Table of Contents
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O
PERATOR'S
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
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
applicable 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 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.
M
ANUAL
Snow Thrower
Model 640
FORM NO
. 770-10167C.fm
(6/2001)
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Table of Contents
Related Manuals for MTD 640
Summary of Contents for MTD 640
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Page 1: Snow Thrower
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. -
Page 2: Table Of Contents
(Model Number) (Serial Number) MTD PRODUCTS INC CLEVELAND, OHIO 44136 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. -
Page 3: Important Safe Operation Practices
SECTION 1: IMPORTANT SAFE OPERATION PRACTICES 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 this machine. Failure to comply with these instructions may result in personal injury. -
Page 4: Maintenance And Storage
Never operate with a missing or damaged discharge chute. Keep all safety devices in place and working. Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas. Do not operate machine while under the influence of alcohol or drugs. -
Page 5: Assembling Your Snow Thrower
SECTION 2: ASSEMBLING YOUR SNOW THROWER Unpacking • Remove staples or break glue on the top flaps of the carton. Remove any loose parts included with unit (i.e., Operator’s Manual, etc). • Cut along corners and lay end of carton down flat. Remove packing material. -
Page 6: Final Adjustments
Final Adjustments Skid Shoes The space between the shave plate and the ground can be adjusted. For close snow removal, place skid shoes in the low position. Use middle or high position when area to be cleared is uneven. • Adjust skid shoes by loosening the four hex nuts and carriage bolts and moving skid shoes to desired position. -
Page 7: Know Your Snow Thrower
SECTION 3: KNOW YOUR SNOW THROWER WARNING: Be familiar with all controls and their proper operation. Know how to stop the machine and disengage them quickly. Operating Controls Traction/Auger Control Lock Discharge Chute Auger Figure 6 Shift Lever The shift lever is located in the center of the handle panel. -
Page 8: Operating Your Snow Thrower
SECTION 4: OPERATING YOUR SNOW THROWER Before Starting WARNING: Read, understand, and follow all instructions and warnings 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. Gas And Oil Fill-up WARNING: Use extreme care when... -
Page 9: Making Adjustments
To Stop Engine • To stop engine, 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 prevent starter freeze-up: • Run engine for a few minutes before stopping to help dry off any moisture on the engine. -
Page 10: Auger Control
• With the traction control released, there must be clearance between the friction wheel and the drive plate in all positions of the shift lever. • With traction control engaged, the friction wheel must contact the drive plate. See Figure 9. Friction Wheel Gear Shaft... -
Page 11: Maintaining Your Snow Thrower
SECTION 6: MAINTAINING YOUR SNOW THROWER WARNING: Before servicing, repairing, or inspecting, 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 Chute Directional Control •... -
Page 12: Servicing Your Snow Thrower
SECTION 7: SERVICING YOUR SNOW THROWER WARNING: Before servicing, repairing, or inspecting, 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. Augers The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. -
Page 13: Changing Friction Wheel Rubber
Friction Wheel Support Bracket Rear Auger Belt Front Auger Auger Pulley Idler Pulley Spring Figure 16 Drive Belt • Follow steps 1 through 4 of previous instructions. • Pull idler pulley up, and lift belt off engine pulley and friction wheel disc. See Figure 15. •... -
Page 14: Off-Season Storage
SECTION 8: OFF-SEASON STORAGE WARNING: Never store engine with fuel in tank indoors or in enclosed, 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. -
Page 15: Parts List
SECTION 10: PARTS LIST FOR MODEL 640 REF. PART DESCRIPTION 618-0123 RH Reducer Housing 618-0124 LH Reducer Housing 710-0642 Hex Screw 1/4-20 x .75 711-0908 Spiral Axle 24" 711-0909 Spiral Axle 26" 711-0910 Spiral Axle 28" 714-0161 715-0143 Pin-Spiral 717-0528... - Page 16 Model 640 ITEM #21 GOES TO GROUND WIRE OF LIGHT ASSEMBLY...
- Page 17 Model 640 REF. PART DESCRIPTION 625-0007 Light Ass’y, Top Mount 684-0008A Shift Arm Ass’y. 705-5204A Chute Crank Ass’y. 684-0036 Handle Ass’y - Engagement R.H. 684-0037 Handle Ass’y - Engagement l.H. 684-0103 Handle Panel Ass’y 710-0458 Carriage Bolt 5/16-18 x 1.75”...
- Page 18 Model 640 Blower Housing Drive Clutch Cable Auger Clutch Cable 16” Wheels 13” or 15” Wheels 9 10 Auger Clutch Cable...
- Page 19 Model 640 REF. PART DESCRIPTION 710-1652 Hex Screw 784-5688 Drive Cable Guide Bracket 784-5687A Auger Clutch Cable Bracket 756-0625 Roller Cable 738-0924 Hex Screw 1/4-28 684-0030 Frame Assembly 741-0563 Ball Bearing 736-0105 Bell Washer 712-0116 Lock Jam Nut 741-0598 Hex Flange Bearing...
- Page 20 Model 640 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. REF. PART DESCRIPTION 710-1652 Hex Washer Screw 1/4-20 x .625...
- Page 21 Model 640 REF. PART 712-0116 Lock Jam Nut 3/8-24 756-0178 Flat Idler 784-5632A Auger Idler Arm 710-0459A Hex Cap Screw 3/8-24 x 1.50 738-0281 Shoulder Screw 736-0174 Wave Washer 732-0611 Extension Spring 712-3068 Hex Nut 5/16-18 712-3010 Hex Nut 5/16-18...
- Page 22 YOUR NOTES Comment Date...
- Page 23 YOUR NOTES Comment Date...
- Page 24 MANUFACTURER’S LIMITED WARRANTY The limited warranty set forth below is given by MTD PRODUCTS INC (“MTD”) with respect to new merchandise purchased and used in the United States, its possessions and territories. MTD warrants this product against defects in material and...