Rainier R4400 Manual 

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. Some images may vary depending upon which model is shown. 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 Rainier Outdoor Power Equipment, LLC. DANGER This manual contains important instructions for operating this generator. For your safety and the safety of others, be sure to read this manual thoroughly before operating the generator. Failure to properly follow all instructions and precautions can cause you and others to be seriously hurt or killed. Model Number Running Watts Peak Watts Gasoline Tank Size (G) Rated Speed (RPM) Ignition Type Spark plug Engine Disp (cc) Stroke X Bore Oil Capacity (qt.) Oil Type Fuel Type R4400 3600 4400 4 Gallons 3600 TCI F7TC 212cc 55X70 .6 qt. 10W30 Gasoline NOTICE This generator is NOT equipped with altitude carburetor modification. Even with a carburetor modification, engine horsepower will decrease about 3.5% for each 300 meter (1,000 foot) increase in altitude. The effect of altitude on horsepower will be greater if no carburetor modification is made. A decrease in engine horsepower will decrease the power output of the generator. Contact our service team to order altitude kits. TECHNICAL SPECIFICATIONS HAVE QUESTIONS? Email us at [email protected] Operating, servicing and maintaining this equipment can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your equipment in a well-ventilated area and wear gloves or wash your hands frequently when servicing your equipment. For more information go to www.P65Warnings.ca.gov. WARNING

Date of Purchase: Generator Model Number: Purchased from Store/Dealer: Generator Serial Number: IMPORTANT: KEEP YOUR PURCHASE RECEIPT TO ENSURE TROUBLE-FREE WARRANTY COVERAGE. PRODUCT REGISTRATION To ensure trouble-free warranty coverage, it is important you register your Rainier generator. You can register your generator by either: 1. Filling in the product registration form below and mailing to: Product Registration Rainier Outdoor Power Equipment, LLC 777 Manor Park Drive Columbus, Ohio 43228 2. Registering your product Online at www.rainierpower.com/register To register your generator you will need to locate the following information: RAINIER PRODUCT REGISTRATION FORM PERSONAL INFORMATION GENERATOR INFORMATION First Name:________________________________________ Model Number:______________________________________ Last Name: ________________________________________ Serial Number:_______________________________________ Street Address: ____________________________________ Date Purchased:_____________________________________ Street Address: ____________________________________ Purchased From:_____________________________________ City, State, ZIP:_____________________________________ Country:___________________________________________ Phone Number:_ ___________________________________ E-Mail:____________________________________________

R4400 TECHNICAL SPECIFICATIONS. . . . . . . . . . . . . 2 PRODUCT REGISTRATION. . . . . . . . . . . . . . . . . . . . . . 3 For Your Records: . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Product Registration . . . . . . . . . . . . . . . . . . . . . . . . 3 Product Registration Form . . . . . . . . . . . . . . . . . . . . 3 SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Safety Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Safety Symbol Definitions . . . . . . . . . . . . . . . . . . . . 5 General Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . . 6 ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Installing Wheels and Feet. . . . . . . . . . . . . . . . . . . . . 7 Installing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . 8 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Generator Features . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Control Panel Features . . . . . . . . . . . . . . . . . . . . . . 11 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Before Starting the Generator . . . . . . . . . . . . . . . . . . 12 Location Selection . . . . . . . . . . . . . . . . . . . . . . . . 12 Grounding the Generator . . . . . . . . . . . . . . . . . . . 12 High Altitude Operation/Conversion Kits. . . . . . . 12 Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Engine Fluids and Fuel. . . . . . . . . . . . . . . . . . . . . . . . 14 Adding Gasoline to the Fuel Tank . . . . . . . . . . . . 14 Starting the Generator . . . . . . . . . . . . . . . . . . . . . . . 15 Stopping the Generator. . . . . . . . . . . . . . . . . . . . . . . 16 Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . 16 During an Emergency . . . . . . . . . . . . . . . . . . . . . 16 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . 17 Engine Oil Maintenance . . . . . . . . . . . . . . . . . . . . . . 18 Engine Oil Specification . . . . . . . . . . . . . . . . . . . . 18 Checking Engine Oil . . . . . . . . . . . . . . . . . . . . . . 18 Adding Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . 18 Changing Engine Oil . . . . . . . . . . . . . . . . . . . . . . 19 Air Filter Maintenance. . . . . . . . . . . . . . . . . . . . . . . . 19 Cleaning the Air Filter . . . . . . . . . . . . . . . . . . . . . 20 Spark Plug Maintenance. . . . . . . . . . . . . . . . . . . . . . 20 Checking and Adjusting Valve Lash. . . . . . . . . . . . . . 21 Cleaning the Generator . . . . . . . . . . . . . . . . . . . . . . . 21 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . 22 WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

