Yard-Man 31AH763G401 Operator's Manual

before operating equipment. Warning; This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest- covered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting applieabIe local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark attester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722. MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722 PRINTED IN U,S.A. FOF',M NO. 770-10021B ECONo.1481 (6/2000)

Practices ................................................................... 3 Assembling Your Snow Thrower ........................ _.............................................. 5 Know Your Snow Thrower ................................................................................. 8 Operating Your Snow Thrower .......................................................................... 10 Making Adjustments .......................................................................................... !2 Maintaining Your Snow Thrower ........................................................................ 13 Service .............................................................................................................. 14 Troubleshooting ................................................................................................. 17 Parts List ............................................................................................................ 18 FINDINGMODELNUMBER This Operator's Manual is an important part of your new Snow Thrower, It will help you assemble, prepare and maintain the unit for best performance, Please read and understand what it says. Before you start assembling your new equipment, please locate the model plate on the equipment and copy the information from it in the space provided below, The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer. You can locate the model number by looking at the lower frame cover in the rear of your snow thrower. A sample model plate is explained below. For future reference, please copy the model number and the serial number of the equipment in the space below. iv (Model Number) (Serial Number) [.M=ZpTOV/c o.o.°oooc..,°c • o,,o,,t3,j Copy the model number here: Copy the serial number here: CALLINGCUSTOMERSUPPORT If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, please call the Customer Support Department. Call 1- (330) 220*4MTD (4683) or 1- (800)-800-7310 to reach a Customer Support representative. Please have your unit's model number and serial number ready when you call. See previous section to locate this information. You will be asked to enter the serial number in order to process your call.

which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol--heed its warning. WARNING: Engine Exhaust, some of its constituents, and certain vehic-le components contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm. DANGER: This machine was built to be operated according to the rules for safe operation in this manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury or death. Training 1. Read, understand and follow a]linstructions on the machine and in the manual(s) before attempting to assemble and operate. Keep this manual in a safe place for future and regular reference and for ordering replacement parts. 2. Be familiar with all controls and their proper operation. Know how to stop the machine and disengage them quickly. 3. Never allow children under 14 years old to operate this machine. Children 14 years old and over should read and understand the operation instructions and safety rules in this manual and should be trained and supervised by a parent. 4. Never allow adults to operate this machine without proper instruction. 5. Thrown objects can cause serious personal injury. Plan your snow throwing pattern to avoid discharge of material toward roads, bystanders and the like. 6. Keep bystanders, helpers, pets and children at least 75 feet from the machine while it is in operation. Stop machine if anyone enters the area. 7. Exercise caution to avoid slipping or falling, especially when operating in reverse. Preparation 1_ Thoroughly inspect the area where the equipment is to be used. Remove all door mats, newspapers, sleds, boards, wires and other foreign objects which could be tripped over or thrown by the augedimpeller. 2_ Always wear safety glasses or eye shields during operation and while performing an adjustment or repair to protect your eyes. Thrown objects which ricochet can cause serious injury to the eyes. 3. Do not operate without wearing adequate winter outer garments. Do not wear jeweIry, long scarves or other loose clothing which could become entangled in moving parts. Wear footwear which will improve footing on slippery surfaces. 4. Use a grounded three wire extension cord and receptacle for all units with electric start engines. 5. Adjust collector housing height to clear gravel or crushed rock surfaces. _. Disengage all clutch levers before starting the engine. 7. 8. 9_ Never attempt to make any adjustments while engine is running, except where _pecifically recommended in the operator's manual. Let engine and machine adjust to outdoor temperature before starting to clear snow. To avoid personaI injury or property damage use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive, Serious personal injury can occur when gasoline is spilled on yourself or your clothes which can ignite. Wash your skin and change clothes imrnediately. a. Use only an approved gasoline container. b. Extinguish all cigarettes, cigars, pipes and other sources of ignition. c. Never fuel machine indoors. d. Never remove gas cap or add fuel while the engine is hot or running. e. Allow engine to cool at least two minutes before refueling. f. Never over fill fuel tank, Fill tank to no more than _/2inch below bottom of filler neck to provide space for fuel expansion. g, Replace gasoline cap and tighten securely. h. If gasoline is spilled, wipe it off the engine and equipment. Move machine to another area. Wait 5 minutes before starting the engine. i. Never store the machine or fuel container inside where there is an open flame, spark or pilot light (e.g. furnace, water heater, space heater, clothes dryer etc.). j, Allow machine to cool at least 5 minutes before storing. Operation 1. Do not put hands or feet near rotating parts, in the auger/ impeller housing or discharge chute. Contact with the rotating parts can ampul:ate hands and feet. 2_ The auger/impeller clutch lever is a safety device. Never bypass its operation. Doing so, makes the machine unsafe and may cause personal injury. 3. The clutch levers must c,perata easily in both directions and automatically return to the disengaged position when released. 4. Never operate with a mi_sing or damaged discharge

