OPERATOR’S MANUAL SNOW THROWER Models 642E, 642F, 662E, 614E, 644E, 664F, & 6A4E Model 664 Shown 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...
Content Important Safe Operation Practices ...3 Hardware Pack...5 Assembling Your Snow Thrower ...6 Know Your Snow Thrower...10 Operating Your Snow Thrower...11 Making Adjustments...14 Maintaining Your Snow Thrower ...17 Service ...17 Troubleshooting ...20 Parts List ...20 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.
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.
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.
SECTION 2: CONTENTS OF HARDWARE PACK Lay out the hardware according to the illustration below for identification purposes. Part numbers are shown in parentheses. (Hardware pack may contain extra items which are not used on your unit.) ATTACHING THE HANDLES Hex Bolts 710-3259 (2) Hex Bolts...
SECTION 3: ASSEMBLING YOUR SNOW THROWER NOTE: References to right or left side of the snow thrower are determined from behind the unit in the operating position. The “operator’s position” is defined as standing directly behind the snow thrower, facing the handle panel.
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Auger Control Left Bracket Left Handle Spacer Hex Bolt Handle Panel Figure 4 • Repeat process for the right side Traction Control. • Lay handle assembly behind snow thrower. See Figure 5. • Insert a hex bolt 3/4” long and lock washer through the lower hole on the bottom of the handle.
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• Models 614, 644, 664, and 6A4: Thread the ferrule onto the shift rod, up or down the shift rod and align with the far hole on the narrow side of the shift lever assembly behind the handle panel. See Figure 8. Shift Lever Auger Flat...
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NOTE: Lock nuts cannot be threaded onto a bolt by hand. Tighten with two 7/16” or adjustable wrenches. Attaching The Chute Directional Control (Hardware C) • Thread one hex nut about halfway onto eye bolt on the chute directional control. •...
SECTION 4: KNOW YOUR SNOW THROWER WARNING: Read, understand, and follow all instructions and warnings on the machine and in this manual before operating. Shift Lever The shift lever is located in the center of the handle panel. The shift lever may be moved into one of six positions.
Safety Ignition Key The safety ignition key must be fully inserted in the switch before the unit will start. Remove the ignition key when the snow thrower is not in use. See Figure 14. Do NOT attempt to turn the key. IMPORTANT: Skid Shoe The position of the skid shoe is determined by the...
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pushing. Additional priming may be necessary for first start if temperature is below 15 degrees Fahrenheit. • Grasp starter handle and pull rope out slowly, until it pulls slightly harder. Let rope rewind slowly. • Pull starter handle rapidly. Do not allow handle to snap back.
Chute Clean-out Tool The chute clean-out tool is conveniently fastened to the rear of the auger housing with a mounting clip. Should snow and ice lodge itself in the discharge chute during operation, proceed as follows to safely clean the chute and chute opening: •...
SECTION 6: MAKING ADJUSTMENTS WARNING: Never attempt to make any adjustments while the engine is running, except where specified in operator’s manual. Tire Pressure (Pneumatic Tires) • The tires are overinflated for shipping purposes. Before operating check tire pressure and reduce pressure to between 15psi and 20 psi.
Chute Assembly The distance snow is thrown can be adjusted by changing the angle of the chute assembly. To do so, stop the engine by removing the ignition key and loosen the plastic wing knobs found on either side of the discharge chute.
Both Wheels Driving • Rotate wheel assembly to align hole in the hub with the inner hole on the axle shaft. Insert klick pin in the hole. Outer axle shaft hole should be visible. SECTION 7: MAINTAINING YOUR SNOW THROWER WARNING: Before lubricating, repair- ing, or inspecting, disengage all clutch...
SECTION 8: 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 Engine Refer to the separate engine manual packed with your...
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Auger Belt Idler Pulley Engine Pulley Idler Pulley Figure 26 • Reassemble auger drive belt(s) by following instructions in reverse order. Drive Belt • Follow first four steps of previous instructions. • Pull idler pulley up, and lift belt off engine pulley and friction wheel disc.
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Screws Friction Wheel Rubber Friction Wheel Plates Figure 30 • Slide friction wheel assembly back onto the gear shaft. Be sure to align the pin on the shift rod with hole in the friction wheel assembly. See Figure 27. • Reassemble gear shaft and the wheels.
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SECTION 9: 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).
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 LLC warrants this product against defects 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 materials or workmanship.