NOTICE are used throughout this manual to highlight important information. Be certain that the meanings of these alerts are known to all who work on or near the equipment. 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 alerts symbol. DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE Indicates a situation which can cause damage to the generator, personal property and/or the environment, or cause the equipment to operate improperly. NOTE: Indicates a procedure, practice or condition that should be followed in order for the generator to function in the manner intended. SAFETY SAFETY SYMBOL DEFINITIONS

or standing water while in use. Protect the generator from all hazardous weather conditions. Moisture or ice can cause a short circuit or other malfunction in the electrical circuit. Never operate the generator in an enclosed area. Engine exhaust contains carbon monoxide. Only operate the generator outside and away from windows, doors and vents. WARNING Voltage produced by the generator could result in death or serious injury. • Never operate the generator in rain or a flood plain unless proper precautions are taken to avoid being subject to rain or a flood. • Never use worn or damaged extension cords. • Always have a licensed electrician connect the generator to the utility circuit. • Never touch an operating generator if the generator is wet or if you have wet hands. • Never operate the generator in highly conductive areas such as around metal decking or steel works. • Always use grounded extension cords. Always use three-wire or double-insulated power tools. • Never touch live terminals or bare wires while the generator is operating. • Be sure the generator is properly grounded before operating. WARNING Gasoline, gasoline vapors & are extremely flammable and explosive under certain conditions. • Always refuel the generator outdoors, in a well-ventilated area. • Never remove the fuel cap with the engine running. • Never refuel the generator while the engine is running. Always turn engine off and allow the generator to cool before refueling. • Only fill fuel tank with gasoline. • Keep sparks, open flames or other form of ignition (such as matches, cigarettes, static electric sources) away when refueling. • Never overfill the fuel tank. Leave room for fuel to expand. Overfilling the fuel tank can result in a sudden overflow of gasoline and result in spilled gasoline coming in contact with HOT surfaces. Spilled fuel can ignite. If fuel is spilled on the generator, wipe up any spills immediately. Dispose of rag properly. Allow area of spilled fuel to dry before operating the generator. • Wear eye protection while refueling. • Never use gasoline as a cleaning agent. • Store any containers containing gasoline in a well-ventilated area, away from any combustibles or source of ignition. • Check for fuel leaks after refueling. Never operate the engine if a fuel leak is discovered. WARNING Never operate the generator if powered items overheat, electrical output drops, there is sparking, flames or smoke coming from the generator, or if the receptacles are damaged. Never use the generator to power medical support equipment. Always remove any tools or other service equipment used during maintenance from the generator before operating. NOTICE Never modify the generator. Never operate the generator if it vibrates at high levels, if engine speed changes greatly or if the engine misfires often. Always disconnect tools or appliances from the generator before starting. GENERAL SAFETY RULES SAFETY

BEFORE ASSEMBLING THE GENERATOR, REVIEW THE SAFETY SECTION STARTING ON PAGE 5. CAUTION Never lift the generator without assistance. The generator is heavy and lifting without assistance could result in personal injury. Never use the handles as a lifting point to support the entire weight of the generator. Only use the handles to move the generator by lifting the handles and using the wheels to move the generator. Use caution when collapsing the handles. Hands and fingers could get caught and pinched. NOTICE Assembling the generator will require lifting the unit on one side. Make sure all engine oil and fuel are drained from the unit prior to assembling. Once assembled, the wheel kit is not intended for on-road use. The wheel kit is designed for use on this generator only. INSTALLING FEET TO FRAME 1. Place generator on a flat surface. 2. Place a piece of cardboard or other soft material to tip the generator onto, to protect the frame paint and prevent the generator from sliding. Tip the generator onto the side. 3. Install the mounting foot to the frame using M8 flange bolts. 1 - Mounting Feet 2 - Flange Bolts M8 INSTALLING WHEELS TO FRAME 1. Insert axle pin through washer and wheel. 2. Install the wheel with axle pin through the axle bracket on the frame. The eye of the bolt should be facing toward the inside of the generator. 2 1 3 Assemble Wheel to Frame 3. Install the hairpin cotter through the axle pin to lock it in place. 1 - Axle Bracket 2 - Hairpin Clip 3 - Axle Pin 4. Repeat previous steps on other wheel. INSTALLING HANDLES TO FRAME 1. Install handle bracket to frame and secure with the two bolts and nuts included. 2. Secure the handle to the bracket with bolt and nut provided. 3. Install handle stopper with bolt and nut provided. ASSEMBLY Wheel Assembly Assemble Mounting Feet to Frame

negative (-) battery cable (black boot) to the negative (-) battery post. Replace the black boot so it protects the cable lug and battery post. 1 - Positive (+) Battery Cable (Red) 2- Negative (-) Battery Cable (Black) NOTICE The electric start generator is equipped with a battery charging feature. Once the engine is running, a small charge is supplied to the battery via the battery cables and will slowly recharge the battery. INSTALLING THE BATTERY WARNING To avoid electric shock: • ALWAYS connect the positive (+) battery cable (red boot) first when connecting battery cables. • ALWAYS disconnect the negative (-) battery cable (black boot) first when disconnecting battery cables. • NEVER connect the negative (-) battery cable (black boot) to the positive (+) post on the battery. • NEVER connect the positive (+) battery cable (red boot) to the negative (-) post on the battery. • NEVER touch both battery posts simultaneously. • NEVER place a metal tool across both battery posts. • ALWAYS use insulated or nonconducting tools when installing the battery. 1. Secure the positive (+) battery cable (red boot) tightly to the positive (+) battery post. Make sure boot is over battery post. 2. Locate negative (-) cable attached to alternator cable, remove tie and route to the negative (-) battery post. See below for location of negative (-) cable. (1) Negative Cable Attaching the Negative (-) Battery Wire (black) 1 1 2 ASSEMBLY