damage or personal injury caused by a ricochet. 11. Never direct discharge at children, bystanders and pets or allow anyone in front of the machine. 12. DOnot overload machine capacity by attempting to clear snow at too fast of a rate. 13. Never operate this machine without good visibility or light. Always be sure of your footing and keep a firm hold on the handles. Walk, never run. 14. Disengage power to the auger/impeller when transporting or not in use. 15. Never operate machine at high transport speeds on slippery surfaces. Look down and behind and use care when in reverse. 16. If the machine should start to vibrate abnormally, stop the engine, disconnect the spark plug and ground it against the engine. Inspect thoroughly for damage. Repair any damage before starting and operating. 17. Disengage all clutch levers and stop engine before you leave the operating position (behind the handles). Wait until the augedimpeller comes to a complete stop before unclogging the discharge chute, making any adjustments, or inspections. 18: Never put your hand in the discharge or collector openings. Always use a clearing tool to unclog the discharge opening. 19. Use only attachments and accessories approved by the manufacturer (e,g. wheel weights, tire chains, cabs etc.). 20. If situations occur which are not covered in this manuaI, use care and good judgment, Contact your dealer or telephone 1-800-800-7310 for assistance and the name of your nearest servicing dealer. MaintenanceAndStorage 1. Never tamper with safety devices. Check their proper operation regularly. 2. Disengage all clutch levers and stop engine. Wait until the augedimpeller come to a complete stop. Disconnect the spark plug wire and ground against the engine to prevent unintended starting before cleaning, repairing, or inspecting. 3. Check bolts, and screws for proper tightness at frequent intervals to keep the machine in safe working condition, Also, visually inspect machine for any damage. 4. Do not change the engine governor setting or over-speed the engine. The governor controls the maximum safe operating speed of the engine. 5. Snow thrower shave plates and skid shoes are subject to wear and damage. For your safety protection, frequently check all components and replace with original equipment manufacturer's (O,EM.) parts only, "Use of parts which do not meet the original equipment specifications may lead to improper performance and compromise safety!" 6, Check clutch controls periodically to verify they engage and disengage properly and adjust, if necessary. Refer to the adjustment section in this operator's manual for instructions. 7. Maintain or replace safety and instruction labels, as necessary. 8. Observe proper disposal laws and regulations for gas, oil, etc. to protect the environment. 9. Prior to storing, run machine a few minutes to clear snow from machine and prevent freeze up of auger/impeller. 10. Never store the machine or fuel container inside where there is an open flame, spark or pilot light such as a water heater, furnace ,clothes dryer etc. 11. Always refer to the operator's manual for proper instructions on off-season storage. YourResponsibility: Restrict the use of this power machine to persons wbo read, understand and follow the warnings and instructions in this manual and on the machine. The safety labels are given below for your reference. o o

shipping crate. • Set panel aside to avoid tire punctures or personal injury. • Remove and discard plastic bag that covers unit. • Roll unit out of crate. ° Check crate thoroughly for loose parts before discarding. LooseParts The snow thrower is shipped with following loose parts in the carton. See Figure 1 for illustration, description of item and part number. Please remove all loose parts from the carton before discarding it. _ ",,-.\, Shear Bolts j2 (710-0890A) and Bolts Please note that these shear bolts and hex lock nuts are not meant for initial assembly of the equipment. If the snow thrower hits a foreign object or ice jam, the bolts, securing the auger shaft, may shear, Use these two shear bolts and nuts as replacement then. Store these in a safe place until needed. Fiigure 2 Handle Panel Raise the upper handle assembly in the direction shown in Figure 2. Make sure that the upper handle locks into position ovar the lower handle. [_ "-._. Hex Lock Nuts Upper (712-0429) Carriage Bolt [_} -_" Tighten these wing nuts Figure 1 IMPORTANT:NEVER replace the auger shear bolts with standard hex bolts. Any damage to the auger gearbox or other components from standard hex bolts will not be covered by your snow thrower's warranty. AssemblingHandle NOTE: Reference to the left or right side of the snow thrower in this manual is observed from the operator's position. IMPORTANT: Make any final adjustments, as instructed later on in this section, before operating your snow thrower. Failure to follow these instructions may cause damage to the snow thrower. • Remove the lower plastic wing nut, cupped washer and carriage bolt from each side of the lower handle. See Figure 2. Wing Nut Cupped Washer Lower Handle Figure 3 • Look at lower rear of snow th rower frame to be sure all cables are aligned with cable roller guides. • Secure the upper handle and lower handle with the two plastic wing nuts, cupped washers and carriage bolts previously removed. Attach these hardware on the lower hole in the handles. See Figure 3. • Tighten the two wing nuts already in place on the upper holes and secure the handles firmly. See Figure 3. 5

down over the end of the lower shift rod, See Figure 4. Tap the connector until it locks on the lower shift rod. NOTE: If th, ! connector is not properly assembled, the shift rod will _ivot and you will not be able to change direction or; _eed of the snow thrower, _Connector Lower Shift Rod \ Upper Shift Rod Note: Cut-out view of lower handle shown for clarity. Figure 4 If not already attached, slip the cables that run from the handle panel to the chute into the cable guide located on top of the engine. See Figure 5, Cable Guide Figure 5 If for shipping purposes, the headlight wire was left unattached to the alternator lead, follow the steps below to attach it now: • Unwrap the headlight wire which is attached to the headlight beneath the handle panel. Wind the headlight wire around the right side of the lower handle until excess slack is removed, See Figure 6. • Plug the wire from the headlight into the alternator lead coming from the right side of the engine, underneath the fuel tank. See Figure 6 inset. Figure 6 FinalAdjustments Traction ControlandShiftLever To check the adjustment of the traction control and shift lever, proceed as follows: • Move the shift lever into sixth (6) position. • With traction control released, gently push the snow thrower forward, then pull it back. The machine should move freely. • Engage traction control, and try to move the machine both forward and back. You should experience resistance. • Move the shift lever into the fast reverse (R2) position and repeat the previous two steps, If you experienced resistance either when repositioning the shift lever from 6 to R2 or when attempting to move the machine with the traction control released, adjust the traction control immediately. To adjust, proceed as follows: • Loosen the jam nut on the traction control cable and UNTHREAD the cable one full turn. - Recheck adjustment. • Retighten the jam nut to secure the cable when correct adjustment is reached. NOTE: For more details, refer to Traction Control Adjustment on page 12. AugerControl Check the adjustment of the auger control as follows: • Push clown on the auger control until the small rubber bumper contacts the upper handle. There should be slack in the auger control cable. • Release the auger control. The cable should be straight. Make certain you can depress the auger control against the left handle completely. If adjustment is necessary, proceed as follows: • Loosen the jam nut and th read the cable in (for less slack) or out (for more slack) as necessary. See Figure 7. 6

