4-24 Time Display Displays the time set. 24BHour Meter Display Displays cumulative hours of operation.

Section 4 – MONITOR 9/2020 MC285CB-3 4-15 BBattery Level Indicator Displays the battery level. NOTICE: The flash sign at the centre of the indicator appears only when the battery is being charged. Fig. 4-25 Charge Icon 0% 1 to 20% 21 to 40% 41 to 60% 61 to 80% 81 to 100% • The icon blinks when the charge is between 1% and 10%. • The alarm buzzer emits two short beeps intermittently by an interval of 30 seconds when the charge is 20% or less. • The alarm buzzer emits a short beep intermittently by an interval of 30 seconds when the charge is 10% or less. 26B27BRadio Remote Control System Connection Display Displays the current radio remote control system connection status. • On: The radio remote control system is connected. • Off: The radio remote control system is not connected. Fig. 4-26 28BOutrigger Status Display Displays the current outrigger status. For more information on display content, see “OUTRIGGER INDICATORS” on page 4-38. 29BMoment Limiter Status Display Displays the current moment limiter status. For more information on display content, see “Moment Limiter Display” on 4-76. 30BWarning Display Displays illuminated warnings. For more information on the display content, see “Warning Display” on page 4-22. Fig. 4-27

Mini-Crawler Crane M A E D A 4-16 9/2020 MC285CB-3 Normal/Multi Outrigger State Display The display changes automatically to indicate the current outrigger extension status. • N lit: Normal Outrigger State • M lit: Multi Outrigger State • M blinking: Multi Mode failed The crane cannot be used in this state. See “Setting Outriggers (Multi Outrigger State)” on page 4-47 and redeploy the outriggers. Fig. 4-28 Eco Mode Display Displays the eco mode status currently set. • STD: Standard mode • ECO1: Eco mode 1 • ECO2: Eco mode 2 For information on the eco mode settings, see "User Mode" on page 4-17. Fig. 4-29

Section 4 – MONITOR 9/2020 MC285CB-3 4-17 31B41BUser Mode When the User Mode Switch is pressed on the Home Screen, the User Mode is displayed. Fig. 4-30 (2-1) Number of Falls Change (2-2) Eco Mode Setting Selection (2-3) Travel Alarm ON/OFF Selection (2-4) Error History Display (2-5) Consumables Display (2-6) Monitor Brightness Adjustment (2-7) Time Setting (2-8) Language Change (2-9) Switch Tone ON/OFF Change (2-10) Software Version Check (2-11) Warming Up ON/OFF Selection (2-12) Radio Remote Control System Accelerator Switch (2-13) Home Switch (2-14) Display Page Change

Mini-Crawler Crane M A E D A 4-18 9/2020 MC285CB-3 Number of Falls Change Number of falls can be changed. • 4 falls • 2 falls • Single fall Fig. 4-31 When the number of falls is changed, the number on the hook fall of the moment limiter changes and rated total load changes. Be sure to match the displayed number with the actual number of falls. Eco Mode Setting Selection Allows the motor speed limiting mode to be selected. • Standard Mode: The motor speed is not limited. This allows the machine performance to be used to the maximum. • Eco Mode 1: This limits the maximum motor speed for individual operations. It balances operability with battery consumption by limiting the motor speed without having to alter the operating speed for individual tasks. • Eco Mode 2: This limits the maximum motor speed for all operations. The maximum motor speed is limited for all operations, so operating speed may be reduced. On the other hand, battery consumption is minimized. Fig. 4-32 Travel Alarm ON/OFF Selection Allows the travel alarm to be switched on or off. • ON: The alarm sounds when the machine is travelling. • OFF: The alarm does not sound when the machine is travelling. Fig. 4-33 43B4BError History Display Allows review of current or past errors. • Red text: Current errors • White text: Past errors Fig. 4-34 For more information on error codes, see “Error Codes” on page 5-62.