Fuel Cap: Close until clicking sound is heard. Control Panel: Contains the circuit breakers and outlets. Battery: Included for electric start models. Oil Fill Plug/Dipstick: Must be removed to add and check oil. FEATURES Oil Drain Plug: Must be removed to drain engine oil. Never Flat Wheels: For easy portability. Single Piece Handle: Includes rubber grip. Allows you to easily push or pull unit with one hand. Recoil Pull Handle: Pull recoil handle to start the generator. Choke: Move to ON for cold start and OFF for warm start. 1 5 6 7 9 10 8 2 3 4 1 2 4 6 8 10 7 9 5 3

Spark Plug Boot (Wire): Must be removed when servicing the engine or the spark plug. CARB Canister: Required for models sold into and used in California. Muffler and Spark Arrester: Avoid contact until engine is cooled down. Spark arrestor prevents sparks from exiting the muffler. It must be removed for servicing. 11 12 13 14 11 12 13 14 FEATURES

Outlet can supply 120V output. 120-Volt 30 Amp Outlet (TT-30R): Travel Trailer outlet can supply a maximum of 30 amps and 120 volts. Ground Terminal: The ground terminal is used to ground the generator. 20-Amp Circuit Breaker: Circuit breaker limits the current that can be delivered through the 120- volt duplex outlets to 20amps. Electric Start Switch: Hold in Start position to start generator. Switch to STOP to stop the engine. Data Center: The VFT Meter is an LED display that will rotate through volts, frequency, and lifetime run hours. You can press the MODE button to cycle through the different displays. The frequency and voltage can vary +/- 5% and still be within tolerance. 120-Volt, 20-Amp Duplex Outlets (5-20R): Each outlet is capable of carrying a maximum of 20 amps on a single receptacle or a combination of both receptacles. Main Circuit Breaker: The main circuit breaker controls total output of all outlets to protect the generator. CONTROL PANEL FEATURES 1 8 2 3 4 5 6 7 7 3 5 8 6 1 FEATURES 4 Frequency in hertz Lifetime run hours Voltage 2

rain, snow or any combination of weather conditions that could lead to moisture collecting on, in or around the generator. Dry Surface – Always operate the generator on a dry surface free of any moisture. No Connected Loads – Make sure the generator has no connected loads before starting it. To ensure there are no connected loads, unplug any electrical extension cords that are plugged into the control panel receptacles. NOTICE Starting the generator with loads already applied to it could result in damage to any appliance being powered off the generator during the brief start-up period. Grounding the Generator – The National Electric Code (NEC), as well as many local electrical codes, may require the generator to be connected to earth ground. The most common application that requires a ground rod is when you are using the generator as a separately derived system to provide back up power to your house. Typically this is when a transfer switch has a switched neutral. As the generator application has many variables that cannot be determined by the manufacturer of the generator, a licensed electrician will need to determine if a grounding rod is needed. If a licensed electrician has determined the application requires a ground rod, make sure it is connected to earth ground by connecting the ground terminal on the control panel to earth ground using copper wire (minimum 10 AWG). Consult a qualified electrician for local grounding requirements. WARNING Be sure the generator is properly connected to earth ground before operating. The generator must be grounded to prevent electrical shock due to faulty appliances. High Altitude Operation Engine power is reduced the higher you operate above sea level. Output will be reduced approximately 3.5% for every 1000ft of increased altitude from sea level. This is a natural occurrence and cannot be adjusted by engine. Increased exhaust emissions can also result due to increased fuel mixture. Other issues include hard starting, increased fuel consumption and spark plug fouling. BEFORE STARTING THE GENERATOR BEFORE STARTING THE GENERATOR, REVIEW SAFETY SECTION STARTING ON PAGE 5. Location Selection – Before starting the generator, avoid exhaust and location hazards by verifying: • You have selected a location to operate the generator that is outdoors and well ventilated. • You have selected a location with a level and solid surface on which to place the generator. • You have selected a location that is at least 15 feet (4.5 m) away from any building, other equipment or combustible material. • If the generator is located close to a building, make sure it is not located near any windows, doors and/or vents. WARNING Always operate the generator on a level surface. Placing the generator on non level surfaces can cause the generator to tip over, causing fuel and oil to spill. Spilled fuel can ignite if it comes in contact with an ignition source such as a very hot surface. Prolonged exposure to engine exhaust can cause serious injury or death. While charging a device do not place on the exhaust side of the generator. Extreme heat caused by exhaust can damage the device, and cause a potential fire hazard. NOTICE Only operate the generator on a solid, level surface. Operating the generator on a surface with loose material such as sand or grass clippings can cause debris to be ingested by the generator that could: • Block cooling vents • Block air intake system OPERATION

Rainier Outdoor Power Equipment assumes no responsibility for the content within this table. The use of this table is the responsibility of the user only. This table is intended for reference only. The results produced by using this table are not guaranteed to be correct or applicable in all situations as the type and construction of cords are highly variable. Always check with local regulations and a licensed electrician prior to installing or connecting an electrical appliance.

