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Federal laws apply on federal lands. A spark arrester 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.
SECTION 1: IMPORTANT SAFE OPERATION PRACTICES WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS 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 YOUR SNOW THROWER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
• If the snow thrower should start to vibrate abnormally, stop the engine and check immediately for the cause. Vibration is generally a warning of trouble. • Stop engine whenever you leave the operating position, before unclogging the collector/impeller housing or discharge guide, and making any repairs, adjustments, or inspections.
Operator’s Manual. The information on the model plate is very important if you need help from your dealer or the MTD customer support department. • Every snow thrower has a model plate. You can locate it by standing behind the unit in the operating position and looking down at the rear frame below the engine.
SECTION 4: CONTENTS OF HARDWARE PACK Lay out the hardware according to the illustration for identification purposes. Parts are illustrated approximately one-half size. Part numbers are shown in parentheses. (Hardware pack may contain extra items which are not used on your unit.) ATTACHING THE HANDLE ASSEMBLY Hex Bolts 5/16-18 x 1-3/4"...
SECTION 5: ASSEMBLY INSTRUCTIONS IMPORTANT: After assembly, service engine with gasoline, and check oil level as instructed in the separate engine manual packed with your unit. NOTE: All references to right or left side of the snow thrower are determined from behind the unit in the operating position.
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3. Insert curved end of the Z fitting into the top hole in the triangular metal tab on the auger control grip. See Figure 5. Auger Control Grip Figure 5 4. Place the auger control grip on top of the left handle.
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Figure 9 Cable Roller Hex Bolt Handle Guide 3/4” Long Bolt 1-3/4” Long Figure 10 ATTACHING SHIFT ROD (Hardware D) 1. Place the shift lever in the fastest forward speed position. 2. Models 642, 662: Rotate the shift arm assembly counter clockwise, as far as it will go.
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ATTACHING CLUTCH CABLES (Hardware D) 1. Thread the hex jam nuts all the way up the threaded portion of the “Z” ends. 2. Make certain all cables are in the grooves of the cable roller guides. The roller guides are located in the lower rear of the unit.
4. Place one flat washer on the end of the chute crank, then insert the end of the crank into the hole in the plastic bushing in the chute crank bracket. See Figure 17. Flat Washer Chute Crank Hairpin Clip Chute Crank Bracket Figure 17...
Adjusting The Skid Shoes The space between the shave plate and the ground can be adjusted by adjusting the skid shoes. 1. Place skid shoes in the low position to remove snow close to the ground. Place skid shoes in a higher position to remove snow from uneven ground.
Auger Drive Clutch Shift Lever Chute Crank Models 642 and 662 Figure 22 SECTION 7: OPERATION BEFORE STARTING WARNING: Observe all Warning Labels on the snow thrower prior to use. See Figure 1. Your snow thrower is shipped with oil; however, you must check the oil level before operating.
Follow all instructions carefully. 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.
TO ENGAGE DRIVE/AUGER 1. With the engine running near top speed, move shift lever into one of the FORWARD or REVERSE positions. Select a speed appropriate for the snow conditions that exist. Use the slower speeds until you are familiar with the operation of the snow thrower.
5. If adjustment is necessary, loosen the jam nut on the traction drive cable, and thread cable in or out as necessary. 6. Tighten the jam nut to secure the cable when correct adjustment is reached. Reassemble the frame cover with six self-tapping screws. Friction Wheel Gear...
SECTION 9: LUBRICATION WARNING: Disconnect the spark plug wire and ground against the engine before performing any lubrication or maintenance. ENGINE Refer to engine manual for all engine lubrication instructions. WARNING: When following instruct- ions in separate engine manual for draining oil, be sure to protect frame to avoid oil dripping onto transmission parts.
AUGER BELTS NOTE: It is necessary to remove both belts in order to change either one. If changing just one belt, be certain to check the condition of the other belt. 1. Remove the plastic belt cover on the front of the engine by removing the two self-tapping screws.
Friction Wheel Disc Drive Belt Support Bracket Stop Bolt Figure 32 CHANGING THE FRICTION WHEEL RUBBER The rubber on the friction 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.
SECTION 12: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Engine fails to start Fuel tank empty, or stale fuel. Blocked fuel line. Choke not in ON position Faulty spark plug. Key not in switch on engine. Spark plug wire disconnected. Primer button not depressed. Fuel shut-off valve closed (if so equipped).
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Engine and V-Belts 614E REF. PART 710-0599 Hex Washer Screw 1/4-20 x.5 731-1324 Belt Cover 732-0339 Extension Spring 710-0627 Hex Screw 5/16-24 x .75 710-3005 Hex Cap Screw 3/8-16 x 1.25 05896A Drive Clutch Bracket 748-0234 Shoulder Spacer 756-0985 Pulley Half 754-0343 V-Belt 756-0984...
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Engine and V-Belts E642E, E644E, E664F REF. PART 710-0896 Hex Washer Screw 1/4-14 x .625 731-1324 Belt Cover 831-00067 Electric Start 629-0071 Extension Cord 05896A Drive Clutch Bracket 710-3005 Hex Cap Screw 3/8-16 x 1.25 732-0710 Extension Spring 748-0234 Shoulder Spacer...
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Engine and V-Belts E6A4E, E662H REF. PART 710-0599 Hex Washer Screw 1/4-20 x .50 731-1324 Belt Cover 710-3005 Hex Cap Screw 3/8-16 x 1.25 732-0710 Spring Extension 710-0627 Hex Screw 5/16-24 x .75 05896A Drive Clutch Idler Bracket 748-0234 Shoulder Spacer 756-0987 Pulley Half 754-0430...
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MANUFACTURER’S For TWO YEARS from the date of retail purchase within the United States of America, its possessions and territories, the manufacturer will, at its option, repair or replace, for the original purchaser, free of charge, any part or parts found to be defective in material or workmanship. This warranty covers units which have been operated and maintained in accordance with the operating instructions furnished with the unit, and which have not been subject...