• Loosen, but do not n.-.move,the two hex nuts which fasten the skid shoe to the auger housing, ° Raise or lower the sldd shoe to desired position. • Retighten the hex nuts loosened earlier. ° Repeat on the other side of the snow thrower. "Z" End _ Jam Nut J Auger Control Cable Figure 7 • Recheck adjustment; readjust as necessary and tighten the jam nut. SkidShoe The space between the shave plate and the ground can be adjusted by repositioning the skid shoes. For close snow removal, place skid shoes in the low position. Use middle or high position when area to be cleared is uneven. See Figure 8. When operating on gravel, always put skid shoes in the high position. Shoes _Hex Nuts Figure 8 NOTE: Make certain the entire bottom surface of skid shoe is against the ground to avoid uneven wear on the skid shoes.

Know how to stop the machine and disengage them quickly. • See Figure 9 to identify all the controls described below. Traction Drive / Auger Control Lock \ Auger Control Electric Chute-Rotation Switch Heated Handles Switch Gas Tank Discharge Chute Auger \ Track Skid Shoe hute Left Turn Tilt Right Turn Trigger Control Trigger Traction Control The traction control is located on the right handle. Squeeze traction control to engage the wheel drive; release to stop. AugerControlLock The traction control lever also locks the auger control so that you can turn the chute directional control without interrupting snow throwing. If the auger control lock is engaged along with the traction control, you can release the auger drive clutch on the left handle and still keep the augers engaged. When the auger control lock is released, you can release the traction control to stop both the augers and the wheel drive. AugerDrive The auger drive clutch is located on the left handle. Squeeze the clutch grip to engage the augers. Release to stop the snow throwing action, Traction drive clutch must also be released in order to stop auger, Figure 9 Shift Lever The shift lever is located in the center of the handle panel and is used to determine both ground speed and direction of travel. It can be moved into any of eight positions for speed and direction variations as described below. Always release traction control before changing speeds. Forward: Your snow thrower has six forward (F) speeds. Position number one (1) is the slowest. Position number six (6) is the fastest. Reverse: Your snow thrower has two reverse (R) speeds. R1 is the slower, while R2 is faster. ElectricChute-RotationSwitch The electric chute-rotation switch is located on the left side of the snow thrower handle panel. To change the direction in which discharged snow is thrown, proceed as follows: 8

counterclockwise. • Push the toggle switch to the right to rotate the chute clockwise. IMPOFrI'ANT:Release the switch once the chute has completed its rotation cycle in either direction. Failure to do so can result in damage to the electric chute motor and/or its drive gear. Turn Trigger The left and right turn triggers are located on the underside of the handles and are used to assist in steering the snow thrower. Squeeze the right trigger when turning right; squeeze the left trigger when turning left. Operate snow thrower in open areas until you become familiar with these controls, "Stay Warm" HandlesSwitch This switch is located on the right side of the snow thrower handle panel. To activate the heated handles, toggle the switch to the right to generate heat within the handles. Toggle the heated handles switch to the left into the OFF position after using the snow thrower. NOTE: The heated handles are a compliment to, not a substitute for, proper cold weather outerwear for hands. It is recommended that the user wear adequate winter protection for hands (like gloves/mittens) when operating this snow thrower, ChuteTilt Control The distance snow is thrown can be changed by adjusting the angle of the chute assembly. Move the chute tilt control forward to decrease the distance, and towards the rear to increase the distance. DischargeChute The angle of the discharge chute controls the distance that the snow is thrown. Tilt the discharge chute up for greater distance; tilt down for less distance. SkidShoe The position of the skid shoe is determined by the condition of the ground from where snow has to be removed. Refer to page 7 for details. FuelShut-offValve(if equipped) The fuel shut-oft valve, if so equipped, is located under the fuel tank. This valve controls fuel flow from the tank, Always make sure it is in the open (vertical) position before attempting to start the engine. See Figure 10. Headlight The headlight is on whenever the engine is running, Throttle Control The throttle control is located on the engine, it regulates the speed of the engine. See Figure 10. SafetyIgnition Key The safety ignition key must be fully inserted in the switch before the unit will start. Remove key when snow thrower is not in use, Do not attempt to turn the key. See Figure 10. Primer Switch Box Starter Button Control Starter Handle ?°se_/L_ "_.- Fuel Shut-Off Op_n-F _1 Valve (if equipped) Figure 10 Track LockLever The track lock lever is located on the right side of the snow thrower and is used to select the position of the housing and the method of track operation. Move the lever to the right, then ronsard or backward to one of the three positions as described below. See Figure 11. Transport: Raises the front end of the snow threwe rfor easy transport. Using proper caution, this position may also be used on many gravel driveways to clear snow while leaving gravel undisturbed. Normal Snow: Allows the tracks to be suspended independently for continuous ground contact. Packed Snow: Locks the front end of the snow thrower down to the ground for hard-packed or icy snow conditions. \ Packe¢ Figure 11