Section 4 – MONITOR 9/2020 MC285CB-3 4-19 Consumables Display Lists consumables and indicates the time until the next scheduled replacement. Fig. 4-35 For more information on consumables list, see “CONSUMABLES” on 5-6. 5BIf a consumable has been replaced, use the ▲ or ▼ adjuster switches (2-5A) to select the consumable replaced. Once a consumable has been selected, hold down the replacement switch (2-5B) to update the replacement time. Updating increments the number of replacements by 1 and resets the time remaining. Fig. 4-36 If “Always” or “At start” is selected for the consumable icon display selection (2-5C), yellow text and a white icon will appear on the Home screen if the remaining time is 30 h or 3 days, while red text and a red icon will appear on the Home screen when the remaining time is 0 h or 0 days. Replace consumable promptly. Continued use past the recommended replacement date may be dangerous and harm the machine. NOTICE: We recommend setting the consumable icon display selection (2-5C) to “Always.” Always: Consumable icons are constantly displayed on the Home screen if the replacement time is approaching or has been exceeded. At start: Consumable icons are displayed only for 30 seconds after displaying the Home screen if the replacement time is approaching or has been exceeded. No: Consumable icons are not displayed on the Home screen, even if the replacement time is approaching or has been exceeded. Monitor Brightness Adjustment The monitor brightness can be adjusted. Make adjustments with ◄ or ► of adjustment switch(2-6A). Fig. 4-37

Mini-Crawler Crane M A E D A 4-20 9/2020 MC285CB-3 Time Setting The time setting, 24/12 hour display and summer time ON/OFF can be changed. Fig. 4-38 48BSetting the time Select the date and time desired to be changed with ◄ or ► of the adjustment switch (2-7A) and press the check mark (2-7B). (The part whose background is white is selected.) When the word colour turns red, editing becomes possible. Make adjustments with ◄ or ► of the adjustment switch in this condition. When the check mark is finally pressed, editing is completed. Fig. 4-39 24/12 Hour Display Change When the switch (2-7C) is pressed, time display can be changed to either 24 hour display or 12 hour display. Fig. 4-40 Summer Time ON/OFF When the switch (2-7D) is pressed, ON or OFF of summer time can be selected. • Summer Time OFF: Originally set time is displayed. • Summer Time ON: Time display is moved up by one hour. Fig. 4-41 B Language Change The display language can be changed and reset. • English: Switches the display language to English. • Japanese: Switches the display language to Japanese. • Reset: Switches to the default language setting. Fig. 4-42

Section 4 – MONITOR 9/2020 MC285CB-3 4-21 52BSwitch Tone ON/OFF Change When the switch is pressed, switch tone can be turned OFF and ON. • OFF: No tone is heard when switches are operated. • ON: Tone is heard when switches are operated. Fig. 4-43 Software Version Check The version of the controller software and monitor can be checked. Fig. 4-44 Warming Up ON/OFF Selection Allows warming-up to be switched on or off. • ON: The motor rotates even under no load when the starter switch is turned on. • OFF: The motor does not rotate under no load when the starter switch is turned on. The motor rotates when the levers are operated. Fig. 4-45 NOTICE: It is recommended that warming-up be turned on in cold conditions, as the machine and the hydraulic oil may take time to warm up. Radio Remote Control System Accelerator Switch The acceleration value can be adjusted for use of the radio remote control system operation lever. Set the desired value using ◄ or ► on the adjustment switch (2-12A). Fig. 4-46 NOTICE: For example, if set to 60%, the acceleration value will be 60% and not 100% when the radio remote control system operation lever is pushed all the way. 54BHome Switch • Short press: Returns one page. • Long press: Returns to home page. NOTICE: The function of the Home switch is the same for confirmation and setting screens. 5BDisplay Page Change Each time the switch is pressed, the page changes: “page 1/2 to page 2/2 to page 1/2”. NOTICE: The function of the Display Page Change switch is the same for confirmation and setting screens if they cover more than one page.

Mini-Crawler Crane M A E D A 4-22 9/2020 MC285CB-3 56BWarning Display CAUTION: If the warning monitor illuminates in red, immediately stop work and stop the machine, or set it to low idle. Then, immediately inspect the applicable part and take action for it. If a fault occurs in the machine, the warning display on the monitor illuminates in red, and an alarm buzzer sounds at the same time. Fig. 4-47 1 - Consumables Display 2 - Abnormality Display (abnormality detected) 3 - Error Code Display 4 - Slew Position Abnormality 5 - Slew Detection Abnormality 6 - Battery Terminal Check Display 7 - Warming Up Display 8 - Emergency Stop Display 9 - Lever Neutral Warning Display 10 - Emergency Stop Reset Guide Display 11 - Emergency Stop Reset Switch If warning and/or error code is displayed, check the warning content and error content. If an error code is displayed, see “Error Codes” on page 5-62 and correct the problem.

