OPERATOR’S MANUAL SNOW THROWER MODEL 31AE640F352 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, brushcovered 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.
TABLE OF CONTENTS Content Page Important Safe Operation Practices ........................................................................ 3 Loose Parts & Hardware Pack................................................................................. 5 Assembling Your Snow Thrower ............................................................................. 7 Know Your Snow Thrower ....................................................................................... 10 Operating Your Snow Thrower .......
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. When you see this symbol—heed its warning.
. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Contact your dealer or telephone 1-800-800-7310 for assistance and the name of your nearest servicing dealer. 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.
SECTION 2: ASSEMBLING YOUR SNOW THROWER Loose Parts Cupped Washer Auger Shear Bolts (Spares) Upper Handle Carriage Bolt Shear Bolts (710-0890A) Hex Lock Nuts 5/16” Thread (712-0429) Wing Nuts NOTE: The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. If you hit a hard foreign object or ice jam, the snow thrower is designed so that the bolts may shear. Two replacement shear bolts and nuts are provided for your convenience. Store in a safe place until needed.
Gas and Oil Lower Handle After assembly, service engine with gasoline, and check oil level as instructed in the engine manual. Lamp Wire Alternator Lead NOTE: Refer to Auger Control Test on page 8 prior to operating your snow thrower. Read and follow all instructions carefully and perform all adjustments to verify your snow thrower is operating safely and properly.
Traction/Auger Control Lock Shift Lever Auger Control Discharge Chute Spark Plug Choke Chute Clean-out Tool Primer Recoil Starter Handle Chute Directional Control Ignition Key Throttle Control Auger Figure 4 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. Attach spark plug wire to spark plug.
NOTE: Always cover vent hole in primer button when pushing. Additional priming may be necessary for first start if temperature is below 15 degrees Fahrenheit. To prevent starter freeze-up: • • • • • • 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. Allow it to rewind slowly while keeping a firm hold on the starter handle. Repeat step above until engine starts.
2. Stop the engine by removing the ignition key. 3. Remove the clean-out tool from the clip which secures it to the rear of the auger housing. 4. Use the shovel-shaped end of the clean-out tool to remove any snow and ice in the discharge chute. WARNING: Never use your hand to clear a "Z" Fitting clogged discharge chute. Shut off engine and remain behind handles until all moving parts have stopped before unclogging. 5.
SECTION 5: MAKING ADJUSTMENTS WARNING: NEVER attempt to make any adjustments while the engine is running, except where specified in the operator’s manual. WARNING: Drain the gasoline out of snow thrower engine, place a piece of plastic film under the gas cap to avoid spillage before beginning the job. Auger Control To test further for correct adjustment, if necessary, proceed as follows: Refer to Auger Control Test on page 8 to adjust the auger control.
Shift Lever Ferrule Upper Shift Rod Carriage Bolts Hex Nuts Shift Rod Connector Skid Shoe Hairpin Clip Lower Shift Rod Figure 9 Shift Arm Assembly Inside Hole in Axle Figure 8 • • Insert ferrule into the upper hole in shift lever. Reinstall the hairpin clip and the washer. IMPORTANT: Check for correct adjustment of the shift lever as instructed on page 10, before operating the snow thrower.
SECTION 6: MAINTAINING YOUR SNOW THROWER WARNING: Before servicing, repairing or Shear Bolts 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 Engine • Refer to the engine manual for maintenance procedures and instructions.
SECTION 7: SERVICE 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. • 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. See Figure 13 for the location of the hardware.
• Friction Wheel • 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. See Figure 17. Support Bracket Rear Auger Belt Frame Front Auger Pulley Auger Pulley Auger Idler Housing Spring Figure 17 • • 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 14.
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. • • Remove all dirt from exterior of engine and equipment. Follow lubrication recommendations on page 12.
SECTION 10: MODEL 31AE640F352 PARTS LIST 18 1 20 16 63 4 6 3 14 17 21 33 3 2 15 7 3 9 5 8 2 1 13 29 18 32 10 11 1 12 19 35 30 23 20 26 54 27 25 22 17 28 61 62 24 39 26 37 34 38 57 31 51 36 41 44 48 52 49 53 45 54 57 42 26 43 27 47 40 54 55 56 50 58 26 59 60 16
Model 31AE640F352 REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PART NO. 714-0507 747-0877 710-0599 784-5680 784-5679 748-0362 748-0363 732-0145 711-0653 720-0232 684-0037B 784-5681 784-5619A 784-5682 732-0746 684-0036A 735-0199A 736-0509 712-0271 712-3010 746-0778 684-0103 712-3068 710-0449 712-0429 714-0104 736-0275 711-0677 710-0458 720-0274 749-0951 710-1003 DESCRIPTION Cotter Pin Rod Hex Washer Screw 1/4-20 x .
Model 31AE640F352 27 20 39 38 Drive Clutch Cable 37 5 13 30 7 6 40 45 Auger Clutch Cable 4 3 4 30 2 14 26 15 5 36 16 25 44 7 31 28 23 10 12 17 41 18 24 32 9 11* 25 8 4 1 22 33 29 8 21 1 20 42 5 34 Auger Clutch Cable 19 43 35 1 18 1
Model 31AE640F352 REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 PART NO. 710-1652 784-5688 784-5687A 756-0625 738-0924 784-5630B 741-0563 736-0105 712-0116 741-04026 736-0188 784-5689A 710-0538 736-0242 714-0474 736-0160 710-0809 784-5590 784-5638 710-1652 736-0351 717-1445 714-0126 DESCRIPTION Self-tapping Screw, 1/4-20 x .
Model 31AE640F352 2 3 4 1 44 11 10 14 43 9 12 6 24 7 20 8 9 18 19 9 15 22 23 27 13 38 5 21 13 10 25 28 23 18 13 26 30 35 41 36 22 18 9 18 9 37 39 40 40 34 42 39 20 16 33
Model 31AE640F352 REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 28 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 PART NO.
Model 31AE640F352 4 17 11 9 16 13 8 15 2 14 5 10 6 3 7 12 1 REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 PART NO. 618-0123 618-0124 710-0642 711-0909A 714-0161 715-0143 717-0528 717-0526 718-0186 721-0325 721-0327 736-0351 736-0369 736-0445 741-0662 741-0663 618-0121A 3 DESCRIPTION RH Reducer Housing LH Reducer Housing Hex Screw 1/4-20 x .75 Spiral Axle 26" 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.
Model 31AE640F352 1 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. 2 3 5 4 8 26 9 12 11 10 16 19 19 16 15 16 4 7 16 6 21 22 13 14 17 25 18 23 20 24 REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 PART NO. 710-1652 731-1324 732-0710 710-0627 710-3005 05896A 748-0234 756-0987 754-0346 756-0986 736-0270 710-0230 756-0313 20 REF. NO.
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. d. 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.