on the machine and in this manual before operating. • The spark plug wire was disconnected for safety. Attach spark plug wire to spark plug before starting. • Make certain the auger and drive clutch levers are in the disengaged (released) position. • Check oil and gasoline level and add if necessary. Follow related instructions in the seperate engine manual packed with your snow thrower. WARNING: Use extreme care when handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel the machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes and other sources of ignition. ToStartEngine • Make certain the fuel cut-off valve, if so equipped, is in OPEN position. • Move throttle control up to FAST position. Insert ignition key into slot. Make sure it snaps into place. Do not turn key. NOTE: Engine wilt not start unless ignition key is inserted into ignition slot in carburetor cover. ElectricStarter A WARNING: The electric starter is equipped with a grounded three-wire power cord and plug, and is designed to operate on 120 volt AC household current. It must be used with a properly grounded three-prong receptacle at all times to avoid the possibility of electric shock. Fellow all instructions carefully prior to operating the electric starter. • Determine that your house wiring is a three-wire grounded system. Ask a licensed electrician if you are not certain. • If your house wiring system is not a three-wire grounded system, do not use this electric starter under any conditions. • If your home electrical system is grounded, but a three-hole receptacle is net available, one should be installed by a licensed electrician before using the electric starter. • If you have a grounded three-prong receptacle, proceed as follows. • Rotate choke knob to OFF position. • Connect power cord to switch box on engine. Plug the other end of power cord into a three-prong 120- volt, grounded, AC receptacle. • Push starter button to crank engine. As you crank the engine, move choke knob to FULL choke position. . When engine starts, release starter button, and move choke gradually to OFF. If engine falters, move choke immediately to FULL and then gradually to OFF. • When disconnecting the power cord, always unplug from the three-prong receptacle first, and then from the snow thrower. RecoilStarter • Rotate choke knob to FULL choke position (cold engine start). • If engine is warm, place choke in OFF position instead of FULL. * Push primer button two or three times for cold engine start. o If engine is warm, push primer button only once. NOTE: Always cover vent hole in primer button when pushing. Additional priming may be necessary for first start ff temperature is below 15 degrees Fahrenheit. • Grasp starter handle and pull rope out slowly, until it pulls slightly harder. Let rope rewind slowly, • Pul! starter handle rapidly. Do not allow handle to snap back. Allow it to rewind slowly while keeping a firm hold on the starter handle. • As engine warms up and begins to operate evenly, rotate choke knob slowly to OFF position. If engine falters, return to FULL choke, then slowly move to OFF position, ToStopEngine • To stop engine, push the throttle control lever to the stop position. Remove the ignition key. Do not turn key. Disconnect the spark plug wire from the spark plug to prevent accidental starting while equipment is unattended. To preventpossiblefreeze-up of starter: • Run engine for a few minutes before stopping to help dry off any moisture on the engine. • Electric Starter: Connect power cord to switch box on engine, then to 120 volt AC receptacle. With the engine running, push starter button and spin the starter for several seconds. The unusual sound made by spinning the starter will not harm engine or starter. Disconnect the power cord from receptacle first, and then from switch box. 10

rope with a rapid, continuous full arm stroke three or four times. Pulling the starter rope will produce a loud clattering sound, which is not harmful to the engine or starter. • Wipe all snow and moisture from the carburetor cover in the area of the control levers. Also, move control levers back and forth several times. Leave throttle control lever in the STOP or OFF position. Leave choke control in the FULL choke position. • Remove ignition key and disconnect spark plug wire. Do not turn key. IMPORTANT: Do not Iose ignition key. Keep it in a safe place, Engine will not start without the ignition key. ToEngageTrackDrive • With the engine running near top speed, move shift lever into one of the six forward positions or two reverse positions. Select a speed appropriate for the snow conditions that exist. NOTE: Use the slower speeds until you are familiar with the operation of the snow thrower. • Squeeze the traction control against the right handle and the snow thrower will move. Release it and the drive motion will stop. IMPORTANT: Never move shift lever without first releasing the traction control. Doing so will cause premature wear to drive system's friction whee! rubber. ToEngageAugers TO engage the augers and start snow throwing, squeeze the auger control against the left handle. To disengage augers, release both the auger control and the traction control, if engaged. NOTE: The auger control can also be locked so that you can turn the chute directional control without interrupting snow throwirtg. Refer to page 8 for details. OperatingTips NOTE: Allow the engine to warm up for a few minutes. The engine will not develop full power until it reaches operating temperature. _ WARNING: The temperature of the muffler and the surrounding areas may exceed 150_F. Avoid these areas. • For the most efficient snow removal, remove snow immediately after it f_lls. • Discharge snow downwind whenever possible. • Slightly overlap each previous path. • Set the skid shoes 1/4" below the shave plate for normal usage. The skid shoes may be adjusted upward (to bower the shave plate) for hard-packed snow. Adjust downward (to raise the shave plate) when using on gravel or crushed rock. • Prevent possible freeze-up of the starter by following the steps d_=scribedearlier. • Clean snow thrower thoroughly after each use. 11