Section 4 – MONITOR 9/2020 MC285CB-3 4-23 57BConsumables Display A warning is displayed if the replacement time for consumables is approaching or has been exceeded. If a warning is displayed, replace the relevant consumable and take the appropriate action. See “CONSUMABLES” on 5-6. 58BAbnormality Display A warning is displayed if an abnormality occurs continuously in the machine. 65BError Code Display Displays an error code for the current error. If multiple errors occur simultaneously, check the error history display in user mode. Fig. 4-48 NOTICE: Error codes are also displayed if faults other than consumable related indications are displayed. For more information on error codes, see “Error Codes” on page 5-62, and take corrective action. Slew Position Abnormality A warning is displayed if the slewing angle is offset. If a warning appears, see “Slewing Position Calibration” on page 5-63 and calibrate the slewing angle. Fig. 4-49 Slew Detection Abnormality A warning is displayed if an abnormality occurs when using slewing operation lever limit switch detection. If a warning is displayed, see “Electrical Components” on page 5-59 and take the appropriate corrective action. Fig. 4-50 Battery Terminal Check Display Displayed when a voltage difference between batteries caused by an abnormality in the battery terminals is detected and stops the motor. Check the battery terminals. Fig. 4-51 Warming Up Display Displayed when the machine is warming up. Fig. 4-52

Mini-Crawler Crane M A E D A 4-24 9/2020 MC285CB-3 Emergency Stop Display Displayed when the emergency stop switch has been pressed. It disappears when the emergency stop is reset. Fig. 4-53 Emergency Stop Reset Guide Display/ Emergency Stop Reset Switch Displayed when the emergency stop switch has been pressed on the radio remote control unit. It disappears once communication is established with the radio remote control unit. To operate the levers on the machine while the guide is displayed, press the emergency stop reset switch at the bottom right of the monitor. Fig. 4-54 Lever Neutral Warning Display Displayed when a lever input was made after resetting the emergency stop. Let go of the control levers on the machine or the radio remote control unit. Fig. 4-55

Section 4 – COLD WEATHER OPERATION 9/2020 MC285CB-3 4-25 COLD WEATHER OPERATION WARNING! Tip Hazard. Do not travel over snow or frozen ground at unsafe speeds. Decrease speed to a safe setting and avoid sudden starts and stops. Fig. 4-56 WARNING! Exposure Hazard. Do not touch metal surfaces with bare skin in cold weather. Always wear gloves when working in cold weather. Use extreme caution when operating in cold weather. Frozen ground surfaces become soft when air temperature rises. The load that is to be hoisted could be stuck to the ground. NOTICE: When cold, always perform the warm-up operation. Sufficient warm-up operation is necessary when starting in cold temperatures. Insufficient warm-up operation will slow down the movement response of the travelling system or crane system to the operation levers, resulting in machine damage or personal injury. NOTICE: Hydraulic oil operating temperature is 50° to 80°C. When operating at low temperatures, increase the temperature of the hydraulic oil to a minimum of 20°C. Increase the hydraulic oil temperature by relieving the oil pressure. Allow the oil to flow to the hydraulic oil tank by using the operation lever. This will improve the machine hydraulic actions and prevent abnormal operation. NOTICE: After daily operation in cold weather, wipe and clean all condensation, snow, ice and mud from the wire harness, connector (1), switches and sensors. Fig. 4-57

Mini-Crawler Crane M A E D A 4-26 9/2020 MC285CB-3 STARTING Before starting the machine, see “Pre-Start Inspection” on page 5-16. WARNING! The following safety messages address a potential Entanglement Hazard while starting the machine: • Verify there are no people or obstacles near the machine before starting the machine. Sound the horn as a warning before starting the machine. Be sure the area is clear of people and obstacles before starting the machine. • Verify that all machine guards and covers are attached properly to the machine before starting the machine. Do not start the machine if any guards or covers are not properly installed on the machine. • Do not operate or carelessly contact the travelling levers while starting or operating the machine. Only operate the correct controls per the operation. • Always turn the Starter Switch to the OFF position after operation is complete and remove the key from the switch. Keep the key in your possession when the machine is not operating. CAUTION: Only use the starting procedure as described in this manual to start the machine. Starting the Machine Before starting the machine, make sure no personnel or impediments are close to the machine and honk the horn. 59BCAUTION: Verify that the radio remote control system is “OFF”. NOTICE: If the machine does not operate, check the battery charge level and the state of the disconnect switch. Insert the key into the starter switch and turn the key to the "ON" position. Fig. 4-58

