MTD 31AE633E401, 31AE663H401 manual Augers, Engine

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Hex Nut / Bell Washer

•Position the friction wheel assembly up onto the pin of the shift rod assembly, and slide the shaft through the assembly. Reassemble in reverse order.

NOTE: If you placed plastic film under the gas cap, be certain to remove it.

Augers

The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. See Figure 26. If you hit a foreign object or ice jam, the snow thrower is designed so that the bolts may shear.

Snow thrower shown resting on its auger housing; wheels not shown for clarity.

Figure 24

•Lightly tap the hex nut to dislodge the ball bearing from the right side of frame before removing the hex nut and bell washer from left end of shaft.

•Move the gear shaft to the right and slide the friction wheel assembly from the shaft.

•Remove the six screws from the friction wheel assembly (three from each side). Remove the friction wheel rubber from between the friction

wheel plates. See Figure 25.

Screws

Friction Wheel Rubber

Hub

Screws

Friction Wheel Plates

Figure 25

•Reassemble new friction wheel rubber to the friction wheel plates and hub, tightening the six screws in rotation and with equal force.

Shear Bolts

Figure 26

If the augers do not turn, check if the bolts have sheared. Two replacement shear bolts and hex lock nuts have been provided with the snow thrower. Refer to Loose Parts on page 5. For future use, order kit number OEM-710-0890.

IMPORTANT: NEVER replace the auger shear bolts with standard hex bolts. Any damage to the auger gearbox or other components, as a result of doing so, will NOT be coved by your snow thrower’s warranty.

Engine

•Refer to the engine manual for all engine related service procedures.

SECTION 8: OFF-SEASON STORAGE

WARNING: Never store engine with fuel in tank indoors or in 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.

•If unit is to be stored over 30 days, prepare engine for storage as instructed in the engine manual.

•Remove all debris from the exterior of equipment.

•Follow lubrication recommendations on page 13.

•Always store the snow thrower in a clean, dry area.

NOTE: When storing any type of power equipment in an unventilated or metal storage shed, care should be taken to rust proof the equipment. Using a light oil or silicone, coat the equipment, especially any chains, springs, bearings and cables.

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Contents Operator’s Manual Table of Contents Important Safe Operation Practices TrainingPreparation OperationMaintenance And Storage Your ResponsibilityAssembling Your Snow Thrower UnpackingLoose Parts Assembling HandleAttaching Chute Directional Control Model E633EFinal Adjustments Model 663HChute Directional Control Support Bracket Traction Control and Shift LeverSkid Shoe Tire Pressure Pneumatic TiresKnow Your Snow Thrower Operating Your Snow Thrower Before StartingGas and Oil Fill-Up To Start EngineTo Stop Engine To Engage DriveTo Engage Augers Operating TipsChute Assembly Auger ControlSkid Shoe Traction Control Drive Wheels Maintaining Your Snow Thrower Lubrication Belt Removal and Replacement ServiceShave Plate and Skid Shoes Housing Spring Changing Friction Wheel RubberDrive Belt AugerAugers EngineTroubleshooting Problem Cause RemedyParts List for Models E633 and E663 Models E633 and E663 Part DescriptionDrive Clutch Cable Part Description Ref. No Models E633 and E663 Ref. No Part Description Ref. No Part DescriptionModel E633 Ref. No. Part No Part DescriptionModel E663 Model E633 Model E663 MANUFACTURER’S Limited Warranty for
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