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Operator's Manual
Snow Thrower
Model H660G
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 361131 Cleveland, Ohio 44136-9722.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-9722
. 769-00814.fm
FORM NO
(6/2003)
PRINTED IN U.S.A.
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Summary of Contents for MTD H660G
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Page 1: Snow Thrower
A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-9722. MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-9722 . 769-00814.fm FORM NO (6/2003) PRINTED IN U.S.A. -
Page 2: Table Of Contents
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. (Model Number) (Serial Number) MTD LLC P. O. BOX 361131 CLEVELAND,OH 44136 330-220-4683 www.mtdproducts.com... -
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 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. Muffler and engine become hot and can cause a burn. Do not touch. -
Page 5: Assembling Your Snow Thrower
SECTION 2: ASSEMBLING YOUR SNOW THROWER Loose Parts The augers are secured to the auger shaft with two shear bolts and hex lock nuts. If you hit a foreign object or ice jam, the snow thrower is designed so that the bolts may shear. -
Page 6: Know Your Snow Thrower
The cable should have very little slack, but IMPORTANT: should NOT be tight. An overtightened cable may prohibit the auger and drive from disengaging. WARNING: Over-tightening the cable may prohibit the auger and drive from disengaging and compromise the safety of the snow thrower. -
Page 7: Ignition Key
Traction Control / Auger Control Lock Heated Handles Switch Headlight Discharge Chute Auger Heated Handles Switch The heated handles 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. -
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 •... -
Page 9: To Stop Engine
• Push primer button two or three times for cold engine start, making sure to cover vent hole in primer button when pushing. DO NOT use primer to restart a warm engine after a short shutdown. • Push starter button to start engine. •... -
Page 10: Operating Tips
Auger Control Lever “Z” Fitting Jam Nut Make Sure Cable Is Straight Figure 9 • Repeat Auger Control Test to verify proper adjustment has been achieved. Chute Clean-Out Tool The chute clean-out tool is conveniently fastened to the rear of the auger housing with a mounting clip (Refer to Figure 7). -
Page 11: Making Adjustments
SECTION 5: MAKING ADJUSTMENTS WARNING: NEVER attempt to make any adjustments while the engine is running, except where specified in the operator’s manual. Tire Pressure (Pneumatic Tires) • The tires are over-inflated for shipping purposes. Before operating, check tire pressure and reduce, if necessary, to between 15 psi and 20 psi. -
Page 12: Shift Rod
Shift Rod To adjust the shift rod, proceed as follows. • Remove the hairpin clip and slide the shift rod connector up, to separate the upper shift rod from the lower shift rod. See Figure 13. • Place the shift lever into the sixth (6) position. •... -
Page 13: Maintaining Your Snow Thrower
Both Wheels Driving: Insert the click pin through the hole in the hub of the rim and the inside hole on the snow thrower’s right axle. This position is good for heavy snow as there is power drive in both wheels. -
Page 14: Service
Traction Control / Auger Control Lock The cams on the ends of the control rods which interlock the traction drive and auger drive controls must be lubricated at least once a season or every 25 SECTION 7: SERVICE WARNING: Before servicing, repairing, or inspecting, disengage all clutch levers and stop engine. - Page 15 Self-Tapping Screws Figure 20 • Roll the front and rear auger belts off the engine pulley. See Figure 21. Rear Auger Belt Idler Pulley Idler Engine Pulley Pulley Figure 21 • Unhook the idler spring from the hex bolt on the auger housing.
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Page 16: Off-Season Storage
Changing 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 as follows: •... -
Page 17: Troubleshooting
NOTE: Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits during storage. Do not drain carburetor if using fuel stabilizer. • Wipe equipment with an oiled rag to prevent rust. • Remove spark plug and pour one ounce of engine oil through spark plug hole into cylinder. -
Page 18: Parts List
SECTION 10: PARTS LIST... - Page 19 Model H660G Ref. Part No. Part Description 684-0008A Shift Arm Assembly 710-0458 Carriage Bolt 5/16-18 x 1.75” 710-0449 Carriage Bolt 5/16-18 x 2.25” 710-0788 TT Screw 1/4-20 x 1” 710-0837 C-Sunk Screw #10-16x 0.625” 710-1880 Hex Screw 5/16-18 x.75” 711-0677...
- Page 20 Model H660G Drive Clutch Cable Auger Clutch Cable Auger Clutch Cable...
- Page 21 Model H660G REF. PART DESCRIPTION 710-1652 Self-tapping Screw, 1/4-20 x.625 784-5688 Drive Cable Guide Bracket 784-5687A Auger Clutch Cable Bracket 756-0625 Cable Roller 738-0924 Hex Screw 1/4-28 784-5630B Frame Assembly 741-0563 Ball Bearing 736-0105 Bell Washer 712-0116 Lock Jam Nut...
- Page 22 Model H660G REF. PART 712-0116 Lock Jam Nut 3/8-24 756-0178 Flat Idler 784-5632B Auger Idler Arm 710-0459A Hex Cap Screw 3/8-24 x 1.50 738-0281 Shoulder Screw 736-0167 Flat Washer,.565 x 1.25 x.02 732-0611 Extension Spring 712-3068 Hex Nut 5/16-18 712-3010...
- Page 23 Model H660G IMPORTANT: For a properly 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 24 MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD LLC 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 workmanship for a period of two (2) years commencing on the...