Section 4 – WARM-UP 9/2020 MC285CB-3 4-27 WARM-UP WARNING! Unsafe Operation Hazard. In the event of a problem while performing the warm-up procedure, immediately turn the Starter Switch to the OFF position to stop power to the electrical system. Remove the key from the Starter Switch. Be sure to correct the problem before operating the machine. NOTICE: Once the machine starts, check the monitor to ensure no errors are displayed. Perform the following warm-up operation after the machine has started. If any problems are found during warm-up operation procedures, repair as necessary before continuing operation. 1. Push in the travel lever while unlocking the l ever to enable operation of the outriggers and the crane. Fig. 4-59 2. Set the outriggers. See “OUTRIGGER SETTING” on page 4-43. 3. Loosen the wire rope which has been locking the hook block before disengaging the hook block from its hanger. See “Before Crane Operation” on page 4-61. 4. Use the motor speed adjuster switch on the monitor to increment the display to the halfway position, and run the motor at medium speed. Fig. 4-60 5. Slowly operate the boom derrick lever back and forth so that the derrick cylinder extends and retracts to its stroke end to check that its function is normal. If not, correct it as necessary. Fig. 4-61 6. Slowly operate the boom telescope cylinder back and forth so that the boom extends or retracts to its stroke end to check that its function is normal. If not, correct it as necessary. Fig. 4-62

Mini-Crawler Crane M A E D A 4-28 9/2020 MC285CB-3 7. Slowly operate the winch lever back and forth to check that the hook block is hoisted and lowered smoothly, that it stops immediately when the winch lever is returned to NEUTRAL position and that the winch does not take up the rope in a disorderly manner. Correct any abnormality as necessary. Fig. 4-63 8. Slowly operate the slewing lever back and forth to check that the crane slews clockwise (right) and counterclockwise (left) smoothly more than 360 degrees respectively and that it stops immediately when the slewing lever is returned to NEUTRAL. Correct any abnormality as necessary. Fig. 4-64 STOPPING Normal Stopping NOTICE: • Check that the radio remote control is turned off. • Check that the machine has not been stopped by the emergency stop switch. Leaving the machine in this state will drain the battery. 1. Turn the Starter Switch key to OFF to stop the machine. Fig. 4-65 2. Remove the Starter Switch key. Emergency Stopping The Emergency Stop Switch (EMO) is used to stop the machine in the event of an accident or emergency. The Emergency Stop Switch (EMO) must be in the OFF position to start the machine. Fig. 4-66 • ON: Press switch down to stop machine. • OFF: Turn switch clockwise (right) to allow the switch to return to the ON position. The switch returns to its original position, and the emergency stop state is reset. When restarting after an emergency stop, return all of the levers to their neutral positions, then return the emergency stop switch to the “OFF” position.

Section 4 – TRAVELLING POSITION 9/2020 MC285CB-3 4-29 TRAVELLING POSITION Before setting the machine in travelling position review “TRAVELLING CONTROLS AND OPERATION” on page 4-29. Set the machine in travelling position before moving (travelling) the machine. Set the machine in travelling position by stowing the boom, hook block and outriggers. Fig. 4-67 1. Stow the hook block in the specified position. See “Hook Raising / Lowering Operation” on page 4-63. 2. Stow the outriggers. See “OUTRIGGER STOWING” on page 4-53. TRAVELLING CONTROLS AND OPERATION WARNING! The following safety messages address a potential Entanglement Hazard while the machine is travelling: • Verify there are no people within the travelling path of the machine or around the working site area before travelling. Sound the horn as a warning before moving the machine. Be sure people do not enter the travelling path or the working area while the machine is travelling. Fig. 4-68 • When reversing the machine, pay attention to your footing. Decrease machine to a slow speed and operate the machine carefully so that you will not lose your footing due to obstacles or uneven surface. • Avoid making sudden change of direction. It may cause loss of balance or damage the machine or nearby structure. Fig. 4-69 WARNING! The following safety messages address a potential Tip Hazard while the machine is travelling: • Never travel when a person or load is on the travelling dolly or boom. Do not allow a person to sit or stand on the travelling dolly or boom while moving the machine. Do not travel with a load placed on the travelling dolly or boom.