while engine is running. TractionControl Refer to Final Adjustments on page 6 to adjust traction control, if you want to check further for correct adjustment, proceed as follows: WARNING: Drain the gasoline out of your snow thrower's engine, and place a piece of plastic film under the gas cap to avoid spillage before beginning the job. • Tip the snow thrower forward, allowing it to rest on the auger housing. • Remove frame cover underneath the snow thrower by removing six self-tapping screws. • With traction control released, make sure there is clearance between the friction wheel and the drive plate in all positions of the shift lever. • With traction control engaged, make sure friction wheel contacts the drive plate. See Figure 12. ChuteAssembly Refer to Chute Tilt Control on page 9, SkidShoe The space between shave plate and ground can be adjusted by raising or lowering the skid shoes. Refer to Skid Shoe Adjustment on page 7. ShiftRod To adjust the shift rod, proceed as follows. • Remove the hairpin clip and slide the connector up to separate the upper shift rod from the lower shift rod. See Figure 13. Hairpin Shift Lever Clip Fiat Hex Clutch Rod Connecto= Upper Shift Rod Hairpin Clip "Drive Plate Lower Shift Rod Figure 12 If either or both are lacking, adjust traction control as instructed below: • Loosen the jam nut on the traction drive cable and thread the cable in or out as necessary. • Retighten the jam nut to secure the cable when correct adjustment is reached. • Reassemble the frame cover. NOTE: If you placed plastic film under the gas cap, remove it now. AugerControl Refer to details on page 6 to adjust the auger control. Figure 13 • Place shift lever in sixth (6) position. • Rotate the shift arm counterclockwise (from the operator's position) as far as it will go. • Thread the upper shift rod downward until the elbow on its lower end aligns with the hole in the lower shift rod. • Reconnect the upper shift rod to the lower shift rod by reinserting the hairpin clip. Slide the connector back into place. IMPORTANT: Check for correct adjustment of the shift rod as instructed on page 6, before operating the snow thrower. 12

disengage all clutch levers and stop engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Lubrication Gear Shaft Lubricate the gear shaft with 6-in-1 grease (part number 737-0170) at least once a season, or after every 25 hours of operation. Refer to Figure 12. IMPORTANT: Keep all grease and oil off the rubber friction wheel and aluminum drive plate. Engine Refer to the seperate engine manual packed with your unit for all engine lubrication instructions. AugerShaft • At least once a season, remove shear bolts from auger shaft. Oil or spray lubricant inside shaft. See Figure 14. Also lubricate the plastic auger bearings at least once a season. Lube auger shaft here Figure 14 Drive andShifting Mechanism At least once a season or after every 25 hours of operation, remove rear cover. Lubricate any chains, sprockets, gears, bearings, shafts, and shifting mechanism at least once a season. Use engine oil or a spray lubricant, Avoid getting oil on rubber friction wheel and aluminum drive plate. ElectricChuteRotationMotor The gear on the electric chute-rotation motor and the base of the discharge chute itself should be lubed with multi-purpose automotive grease once a season. See Figure 15. Lube gear and chute base here % Figure 15 Gear Case The gear case is lubricat,_=dwith grease at the factory and does net require checking. If disassembled for any reason, lubricate with twe ounces of Shell Alvania TM grease EPR00, part number 737-0168. Before reassembling, remove old sealant and apply Loctite TM 5699 or equivalent. IMPORTANT: Do not overfill the gear case. Be sure the vent plug is free of grease in order to relieve pressure. Traction Control/ AugerControlLock The cams on the ends of the control rods which interlock the traction driw.=and auger drive clutches must be lubricated at lea.,_tonce a season or every twenty five hours of operation. The cams can be accessed beneath the handle panel. See Figure 16. Use a multi-purpose automotive grease. __dle Panel b/_ca m s here Figure 16 13

come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Augers The augers are secured to the spiral shaft with two shear belts and hex lock nuts. See Figure 17. If you hit a foreign object or ice jam, the snow thrower is designed so that the bolts may shear. T-_ Shear Bolts _-[ ii i Figure 17 If the augers do not turn, check if the bolts have sheared. Two replacement shear bolts and hex tock nuts have been provided with the snow thrower. Refer to Loose Parts on page 5. For future use, order kit number OEM-710-0890. IMPORTANT: NEVER replace the auger shear bolts with standard hex bolts. Any damage to the auger gearbox or other components, as a result of doing so, will NOT be coved by your snow thrower's warranty. ShavePlateandSkidShoes • The shave plate and skid shoes on the bottom of the snow thrower are subject to wear. They should be checked periodically and replaced when necessary. • To remove skid shoes, remove the four carriage bolts, belleville washers and hex nuts which attach them to the snow thrower. Reassemble new skid shoes with the hardware earlier removed. Make certain the skid shoes are adjusted to be level. • To remove shave plate, remove the carriage bolts, belleville washers and hex nuts which attach it to the snow thrower housing. Reassemble new shave plate, making sure heads of the carriage bolts are to the inside of the housing. Tighten securely. BeltRemovalandReplacement AugerBelts • Remove the plastic belt cover on front of the engine by removing the two self-tapping screws. See Figure 18. Self-Tapping Screws t Belt Cover Auger Housing Figure 18 • Drain the gasoline from the snow thrower, or place a piece of plastic film under the gas cap. • Tip the snow thrower up and forward so that it rests on its auger housing. • Remove six self-tapping screws from the frame cover underneath the snow thrower. • Roll the front and rear auger belts off the engine pulley. See Figure 19. Wheel Pulley Auger Drive Wheel Pulley _ Drive Belt Idler Pulley Idler Pulley Drive Belts Figure 19 14