FLUIDS AND FUEL BEFORE ADDING/CHECKING ENGINE FLUIDS AND FUEL, REVIEW SAFETY SECTION STARTING ON PAGE 5. DANGER Filling the fuel tank with gasoline while the generator is running can cause gasoline to leak and come in contact with hot surfaces that can ignite the gasoline. Before starting the generator, always check: • Level of Engine oil • Level of gasoline in the fuel tank It is not safe to add gasoline to the fuel tank or engine oil to the engine while the engine is running or the engine and muffler are hot. CHECKING AND / OR ADDING ENGINE OIL WARNING Internal pressure can build in the engine crankcase while the engine is running. Removing the oil fill plug/ dipstick while the engine is hot can cause extremely hot oil to spray out of the crankcase and can severely burn skin. Allow engine oil to cool for several minutes before removing the oil fill plug/ dipstick. The unit as shipped does not contain oil in the engine. You must add engine oil before starting the generator for the first time. NOTICE The engine does not contain engine oil as shipped. Attempting to start the engine can damage engine components. The owner of the generator is responsible to ensure the proper oil level is maintained during the operation of the generator. Failure to maintain the proper oil level can result in engine damage. NOTICE During the first five hours of operating the generator make sure to not exceed 50% of the rated running watts until the unit is broken in properly. Make sure to vary to load occasionally to allow stator windings to heat and cool. Adjusting the load will also help seat piston rings. Check oil more often during the first couple times of operating the generator. NOTICE Weather will affect engine oil performance. Change the type of engine oil used based on weather conditions to suit the engine needs. ADDING GASOLINE TO THE FUEL TANK BEFORE ADDING/CHECKING ENGINE FLUIDS AND FUEL, REVIEW SAFETY SECTION STARTING ON PAGE 5. WARNING Never refuel the generator while the engine is running. Always turn the engine off and allow the generator to cool before refueling. Required Gasoline – Only use gasoline that meets the following requirements: • Unleaded gasoline only • Gasoline with maximum 10% ethanol added • Gasoline with an 87 octane rating or higher Filling the Fuel Tank – Follow the steps below to fill the fuel tank: 1. Shut off the generator. 2. Allow the generator to cool down so all surface areas of the muffler and engine are cool to the touch. 3. Move the generator to a flat surface. 4. Clean area around the fuel cap. 5. Remove the fuel cap by rotating counterclockwise. 6. Slowly add gasoline into the fuel tank. Be very careful not to overfill the tank. The gasoline level should NOT be higher than the filler neck. 7. Install the fuel cap by rotating clockwise until you hear a click, indicating the cap is completely installed. CAUTION Avoid prolonged breathing of gasoline vapors. Maximum Gasoline Fill Level OPERATION

BEFORE STARTING THE GENERATOR, REVIEW SAFETY SECTION STARTING ON PAGE 5. Before attempting to start the generator, verify the following: • The engine is filled with engine oil. • The generator is situated in a proper location. • The generator is on a dry surface. • All loads are disconnected from the generator. • The generator is properly grounded the Generator. DANGER Never use the generator in a location that is wet or damp. Never expose the generator to rain, snow, water spray or standing water while in use. Protect the generator from all hazardous weather conditions. Moisture or ice can cause a short circuit or other malfunction in the electrical circuit. Never operate the generator in an enclosed area. Engine exhaust contains carbon monoxide. Only operate the generator outside and away from windows, doors and vents. NOTICE The engine is equipped with a low oil shutdown switch. If the oil level becomes low, the engine may shut down and not start until the oil is filled to the proper level. Poor oil quality may interfere with the operation of the low oil shutdown switch. The owner of the generator is responsible to ensure the proper oil level is maintained during the operation of the generator. Failure to maintain the proper oil level can result in engine damage. STARTING THE GENERATOR Be sure to check oil and gas levels before starting. If it is the first time starting make sure to add oil. 1. Make sure nothing is plugged into power outlets. 2. Verify the battery is properly installed and both battery cables are attached. 3. Make sure the circuit breakers are properly set. 4. Move the fuel shut off valve to the ON position. ON OFF 5. If engine is cold, move the choke lever to the ON position. If engine is warm move the choke to the OFF position. 6. Choose starting method: a. Electric Start: Push and hold the engine control switch in the START position until the engine starts. Once the engine starts, release the engine control switch; the switch will automatically move into the RUN position. START RUN STOP Note: If the engine fails to start after 5 seconds, release the engine control switch. Let the generator sit idle for 15 seconds and then repeat step 6a. If the cranking speed drops after each unsuccessful attempt, then the battery may not be adequately charged. Manually start the generator by following steps below: a. Manual Start: Firmly grasp and pull the recoil handle slowly until you feel increased resistance. At this point, apply a rapid pull while pulling up and slightly away from the generator. 6. As the engine starts and stabilizes, gradually move the choke lever back to the OFF position. 7. Wait 15 seconds for engine to stabilize before plugging in electronic devices.