Mini-Crawler Crane M A E D A 4-30 9/2020 MC285CB-3 • Never make sudden directional changes while the machine is travelling. Reduce speed slowly and allow the machine to stop before changing direction. • When travelling over uneven ground, use a slow travel speed and avoid changing direction. WARNING! The following safety messages address a potential Tip Hazard while the machine is travelling on slopes (hills): • The tilt alarm buzzer sounds if the machine tilts by 15° or more from front to back or sideways when travelling. Avoid travelling over steeper slopes if the alarm buzzer sounds. • When travelling on a slope, the operator should always stand on the upper side of the machine. Fig. 4-70 • Always travel slowly and use caution when using the travel levers on a slope. Do not drive the machine too fast for the conditions of the slope. • Avoid travelling across slopes and changing travel direction of the machine while on slopes. When slopes must be crossed, and it is judged safe to do so, proceed with extreme caution and at a low speed. Never exceed 10° when travelling across a slope. Fig. 4-71 • Do not start the machine if the travel levers are not in the NEUTRAL position when the machine is on a slope. Always position the travel levers in NEUTRAL when starting the machine on a slope. WARNING! The following safety messages address a potential Tip Hazard while the machine is travelling over obstacles: • Avoid driving over obstacles, and uneven, unstable or rough terrain. When these obstructions must be crossed and it is judged safe to do so, proceed with extreme caution and at a low speed. Never exceed 10° when travelling over these obstructions. • Avoid driving over obstacles, projections and deep grooves. If possible, remove obstacles from the path of the machine. If necessary, drive over the centre of the obstacle, keeping it spaced between the tracks. Fig. 4-72 • Do not change the direction of the machine while travelling over obstacles. Only change the direction of the machine on solid ground away from obstacles. WARNING! The following safety message addresses a potential Tip Hazard while the machine is travelling over unstable ground: Be sure to know the condition of the ground that the machine must travel over. Do not travel on the following ground conditions: • Soft or lose ground • Ground near cliffs • Roadsides • Deep gullies • Wet ground • Ground disturbed by dynamite or earthquake • Filled holes • Uneven ground

Section 4 – TRAVELLING CONTROLS AND OPERATION 9/2020 MC285CB-3 4-31 WARNING! The following safety message addresses a potential Tip Hazard while the machine is travelling through water: Check the depth and water velocity before travelling through water. Do not travel through water without knowing the depth and water velocity. • When travelling through water, adhere to the permissible water depth, and drive slowly to prevent electrical equipment inside the frame from becoming wet. Permissible water depth: Not exceeding the centre of the track rollers Fig. 4-73 • There is a risk of electric shock and damage if electrical equipment is allowed to get wet. NOTICE: Always follow all local laws and regulations when travelling on public roads. Directional Controls Before travelling the machine, perform the following: • Retract and fully lower the boom. • Secure the hook block to the STOW position. • Stow and secure the outriggers, making sure each position pin is locked. To travel the machine: Move the travel lever to the TRAVEL position. The left and right travelling levers are used to move the machine forward/backward, stop, turn and adjust the travelling speed. Adjust the motor speed to low and move the left and right travelling levers slowly at the same time to check the travelling speed of the machine. Fig. 4-74 Travelling Forward Push the left and right travelling levers slowly at the same time to move forward. Fig. 4-75 Travelling in Reverse Pull the left and right travelling levers slowly at the same time to move in reverse. Fig. 4-76

Mini-Crawler Crane M A E D A 4-32 9/2020 MC285CB-3 Neutral Stop Release the left and right levers at the same time. The levers return to the NEUTRAL position and the machine automatically brakes and stops at that position. Left Turn Push the right travelling lever forward to turn left in the forward direction. Pull the right travelling lever toward you to turn left in reverse direction. Fig. 4-77 Right Turn • Push the left travelling lever forward to turn right in forward direction. • Pull the left travelling lever toward you to turn right in reverse direction. Spin Turns WARNING! Collision Hazard. Sudden steering or unnecessary spin turns at high speed can damage the rubber tracks and hydraulic devices, resulting in a collision with other equipment or people. Only make spin turns at a safe, controlled speed. NOTICE: Stop the machine, then adjust the motor speed to low before performing spin turns. Operate the left and right levers in the opposite directions. Left Spin Turn Push the right travelling lever forward while pulling the left travelling lever toward you to rotate the left and right rubber tracks in the opposite direction for a left spin turn. Fig. 4-78 Right Spin Turn Push the left travelling lever forward while pulling the right travelling lever toward you to rotate the left and right rubber tracks in the opposite direction for a right spin turn.