auger housing. See Figure 20. • Back out the stop bolt until the support bracket rests on the auger pulley. See Figure 21, NOTE: It may be necessary to loosen the six nuts that connect the frame to the auger housing to aid in belt removal. • Lift the rear auger belt from the auger puUey, and slip belt between the support bracket and the auger pulley. See Figure 20. Repeat this step for the front auger belt. * Replace both auger drive belts. Friction Wheel- Drive Platl \ Suppo_ Rear Auc Belt Auc Belt Auger Pulley Au_ler Bracket Spring Housing Spring Figure 20 NOTE: If you placed plastic film under the gas cap, be certain to remove it before operating the snow thrower. Drive Belt • FoIIow the first four steps of instructions to service the auger belts. • Pull idler pulley up, and lift belt off engine pulley and friction wheel disc. See Figure 19. • Back out the stop bolt until the support bracket rests on the auger pulley. See Figure 21, • Slip belt between friction wheel and friction wheel disc. See Figure 21. Remove and replace belt. • Reassemble the parts removed earlier. NOTE: The support bracket must rest on the stop bolt after the new belt has been assembled, See Figure 21. Figure 21 ChangingFrictionWheelRubber The rubber on the frictien wheel is subject to wear and should be checked after 25 hours of operation, and periodically thereafter. Replace the friction wheel rubber if any signs of wear or cracking are found. • Drain the gasoline from the snow thrower, or place a piece of plastic under the gas cap.Tip the snow thrower up and forward, so that it rests on the housing. • Remove six self-tapping screws from the frame cover underneath the snow thrower. Figure 22 Using a wrench to hoId the shaft, loosen, but do not completely remove, the hex bolt and bell washer on the left end of shaft. See Figure 22. Lightly tap the hex nut to dislodge the ball bearing from the right side ol frame before removing the hex nut and bell washer from left end of shaft. Move the shaft to the right and slide the friction wheel assembly from the shaft. 15

assembly (three from each side). Remove the friction wheel rubber from between the friction wheel plates. See Figure 23. Screws _ FrictionWheel Rubber / scrows Friction Wheel Plates Figure 23 Reassemble new friction wheel rubber to the friction wheel plates and hub, tightening the six screws in rotation and with equal force. Position the friction wheel assembly up onto the pin of the shift rod assembly, and slide the shaft through the assembly. Reassemble the bearing and the shaft and secure the frame cover. Axle Shaft _ Shift Rod Assy Pin / Drive Shaft Wheel Assembly Figure 24 NOTE: If you placed plastic film under the gas cap, be certain to remove it. Engine • Refer to the engine manual for all engine related service procedures. SECTION8: OFF-SEASONSTORAGE WARNING: Never store engine with fuel in tank indoors or in poorly ventilated areas, where fuel fumes may reach an open flame, spark or pilot light as on a furnace, water heater, clothes dryer or other gas appliance. • If unit is to be stored over 30 days, prepare engine for storage as instructed in the engine manual. • Remove all debris from the exterior of equipment. • Follow lubrication recommendations on page 13. • Always store the snow thrower in a clean, dry area. NOTE: When storing any type of power equipment in an unventilated or metal storage shed, care should be taken to rustproof the equipment. Using a light oil or silicone, coat the equipment, especially any chains, springs, bearings and cables. 16

Engine runs erratic I Loss of power Engine overheats 1, Fuel tank empty, or stale fuel, 2. Blocked fuel line. 3. Choke not in ON position 4. Faulty spark plug. 5. Safety key not in ignition switch on engine, 6. Spark plug wire disconnected. 7. Primer button not being used propedy, 8. Fuel shut-off valve closed. 1. Unit running on CHOKE. 2, Blocked fuel line or stale fuel. 3. Water or dirt in fuel system. 4. Carburetor out of adjustment. 1. Spark plug wire loose. 2. Gas cap vent hole plugged. 3. Exhaust port plugged. 1. Carburetor not adjusted properly. Excessive vibration 1. Loose parts or damaged auger, 1, Unit fails 1. Traction control cable in need of adjustment. 1. to propel itself 2. Drive belt loose or damaged, 2. Unit fails 1. Discharge chute clogged. 1. to discharge snow 2. Foreign object lodged in auger. Auger control cable in need of adjustment. Auger belt loose or damaged, Shear bolts sheared. Loose electrical connections. Blown Fuse. 1. Fill tank with fresh gasoline, 2. Clean the fuel line. 3. Move switch to ON position 4. Clean, adjust gap or replace. 5. Insert the key fully into the switch. 6. Connect spark plug wire. 7. Refer to the engine manual. 8, Open fuel shut-off valve. 1. Move choke lever to OFF position. 2, Clean fuel line; fill tank with clean, fresh gasoline. 3. Drain fuel tank and carburetor. Refill with fresh fuel. 4. Refer to the engine manual. 1. Connect and tighten spark plug wire. 2. Remove ice and snow from gas cap. Be certain vent hole is clear. 3. Refer to the engine manual. 1. Refer to the engine manual or have the carburetor adjusted by an authorized engine service dealer. Stop engine immediately and disconnect spark plug wire. Tighten all bolts and nuts. If vibration continues, have unit serviced by an authorized service dealer. 2. Adjust traction control cable. Refer to pages 6 and 12. Replace drive belt. Refer to page 14. Stop engine immediately and disconnect spark phJg wire. Clean discharge chute and inside of auger housing. Stop engine immediately and disconnect spark plug wire. Remove object from auger, Refer to page 6 for adjustment instructions. Refer to page 14, Replace shear bolts, Use new shear bolts. 3. 3. 4, 4, 5. 5, Electric chute fails to 1. 1. Make sure all connections are tight and fully turn installed. 2. 2. Replace with #5A fuse. The fuse is under handle panel near switch connector. Electric chute turns in 1. The switch connector is installed backwards 1, Unplug the switch connector under the opposite direction of handle panel. Turn connector 180° and the switch reconnect. Heated grips are not 1. Loose electrical connections, 1, Under the handle panel, check connection; creating heat from the handles to the wiring harness, 2. Blown fuse. 2, Replace with #5A fuse. The fuse is under handle panel near switch connector. 3. Faulty grip. If one heated grip fails, both grips 3. Have the grips checked at an authorized will not function, service cealer. 17