crankcase while the engine is running. Removing the oil fill plug/ dipstick while the engine is hot can cause extremely hot oil to spray out of the crankcase and can severely burn skin. Allow engine oil to cool for several minutes before removing the oil fill plug/dipstick. Always perform maintenance in a well- ventilated area. Gasoline fuel and fuel vapors are extremely flammable and can ignite under certain conditions. WARNING Avoid accidentally starting the generator during maintenance by removing the spark plug boot from the spark plug. For electric start generators, also disconnect the battery cables from the battery (disconnect the black negative (-) cable first) and place the cables away from the battery posts to avoid arcing. Allow hot components to cool to the touch prior to performing any maintenance procedure. MAINTENANCE BEFORE PERFORMING MAINTENANCE ON THE GENERATOR, REVIEW THE SAFETY SECTION STARTING ON PAGE 5, AS WELL AS THE FOLLOWING SAFETY MESSAGES. OPERATION STOPPING THE GENERATOR Normal Operation During normal operation, use the following steps to stop your generator: 1. Remove any connected loads from the control panel receptacles. 2. Allow the generator to run at “no load” to reduce and stabilize engine and alternator temperatures. 3. Position the engine control switch to STOP or if you plan to store the generator after use, turn the fuel shutoff valve to the OFF position and allow the fuel to be consumed from the carburetor. During an Emergency If there is an emergency and the generator must be stopped quickly, position the electric start switch to the STOP position immediately. START RUN STOP

maintenance or not following maintenance procedures can cause the generator to malfunction and could result in death or serious injury. NOTICE Periodic maintenance intervals vary depending on generator operating conditions. Operating the generator under severe conditions, such as sustained high-load, high-temperature, or unusually wet or dusty environments, will require more frequent periodic maintenance. The intervals listed in the maintenance schedule should be treated only as a general guideline. TABLE 1: MAINTENANCE SCHEDULE - OWNER PERFORMED Maintenance Item Before Every Use After First 20 Hours or First Month of Use After 50 Hours of Use or Every 6 Months After 100 Hour of Use or Every 6 Months After 300 Hours of Use or Every Year Engine Oil Check Level Change Change - - Cooling Features Check/Clean - - - - Air Filter Check - Clean* - Replace Spark Plug - - - Check/Clean Replace Spark Arrestor - - - Check/Clean - *Service more frequently if operating in dry and dusty conditions TABLE 2: MAINTENANCE SCHEDULE - AUTHORIZED SERVICE DEALER PERFORMED Maintenance Item Before Every Use After First 20 Hours or First Month of Use After 50 Hours of Use or Every 6 Months After 100 Hour of Use or Every 6 Months After 300 Hours of Use or Every Year Valve Clearance - - - - Check/Adjust Fuel Filter - - - Check/Clean - Idle Speed - - - - Check/Adjust CAUTION Avoid skin contact with engine oil or gasoline. Prolonged skin contact with engine oil or gasoline can be harmful. Frequent and prolonged contact with engine oil may cause skin cancer. Take protective measures and wear protective clothing and equipment. Wash all exposed skin with soap and water. Following the maintenance schedule is important to keep the generator in good operating condition. The following is a summary of maintenance items by periodic maintenance intervals. MAINTENANCE

Engine Oil Specification 1. Only use the engine oil specified in graphic below. 2. Only use 4-stroke/cycle engine oil. NEVER USE 2-STROKE/CYCLE OIL. Synthetic oil is an acceptable substitute for conventional oil. Recommended Oil CHECKING ENGINE OIL NOTICE Always maintain proper engine oil level. Failure to maintain proper engine oil level could result in severe damage to the engine and/or shorten the life of the engine. Always use the specified engine oil. Failure to use the specified engine oil can cause accelerated wear and/or shorten the life of the engine. Engine oil level should be checked before every use. 1. Always operate or maintain the generator on a flat surface. 2. Stop engine if running. 3. Let engine sit and cool for several minutes (allow crankcase pressure to equalize). 4. With a damp rag, clean around the oil fill plug/dipstick. 5. Remove oil fill plug/dipstick. Oil Fill Plug/Dipstick 6. Check oil level: When checking the engine oil, remove the oil fill plug/dipstick and wipe it clean. Thread the oil fill plug/dipstick all the way back in and then remove and check the oil level on the oil fill plug/ dipstick. • Acceptable Oil Level – Oil is visible on the crosshatches between the H and L lines on the oil fill plug/dipstick. • Low Oil – Oil is below the L line on the oil fill plug/ dipstick. ADDING ENGINE OIL 1. Always operate or maintain the generator on a flat surface. 2. Stop engine if running. 3. Let engine sit and cool for several minutes (allow crankcase pressure to equalize). 4. Thoroughly clean around the oil fill plug/dipstick. 5. Remove oil fill plug/dipstick and wipe clean. 6. Select the proper engine oil. 7. Using a funnel, slowly add engine oil to the engine. Stop frequently to check the level to avoid overfilling. 8. Continue to add oil until the oil is at the correct level. MAINTENANCE