Section 4 – PARKING 9/2020 MC285CB-3 4-33 Left Turn Forward With the right travel lever pushed forward, return only the left travel lever to NEUTRAL. Fig. 4-79 Left Turn in Reverse With the right travel lever pulled back, return only the left travel lever to NEUTRAL. PARKING WARNING! Entanglement Hazard. Always turn the Starter Switch to the OFF position after operation is complete and remove the key from the switch. Keep the key in your possession when the machine is not operating. WARNING! Sudden Movement Hazard. Avoid sudden stops. Always provide adequate stopping distance when possible. WARNING! Collision Hazard. Do not park on a street without providing adequate safety precautions. Always provide safety precautions, such as clearly placed flags, protection barriers, lighting and caution notices, that do not interfere with traffic. Avoid parking the machine on unstable ground. Always park the machine on level, solid ground. If parking on a slope, block the machine to avoid movement. Fig. 4-80 NOTICE: Always set the travelling lever to the NEUTRAL position when parking the machine. 1. Move the left and right travelling levers to the NEUTRAL position at the same time. This automatically brakes and stops the machine. Fig. 4-81

Mini-Crawler Crane M A E D A 4-34 9/2020 MC285CB-3 2. Always park on solid, level ground. If you must park on a slope, place a chock in front of the tracks. Fig. 4-82

Section 4 – OUTRIGGER SAFETY DEVICES 9/2020 MC285CB-3 4-35 OUTRIGGER SAFETY DEVICES Safety Device Activation Warnings Review, understand and follow these operation sequences, warning alarms and stopping procedures when operating the machine. The following table shows the display and warning issued and the resulting action of the safety devices when the machine is used under normal conditions. Example: Standard Operation Sequence, Machine Status Display and Warning Activation of Safety Devices This field shows the standard operation sequence and the operation position of operation levers and switches, and machine status. This field shows the display and warning issued as a result of the operation. This field shows the name of the safety device that prevents the resulted error and its action. Before Setting Outriggers Standard Operation Sequence, Machine Status Display and Warning Activation of Safety Devices • Start the machine. • Travel lever in Crane/Outrigger position - - Check if the machine is in the BOOM STOWING position. • Fully retract the boom • Boom horizontal stowing position • Boom slewing stowing position • Boom Stowing Light on the monitor [green] on (Working Status Lamp [red] flashes) • Angle Setting Lights and Ground Set-Up Lights on the monitor [red] flash Outrigger interlock device • All the outrigger operations stop if the Boom Stowing Light does not turn on. Outrigger Setting Standard Operation Sequence, Machine Status Display and Warning Activation of Safety Devices Set the outriggers. 1. Extend the outriggers. • Rotate the outrigger pivot and secure at the specified position with the position pin. • Extend the outrigger and insert pin. • Angle Setting Lights on the monitor [green] on (Working Status Lamp [red] flashes) • Ground Set-Up Lights on the monitor [red] flash Outrigger interlock device • All the outrigger operations stop if one of the Angle Setting Lights flashes red. 2. Set the outriggers. • Check the level with the level gauge. • Ground Set-Up Lights on the monitor [green] on (Working Status Lamp [red] flashes) When the machine tilts 3 degrees or more during outrigger setting operation • Warning alarm buzzer sounds continuously Crane inclination alarm device is activated.

Mini-Crawler Crane M A E D A 4-36 9/2020 MC285CB-3 Before Stowing Outriggers Standard Operation Sequence, Machine Status Display and Warning Activation of Safety Devices Check if the machine is in the BOOM STOWING position. • Fully retract the boom. • Boom horizontal stowing position • Boom slewing stowing position • Boom Stowing Light [green] on the monitor on (Working Status Lamp [red] flashes) Outrigger interlock device • All the outrigger operations stop if the Boom Stowing Light does not turn on. Outrigger Stowing Standard Operation Sequence, Machine Status Display and Warning Activation of Safety Devices Stow the outriggers. 1. Set and stow the outriggers. • Ground Set-Up Lights [red] on the monitor flash (Working Status Lamp [red] flashes) Crane interlock device • If any of the Angle Setting Lights and Ground Set-Up Lights (total of eight) flash red, all the crane operations stop. 2. Retract and stow the outriggers. • Retract outrigger and secure with pin. • Rotate (Stow) the outrigger and secure with position pin. • Stop the machine. Angle Setting Lights [red] on the monitor flash (Working Status Lamp [red] flashes) When the machine tilts 3 degrees or more during outrigger stowing operation Warning alarm buzzer sounds continuously Crane inclination alarm device is activated.