Idler Wheel Assembly Friction Wheel Disc Hub Assembly Track Pivot Rod Assembly Shift Rod Assembly Support Bracket: Friction Wheel Axle Assembly: Idler Frame Assembly Handle Assembly: Track Lock Wheel Ass'y.: Fric. WhL Bearing Hex Screw: 5/16-24 x 0.75" Hex Screw: 3/8-24 x 1.5" Hex Screw: 5/16-18 x .625" TT Screw: 1/4-20 x 0,5 _ TT Screw: 5/16-18 x 1.0" TT Screw: 5/16-18 x 0.625" Hex Bolt: 5/16-18 x 1.0" TT Screw: 1/4-20 x 1.25" ITT Screw: 1/4-20 x 0.75" I Eye Bolt TT Screw: 1/4-20 x 0.625" Ref. No. 41. 42. 43. 44, 45. 46. 47, 48. 49. 50. 51. 52. 53, 54. 55. 56. 57, 58. 59. 60. 61. 62. 63. 64. 65. Part No, i732-0209 i732-0264 i736-0105 i736-0160 !736-0178 !736-0242 736-0270 736-0272 736-0287 !736-0406 _737-0170 737-0318 738-0140 _738-0924 741-0339 741-0563 741-1111 746-0897 746-0898 746-0948 748-0190 748-0234 748-0353A 750-0547 750-0903 Part Description Extension Spring Extension Spring Spring Washer Flat Washer Flat Washer BeIeville Washer Bell Washer Fiat Washer Flat Washer Flat Washer Lubricant Grease Shoulder Screw Carriage Screw Flange Bearing Ball Bearing Hex Flange Bearing Clutch Cable: Auger C,lutch Cable: Drive _;teering Cable Spacer _;houlder Spacer Lift Shaft Drive S;pacer Split Spacer Actuator Shaft Hex Shaft: Drive Hex Lock Nut Jam Lock Nut Hex Lock Nut Jam Nut Chain Sprocket Chain lCotter Pin Track Housing Grip Adhesive: Loctite TM Track Track Wheel 66. 67. 68. 69. 70. 71. 72, 73. 74, 75. 76, 77. 78. 750-0904 750-0909 _750-0995 750-0997 756-0625 784-559O 784-5609 78_5639 784-5642 784-5648 784-5687A 784-5688 784-5689A Split Spacer Spacer Spacer Spacer Cable Roller Shift Bracket: Frame Bracket: Steering Cable Plate: Track Side Plate: Track Lock out Frame Cover Cable Guide Bracket: Auger Clutch Cable Guide Bracket: Drive Clutch Cable Guide Bracket: Auger Clutch Front Support 19

Flat Idler Auger Idler Arm Hex Cap Screw 3/8-24 x 1.50 Shoulder Screw Flat Washer Extension Spring Hex Nut 5/16-18 Hex Nut 5/16-18 Lock Washer 5/16 iHousing Ball Bearing Carriage Bolt 5/18-18 x .75 Chute Reinforcement 28" Housing Assembly Grease: "Arctic" Lock Nut 5/16-18 Bell Washer Chute Adapter Hex Lock Nut 1/4-20 -Ref. No, 21. 22. 23. Part No= 736-0463 784-5618 710-0703 24, 710-0604 25. 1736-0169 26. 712-0798 Description Flat Washer Beadng Housing w/Fitting Carriage Screw 1/4-20 x .75 Hex Washer Screw 5/16-18 Lock Washer 3/8 Hex Nut 3/8-16 27, 28, 29, 33. 34, 35. 36. 37. 38. 39. 40. 41, 42, 741-0245 784-5580 736-0242 784-5582A 710-0260 684-0065 715-0114 618-0122A 605-5196A 736-0188 i741-0493A i605-5197A 1710-0890A Hex Flange Bearing Skid Shoe Bell Washer 28" Shave Plate Carriage Bolt 5/16-18 x .62 iImpeller Assembly Pin 2E" Gear Assembly Spiral 28" RH Fl_t Washer FI;_nge Bushing Spiral 28" LH Shear Bolt 5/16-18 x 1.5 21

Carriage Bolt: 5/16-18 x 1.5" Carriag Screw 5/16-18 x 2.25 TT Screw 1/4-20 x 1.0" Oval C-Sunk AB Screw Hex Screw 5/16-18 x 0.75" Ferrule Hex Nut Hairpin Clip Wing Nut Heated Grip Lock Washer Flat Washer Saddle Washer Upper Shift Rod Lower Shift Rod Lower Handle Upper Handle RH: L Style Upper Handle LH: L Style Shift Rod ConneCtor Harness Assembly: Chute Crank Handle Engagement RH Handle Engagement LH Special Screw Sems Nut Hex Nut Lock Ring: Toggle Switch Shift Knob Lamp Housing Toggle Switch: 2 Pos, Dbl. Throw Toggle Switch: 2 Pos., SngL Throw Halogen Lamp Diode Handle Panel Fiat Washer Headlight Retainer Handle Panel Assembly w/Tilt Hex Screw: Special TT Screw: 1/4-20 x 0.5" Clevis Pin Jam Lock Nut Hex Lock Nut Hairpin Clip Compression Spring Compression Spring Torsion Spring R,;f. NO. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78. 79. 81. 82. 83. 84. 85. 86. 87. 88. 89. 90. 91. 92. 93. 94. Part No, 735-0199A 736-0105 736-0509 746-0778 747-0877 748-0362 748-0363 784-5619A 784-5679 784-5680 784-5661 784-5682 710-1233 712-0127 728-0157 746-0950 732-0705 618-0419 629-0937 710-0262 710-0451 710-0599 710-0602 710-0805 710-0817 710-0896 710-3008 712-0429 712-3010 712-3027 724-0249 731-0851A 731-1300A 731-1313C 731-1320 731-2279 736-0159 i736-0242 736-0606 746-0896 i746-0901 1750-1232 i782-0599 i764-5594 i784-5604 F Part Description Rubber Bumper Spring Washer Special Washer Z Fitting Cam Rod Cam Handle Lock Pawl: Handle Lock Shift Handle Handle Support Bracket 5/8: LH Handle Support Bracket: RH Handle Support Bracket 3/8: LH Handle Support Bracket 3/8: LH Oval C-Sunk Machine Screw Flange Weld Nut Cable Tie Control Trigger Cable Control Wire Gear Assembly: Ring: Chut Rotatn. Harness Assembly: Lower Carriage Bolt: 5/16-18 x 1.5" Carriage Bolt: 5/16-18 x ,750" TT Screw 1/4-20 x 0.5" 1-1"Screw 5/16-18 x 1.0" Hex Screw 5/16-18 x 1.5" TT Screw 5/16-18 x 1.0" AB Screw 1 ? ,216/1618 ,, Hex Nut 5/16-18 Flange Lock Nut Electric Motor: Chute Crank Range Keeper Lower Chute Cable Guide: Chute Tilt Upper Chute Motor Cover 5/16 Washer Beleville Washer Special Washer Chute Cable Cable: Chute Deflector w/Clip Spacer Motor Bracket: Chute Rod ,Sable Bracket Chute Tilt Handle 23