1. Stop the engine. 2. Let engine sit and cool for several minutes (allow crankcase pressure to equalize). 3. Place oil pan (or suitable container) under the oil drain plug. 4. With a damp rag, thoroughly clean around the oil drain plug. 5. Remove the oil drain plug. Once removed, place the oil drain plug on a clean surface. Oil Drain Plug 6. Allow oil to completely drain. 7. Replace oil drain plug. 8. Fill crankcase with oil following the steps outlined in Adding Engine Oil. NOTICE Never dispose of used engine oil by dumping the oil into a sewer, on the ground, or into ground water or waterways. Always be environmentally responsible. Follow the guidelines of the EPA or other governmental agencies for proper disposal of hazardous materials. Consult local authorities or reclamation facility. AIR FILTER MAINTENANCE WARNING Never use gasoline or other flammable solvents to clean the air filter. Use only household detergent soap to clean the air filter. Cleaning the Air Filter The air filter must be cleaned after every 50 hours of use or 3 months (frequency should be increased if generator is operated in a dusty environment). 1. Turn off the generator and let it cool for several minutes if running. 2. Move the generator to a flat, level surface. 3. Unlock the air filter cover. 4. Remove the black coarse air filters. 5. Wash the foam air filter elements by submerging the elements in a solution of household detergent soap and warm water. Slowly squeeze the foam to thoroughly clean. NOTICE NEVER twist or tear the foam air filter element during cleaning or drying. Only apply slow but firm squeezing action. 6. Rinse in clean water by submerging the air filter elements in fresh water and applying a slow squeezing action oil pan MAINTENANCE

NOTICE Never dispose of soap cleaning solution used to clean the air filter by dumping the solution into a sewer, on the ground, or into ground water or waterways. Always be environmentally responsible. Follow the guidelines of the EPA or other governmental agencies for proper disposal of hazardous materials. Consult local authorities or reclamation facility. 7. Dispose of used soap cleaning solution properly. 8. Dry the air filter elements by again applying a slow firm squeezing action. 9. Once the air filters are dry, coat the air filters with clean engine oil. 10. Squeeze the filters to remove any excess oil. 11. Install the filters back into the unit. If there are two filters make sure the gray (fine) air filter goes in first followed by the black (coarse) air filter on the outside. 12. Install the air filter cover and secure the air filter assembly. SPARK PLUG MAINTENANCE The spark plug must be checked and cleaned after every 100 hours of use or 6 months and must be replaced after 300 hours of use or every year. 1. Stop the generator and let it cool for several minutes if running. 2. Move the generator to a flat, level surface. 3. Remove the spark plug boot by firmly pulling the plastic spark plug boot handle directly away from the engine. NOTICE Never apply any side load or move the spark plug laterally when removing the spark plug. Applying a side load or moving the spark plug laterally may crack and damage the spark plug boot. Remove Spark Plug Boot 4. Clean area around the spark plug. 5. Using the 13/16” spark plug socket wrench provided, remove the spark plug from the cylinder head. 6. Place a clean rag over the opening created by the removal of the spark plug to make sure no dirt can get into the combustion chamber. Inspect the spark plug for: • Cracked or chipped insulator • Excessive wear • Spark plug gap (the acceptable limit of 0.027–0.032 in. [0.70 – 0.80 mm]). NOTICE Use only recommended spark plugs when servicing. The manufacturer is not responsible for engine damage when using spark plugs not recommended by the manufacturer. 7. Install the spark plug by carefully following the steps outlined below: a. Carefully insert the spark plug back into the cylinder head. Hand-thread the spark plug until it bottoms out. b. Using the 13/16” spark plug socket wrench provided, turn the spark plug to ensure it is fully seated. c. Replace the spark plug boot, making sure the boot fully engages the spark plug’s tip. Recommended Spark Plug Replacement: AC Delco: 4EXLS Autolite: 52 Champion: N9YC Bosch: W7DC Torch: F7TC SPARK PLUG GAP MAINTENANCE

It is important to inspect and clean the generator before every use. Clean All Engine Air Inlet and Outlet Ports – Make sure all engine air inlet and outlet ports are clean of any dirt and debris to ensure the engine does not run hot. Clean All Engine Cooling Fins – Use a damp rag and a brush to loosen and remove all dirt on or around the engine’s cooling fins. Clean All Alternator Cooling Air Inlets and Exhaust Ports – Make sure the cooling air inlets and exhaust ports of the alternator are free of any debris and ob- structions. Use a vacuum cleaner to remove dirt and debris stuck in the cooling air inlets and exhaust ports. General Cleaning of the Generator – Use a damp rag to clean all remaining surfaces. STORING GENERATOR WARNING Never store a generator with fuel in the tank indoors or in a poorly ventilated area where the fumes can come in contact with an ignition source such as a: 1) pilot light of a stove, water heater, clothes dryer or any other gas appliance; or 2) spark from an electric appliance. NOTICE Gasoline stored for as little as 60 days can go bad, causing gum, varnish and corrosive buildup in fuel lines, fuel passages and the engine. This corrosive buildup restricts the flow of fuel, preventing an engine from starting after a prolonged storage period. Proper care should be taken to prepare the generator for any storage. 1. Make sure the Engine Switch is switched to STOP so the generator does not draw power from battery. 2. Clean the generator as outlined in Cleaning the Generator. 3. Drain all gasoline from the fuel tank as best as possible. 4. Drain fuel out of carburetor bowl by loosening screw. fuel pan CHECKING AND ADJUSTING VALVE LASH CAUTION Checking and adjusting valve lash must be done when the engine is cold. 1. Remove the rocker arm cover and carefully remove the gasket. If the gasket is torn or damaged, it must be replaced. 2. Remove the spark plug so the engine can be rotated more easily. 3. Rotate the engine to top dead center (TDC) of the compression stroke. Looking through the spark plug hole, the piston should be at the top. 4. Both the rocker arms should be loose at TDC on the compression stroke. If they are not, rotate the engine 360°. 5. Insert a feeler gauge between the rocker arm and the push rod and check for clearance. See Table 3 for valve lash specifications (1) Push Rod, (2) Feeler Gauge Area (3) Rocker Arm, (4) Jam Nut, (5) Adjusting Nut (Table 3) Standard Valve Lash Intake Valve Exhaust Valve Valve Lash 0.0035 ± 0.0043 in (0.09 ± 0.11 mm) 0.0043 ± 0.0051 in (0.11 ± 0.13 mm) Bolt Torque 8-12N.m 8-12N.m 6. If an adjustment is required, hold the adjusting nut and loosen the jam nut. 7. Turn the adjusting nut to obtain the correct valve lash. When the valve lash is correct, hold the adjusting nut and tighten the jam nut to 106 in-lb (12 N•m). 8. Recheck the valve lash after tightening the jam nut. 9. Perform this procedure for both the intake and exhaust valves. 10. Install the rocker arm cover, gasket and spark plug. 1 2 3 4 5 MAINTENANCE