Section 4 – OUTRIGGER COMPONENTS 9/2020 MC285CB-3 4-37 OUTRIGGER COMPONENTS Fig. 4-83 1 - Linkage Bracket 2 - Outrigger Cylinder 3 - Rotary 4 - Rotary Positioning Pin 5 - Outrigger Base Box 6 - Stay (of damper type) 7 - Outrigger Top Positioning Pin 8 - Inner Box Positioning Pin 9 - Outrigger Top Box 10 - Inner Box 11 - Pad 12 - Snap Pin 13 - Snap Pin

Mini-Crawler Crane M A E D A 4-38 9/2020 MC285CB-3 OUTRIGGER INDICATORS Fig. 4-84 1 - Outrigger Ground Set-Up Light 1 2 - Outrigger Ground Set-Up Light 2 3 - Outrigger Ground Set-Up Light 3 4 - Outrigger Ground Set-Up Light 4 5 - Outrigger Angle Setting Light 1 6 - Outrigger Angle Setting Light 2 7 - Outrigger Angle Setting Light 3 8 - Outrigger Angle Setting Light 4 9 - Boom Stowing Light

Section 4 – OUTRIGGER INDICATORS 9/2020 MC285CB-3 4-39 Outrigger Ground Set-Up Lights 1 to 4 The Outrigger Ground Set-Up Lights turn on to indicate the outrigger is set and there is pressure on the outrigger pad. The green light turns on when the outrigger pad is in contact with the ground. The red light flashes when the pad is raised (stowed). The outrigger contact status is detected by a detection switch at the base of the outrigger cylinder. Fig. 4-85 The Outrigger Ground Set-Up Lights turn on to indicate the outrigger is set and there is pressure on the outrigger pad. The Outrigger Ground Set-Up Lights turn off when the pad is lifted off of the ground. The conditions of the outrigger pad are detected by the detection switch (1) at the bottom of the outrigger cylinder. There is a detection switch at the bottom of all four outrigger cylinders. Fig. 4-86 Outrigger Angle Setting Lights 1 to 4 These turn on or off to indicate the outrigger status. The lights turn off when the outriggers are stowed, illuminate in green when the outriggers are fully extended, illuminate in yellow when the outriggers are not fully extended, and illuminate in red when in multi-angle state. Fig. 4-87 The Outrigger Angle Setting Lights turn on to indicate the outrigger is rotated outward. The Outrigger Angle Setting Lights turn on when the position pin (1) is inserted in the hole when the outrigger is rotated all the way out. When the outrigger is in the fully outer position it is detected by the Detection Switch (2) of the outrigger pivot. Fig. 4-88

Mini-Crawler Crane M A E D A 4-40 9/2020 MC285CB-3 Boom Stowing Light The Boom Stowing Light turns on to indicate the boom is stowed. The Boom Stowing Light changes between a steady green, steady yellow, and flashing red, depending on which of the following two storage positions are detected: The light flashes red when neither of the two stowage positions are detected. The light is steady yellow if only the slewing stowage position is detected. The outrigger is determined to be stowed once both detection positions are simultaneously detected and the Boom Stowing Light illuminates in green. Fig. 4-89 Boom Slewing Stowage Position Determined as stowed once the boom stops at the slewing stowage position. Boom movement is detected by interactions between the depression (2) on the post (slewing side) and the detector switch (1) on the travel undercarriage (fixed side). Fig. 4-90 Boom Fully Lowered Stowage Position The boom is determined to be stowed once it has stopped at the fully lowered stowage position. Boom movement is detected based on the boom angle. Outrigger Un-set Warning (Working Status Lamp: red) If any of the four outriggers is not properly set, the Working Status Lamp (red) flashes. Fig. 4-91