18 7 6 13 i !/ 25 2O IMPORTANT: For a proper working machine, use Factory Approved Parts. V-BELTS are specially designed to engage and disengage safely. A substitute (non OEM) V-Belt can be dangerous by not disengaging completely 24

Belt Cover Extension Spring Hex Screw 5/16-24 x .75 Hex Cap Screw 3/8-16 x 1.25 Drive Clutch Idler Bracket Shoulder Spacer Pulley Half V-Belt Pulley Half BelI Washer Hex Cap Screw 1/4-28 x .50 Flat Idler Lock Hex Cap Screw 5/16-24 Lock Jam Nut 3/8-16 Pulley Half Bell Washer Flat Washer BeIt Auger Pulley Flat Washer 3/8 x 1.25 OD Bell Washer Hex Cap Screw 3/8-24 Adapter Pulley Hex Screw 3/8-16 x 1.0 Extension Cord Electric Start 25

LH Reducer Housing Hex Screw 1/4-20 x .75 Spiral Axle: 28" Key Pin-Spiral Worm Gear, 20T Worm Shaft Thrust Collar Grease Plug Grease Seal Flat Washer .76 x 1,5 x .030 Flat Washer .508 x 1.0 x .020 Flat Washer .76 x 1.5 x .060 Flange Bearing ,75 x 1.0 x .89 Flange Bearing .75 x 1.0 x ,925 Complete Assembly: 28" 26

ModelH763 777D02982 777120711 777120722 777_20324 777S30514 777D02976 777DO3166 777S3o5!1 777D00179 777D02975 ! 777DO13_1 27

purchased and used in the United States, its possessions and territories. MTD warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in material or workmanship. This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator's Manual furnished with the product, and has not been subject to misuse, abuse, com- mercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natural disaster. Damage resulting from the installation or use of any accessory or attachment not approved by MTD Products Inc. for use with the product(s) covered by this manual will void your warranty as to any resulting damages. Normal wear parts or components thereof are subject to separate terms as follows: All normal wear part or compo- nent failures will be covered on the product for a period of 90 days regardless of cause. After 90 days, but within the two year period, normal wear part failures will be covered ONLY IF caused by defects in material or workmanship of OTHER component parts. Normal wear parts and compo- nents include, but are not limited to, belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow thrower skid shoes, shave plates and tires. Batteries are covered by a 90-day limited replacement warranty. HOW TO OBTAIN SERVICE: Warranty service is available, WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER. To locate the dealer in your area, please check for a listing in the Yellow Pages or contact the Customer Service Department of MTD PROD- UCTS INC by calling 1-800-800-7310 or writing to RO. Box 368022, Cleveland, Ohio 44136-9722. No product returned directly to the factory will be accepted unless prior written permission has been extended by the Customer Service Department of MTD PRODUCTS INC. This limited warranty does not provide coverage in the following cases: a. The engine or component parts thereof. These items carry a separate manufacturer's warranty. Please refer to the applicable manufacturer's warranty on these items. b. Routine maintenance items such as lubricants, filters, blade sharpening and tune-ups, or adjustments such as brake adjustments, clutch adjustments or deck adjustments; and normal deterioration of the exterior finish due to use or exposure. c. Log splitter pumps, valves and cylinders have a sepa- rate one year warranty. d. MTD does not extend any warranty for products sold or exported outside of the United States of America, its possessions and territories, except those sold through MTD's authorized channels of export distribu- tion. No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified. No other express warranty or guaranty, whether written or oral, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind MTD. During the period of the War- ranty, the exclusive remedy is repair or replacement of the product as set forth above. (Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.) The provisions as set forth in this Warranty provide the sole and exclusive remedy arising from the sales. MTD shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute or replacement lawn care ser- vices, for transportation or for related expenses, or for rental expenses to temporarily replace a warranted product. (Some states do not allow the exclusion or limita- tion of incidental or consequential damages, so the above exclusion or limitation may not apply to you.) In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold. Alteration of the safety features of the product shall void this War- rarity. You assume the risk and liability for loss, damage, or injury to you and your property and/or to others and their property arising out of the use or misuse or inability to use the product. This limited warranty shall not extend to anyone other than the original purchaser, original lessee or the person for whom it was purchased as a gift. How State Law Relates to this Warranty: This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.