MTD 31AE640F352 manual Service, Augers, Shave Plate and Skid Shoes, Belt Replacement, Auger Belts

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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.

Augers

The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. If the snow thrower hits a foreign object or ice jam, hex bolts will shear.

•If the augers will not turn, check to see if the bolts have sheared. Two replacement shear bolts and hex lock nuts have been provided in the snow thrower’s hardware pack. For future use, order part number 710-0890A (shear bolt 5/16-18 x 1.5") and 712-0429 (hex lock nut 5/16-18).

Shave Plate and Skid Shoes

The shave plate and skid shoes on the bottom of the snow thrower are subject to wear. They should be checked periodically and replaced when necessary.

•To remove skid shoes, remove the four carriage bolts, bell washers and hex nuts which attach them to the snow thrower. Reassemble new skid shoes with the four carriage bolts, bell washers (cupped side goes against skid shoes) and hex nuts. Make certain the skid shoes are adjusted to be level.

•To remove shave plate, remove carriage bolts, bell washers and hex nuts which attach it to the snow thrower housing.

•Reassemble new shave plate, making sure heads of the carriage bolts are to the inside of the housing. Tighten securely.

Belt Replacement

WARNING: Disconnect the spark plug wire from the spark plug and ground.

Auger Belts

NOTE: It is necessary to remove both auger belts in order to change either one. If changing just one belt, be certain to check the condition of the other belt.

•Remove the plastic belt cover on the front of the engine by removing the two self-tapping screws. See Figure 13.

•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.

•Remove six self-tapping screws from the frame cover underneath the snow thrower. See Figure 13 for the location of the hardware.

Belt

Cover

Self-Tapping

Screws

Figure 13

•Roll the front and rear auger belts off the engine pulley. See Figure 14.

Rear Auger

Drive

 

Belt

Belt

Engine

 

 

Pulley

Idler

Front Auger

Belt

Pulley

 

 

Engine

Idler

 

Pulley

 

Pulley

 

 

Figure 14

•Unhook the idler spring from the hex bolt on the auger housing. See Figure 15.

•Back out the stop bolt to allow the belts to slip between the bolt and auger pulley. See Figure 16.

NOTE: It may be necessary to loosen the six hex nuts that fasten the frame to the auger housing.

•Lift the rear auger belt from the auger pulley, and slip belt between the support bracket and the auger pulley. See Figure 15. Repeat this step for front auger belt .

•Replace both auger drive belts by following instructions in reverse order.

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Contents OPERATOR’S Manual Table of Contents Training Important Safe Operation PracticesMaintenance and Storage Lamp Wiring AssemblyAssembling Your Snow Thrower Loose PartsGas and Oil Know Your Snow ThrowerOperating Controls Before Starting Operating Your Snow ThrowerGas And Oil Fill-up Starting EngineTo Engage Drive To Stop EngineTo Engage Augers Operating Tips Chute Clean-out ToolSnow Thrower Model Snow Thrower Model Drift Cutter KitAuger Control Chute AssemblyTire Pressure Traction Control and Shift LeverDrive Wheels Skid ShoesLubrication Maintaining Your Snow ThrowerBelt Replacement ServiceAugers Shave Plate and Skid ShoesDrive Belt Changing Friction Wheel RubberTrouble Possible Causes Corrective Action Trouble Shooting GuideModel 31AE640F352 Parts List Model 31AE640F352 Model 31AE640F352 Wheel Chart Model 1833 746-0897 Drive Cable 731-2643 Chute Clean-out Tool Model 31AE640F352 Model 31AE640F352 MANUFACTURER’S Limited Warranty for

31AE640F352 specifications

The MTD 31AE640F352 is a powerful and versatile engine designed for a variety of applications, particularly in the field of outdoor power equipment. Recognized for its reliability and performance, this engine is a perfect choice for lawn mowers, tillers, and other landscaping tools.

One of the standout features of the MTD 31AE640F352 is its robust construction. The engine utilizes a cast-iron cylinder sleeve, which not only enhances durability but also improves heat dissipation. This is crucial in maintaining optimal operating temperatures, especially during prolonged use. The engine's design is engineered for easy maintenance, making it user-friendly for both professionals and hobbyists.

The MTD 31AE640F352 is powered by a four-stroke engine, which contributes to its efficiency and fuel economy. With a displacement of 196cc, this engine provides ample power for a range of tasks while ensuring low emissions, adhering to environmental regulations. The engine's overhead valve (OHV) design allows for better airflow and greater combustion efficiency, resulting in improved torque and horsepower.

Additionally, the MTD 31AE640F352 features an integrated recoil starter and a primer bulb, which facilitate quick and effortless starting, even in cold conditions. This ensures that users can get to work without delays, maximizing productivity. The engine's air filtration system is designed to minimize dust and debris intake, prolonging the engine's lifespan and reducing maintenance frequency.

Another notable characteristic is the quiet operation of the MTD 31AE640F352, making it a suitable choice for residential areas where noise regulations may be a concern. The engine operates smoothly with reduced vibration, providing a comfortable experience for the user.

In terms of versatility, this engine can be found in various MTD products, showcasing its adaptability across different applications. Whether it’s powering a lawn mower or a snow blower, the MTD 31AE640F352 delivers consistent performance, meeting the needs of various outdoor tasks.

Overall, the MTD 31AE640F352 stands out in the engine market for its combination of power, efficiency, and user-friendly features. With its reliable performance and durable construction, it continues to be a preferred choice for numerous outdoor power equipment applications, catering to both residential and commercial users alike.
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