and allow the generator to run until all the remaining gasoline in the fuel lines and carburetor is consumed and the engine shuts off. 6. Close the fuel shut off valve. 7. Change the oil. 8. Remove the spark plug and place about 1 tablespoon of oil in the spark plug opening. While placing a clean rag over the spark plug opening, slowly pull there coil handle to allow the engine to turn over several times. This will distribute the oil and protect the cylinder wall from corroding during storage. 9. Replace the spark plug. 10. Move the generator to a clean, dry place for storage. WARNING Before attempting to service or troubleshoot the generator, the owner or service technician must first read the owner’s manual and understand and follow all safety instructions. Failure to follow all instructions may result in conditions that can lead to voiding of the EPA certification or product warranty, serious personal injury, property damage or even death. PROBLEM POTENTIAL CAUSE SOLUTION Engine is running, but no electrical output 1. Circuit breakers are tripped. 1. Reset the circuit breakers and check for overload condition. 2. The power cord’s plug connector is not fully engaged in the generator’s outlet. 2. Verify plug connector is firmly engaged in the generator’s outlet. 3. Faulty or defective power cord 3. Replace power cord. 4. Faulty or defective electrical appliance 4. Try connecting a known good appliance to verify the generator is producing electrical power. 5. If trying 1-4 above does not solve the problem, the cause might be the generator has a fault. 6. Take the generator to your nearest authorized service dealer. Engine runs erratic; does not hold a steady RPM. 1. Dirty air filter 1. Clean the air filter. 2. Applied loads maybe cycling on and off 2. As applied loads cycle, changes in engine speed may occur; this is a normal condition. 3. If trying 1-2 above does not solve the problem, the cause might be a fault in the generator 3. Take the generator to your nearest authorized service dealer. Generator suddenly stops running. 1. Generator is out of fuel. 1. Check fuel level. Add fuel if necessary. 2. The low oil shut down switch has stopped the engine. 2. Check oil level and add oil if necessary. 3. Too much load 3. Restart the generator and reduce the load. 4. If trying 1-3 above does not solve the problem,the cause might be a fault in the generator. 4. Take the generator to your nearest authorized service dealer. MAINTENANCE TROUBLESHOOTING

remain running while trying to start. 1. Fuel shutoff valve is in the OFF position. 1. Move the fuel shut off valve to the ON position. 2. Generator is out of gasoline. 2. Add gasoline to the generator. 3. Fuel flow is obstructed. 3. Inspect and clean fuel delivery passages. 4. Starting battery may have insufficient charge 4. On electric start models only. Check battery output and charge battery as necessary. 5. Dirty air filter 5. Check and clean the air filter. 6. Low oil level shut down switch is preventing the unit from starting. 6. Check oil level and add oil if necessary. 7. Spark plug boot is not fully engaged with the spark plug tip. 7. Firmly push down on the spark plug boot to ensure the boot is fully engaged 8. Spark plug is faulty. 8. Remove and check the spark plug. Replace if faulty. 9. Dirty/plugged spark arrestor 9. Check and clean the spark arrestor. 10. Stale fuel 10. Drain fuel and replace with fresh fuel. 11. If trying 1-10 above does not solve the problem, the cause might be the generator has a fault. 11. Take the generator to your nearest authorized service dealer. TROUBLESHOOTING

Rainier Outdoor Power Equipment warrants to the original purchaser that its Rainier line of generators will be free from defects in material and workmanship. Under normal use and maintenance from the date of purchase, Rainier Outdoor Power Equipment agrees to repair or replace at Rainier Outdoor Power Equipment’s discretion, any defective product free of charge at any authorized Rainier Outdoor Power Equipment Authorized Service Dealer within the below listed applications, time periods, limitations, and exclusions. THIS LIMITED WARRANTY IS EXTENDED TO THE ORIGINAL PURCHASER ONLY AND IS NOT TRANSFERABLE TO SUBSEQUENT OWNERS EXCEPT FOR EMISSION RELATED PARTS. This warranty is separate from the Emission Control Warranty Statement supplied with your new product. Please consult the Emission Control Warranty Statement for details regarding emission related parts. OWNER’S RESPONSIBILITY To ensure trouble free warranty coverage it is important that you register your Rainier generator. You may register on-line at www.rainierpower.com/register, or by filling out and returning to Rainier Outdoor Power Equipment the warranty registration card supplied with your generator. Registering your product confirms your warranty coverage and provides a direct link between you and Rainier Outdoor Power Equipment if we find it necessary to contact you. Transportation charges on product submitted for repair or replacement under this warranty are the sole responsibility of the purchaser. Your receipt for purchase including date, model and serial number must be maintained and presented to an Rainier Outdoor Power Equipment Authorized Service Dealer for warranty service. Proof of purchase rests solely with you, the original purchaser. You must demonstrate reasonable care and use, and follow preventive maintenance, storage, fuel and oil usage as prescribed in the operator’s manual for your Rainier generator. Should a product difficulty occur, you must, at your expense, deliver or ship your Rainier generator to an Rainier Outdoor Power Equipment Authorized Service Dealer for warranty repairs (which must occur within the applicable warranty period), and arrange for pick-up or return of your generator after the repairs have been made. PRODUCT WARRANTY APPLICATIONS AND PRODUCT WARRANTY PERIODS Consumer Application For the purpose of this limited warranty “Consumer Application” means usage by the original purchaser for the purpose of personal residential household or recreational use. • Replacement parts will be covered for a period of three years from the date of purchase. • If proof of purchase is not available to establish the purchase date nor is the equipment registered as suggested herein, the date of manufacturing as recorded by Rainier Outdoor Power Equipment will start the product warranty period. Commercial or Rental Applications For the purpose of this limited warranty “Commercial Application” means usage by the original purchaser for the purpose of income producing, business related use. Once a generator has been used for income producing and business related purposes, it shall thereafter be considered a ”Commercial Application” and the following warranty will apply. • Replacement parts will be covered for a period of six months from the date of purchase. • If proof of purchase is not available to establish the purchase date nor is the equipment registered as suggested herein, the date of manufacturing as recorded by Rainier Outdoor Power Equipment will start the product warranty period. NON-WARRANTABLE APPLICATIONS THE RAINIER OUTDOOR POWER EQUIPMENT LINE OF GENERATORS IS EXPRESSLY NOT RECOMMENDED FOR NOR WARRANTED FOR THE FOLLOWING APPLICATIONS: Medical and Life Support Uses – This product is not recommended for and is NOT warranted for the use to power Medical and Life Support equipment or devices. Prime Power – This warranty does not apply to generators used for Prime Power (primary source of power) in place of utility power where utility power service is present or where utility power service does not normally exist, regardless of whether a Consumer Application or Commercial Application is involved. 20190801KD - Rev 2

• Rainier Outdoor Power Equipment portable generators that utilize non-Rainier Outdoor Power Equipment replacement parts. • Costs of normal maintenance and adjustments. • Failures caused by any contaminated fuels, oils, or lack of proper oil levels. • Repairs or diagnostics performed by individuals other than Rainier Outdoor Power Equipment authorized dealers not authorized in writing by Rainier Outdoor Power Equipment. • Failures due to normal wear and tear, accident, misuse, abuse, negligence or improper use. As with all mechanical devices, the Rainier Outdoor Power Equipment engines need periodic part(s) service and replacement to perform as designed. This warranty will not cover repair when normal use has exhausted the life of a part(s) or engine. • Failures caused by any external cause or act of God, including but not limited to, collision, theft, vandalism, riot, war, fire, freezing, lightning, earth-quake, windstorm, hail, water, flood, tornado, or hurricane. • Damage related to rodent and/or insect infestation. • Products that are modified or altered in a manner not authorized in writing by Rainier Outdoor Power Equipment. • Any incidental, consequential or indirect damages caused by defects in materials or workmanship, or any delay in repair or replacement of the defective part(s). • Failure due to misapplication. • Telephone, cellular phone, facsimile, Internet access, or other communication expenses. • Expenses related to “customer instruction” or troubleshooting where no manufacturing defect is found. • Overnight freight or special shipping costs for replacement part(s). • Overtime, holiday or emergency labor. • Starting battery, fuses, light bulbs and engine fluids. DISCLAIMER OF IMPLIED WARRANTIES This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of FITNESS FOR A PARTICULAR PURPOSE OR USE and any implied warranty of MERCHANTABILITY otherwise applicable to Rainier Outdoor Power Equipment’s line of generators. Rainier Outdoor Power Equipment and its affiliated companies shall not be liable for any special, incidental or consequential damage, including lost profits. There are no warranties extended other than as provided herein. This limited warranty may be modified only by Rainier Outdoor Power Equipment. Any implied warranties allowed by law shall be limited in duration to the terms of the express warranty provided herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you. This warranty gives you specific legal rights. You also have other rights from state to state. Rainier Outdoor Power Equipment’s ONLY LIABILITY SHALL BE THE REPAIR OR REPLACEMENT AS STATED ABOVE. IN NO EVENT SHALL Rainier Outdoor Power Equipment BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF SUCH DAMAGES ARE A DIRECT RESULT OF Rainier Outdoor Power Equipment’s NEGLIGENCE. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you. This warranty gives you specific legal rights and you may also have other rights from state to state. This limited warranty is given by Rainier Outdoor Power Equipment, 777 Manor Park Drive, Columbus, OH 43228 20190801KD - Rev 2