MTD 644E, 664G manual Servicing Your Snow Thrower, Engine, Shave Plate and Skid Shoes

Page 18

Auger Shaft

At least once a season, remove shear bolts on auger shaft. Oil or spray lubricant inside shaft and lubricate the auger bearings. See Figure 24.

Vent Plug

 

Plastic

 

Plastic

Bearing

Shear Bolts

Bearing

 

 

Figure 24

Drive and Shifting Mechanism

Remove rear cover. Oil any chains, sprockets, gears, bearings, shafts, and shifting mechanism at least once a season. Use engine oil or a spray lubricant. Avoid getting oil on rubber friction wheel and aluminum drive plate. See Figure 25.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chain

 

 

 

Shift Lever

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Avoid oil on

Gear Shaftfriction wheel and drive plate

Figure 25

Gear Case

The worm gear case has been filled with grease at the factory. If disassembled for any reason, lubricate with 2 ounces of shell grease, part number 737-0168.

IMPORTANT: Do not overfill the gear case. Damage to the seals could result. Be sure the vent plug is free of grease in order to relieve pressure.

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 unit for all engine maintenance procedures.

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, cupped washers and hex nuts which attach them to the snow thrower. Reassemble new skid shoes with the four carriage bolts, cupped washers (cupped side goes against skid shoes) and hex nuts. See Figure 26.

To remove shave plate, remove the carriage bolts, cupped washers and hex nuts which attach it to the snow thrower housing. Reassemble new shave plate, making sure heads of carriage bolts are to the inside of housing. Tighten securely.

Skid Shoe

Carriage

 

 

Bolts

 

 

Shave Plate

 

 

Skid Shoe

Hex Nuts

Figure 26

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Contents Operator’s Manual Table of Contents Important Safe Operation Practices TrainingMaintenance and Storage Contents of Hardware Pack Boxed Units Loose Parts Boxed Unit Assembling Your Snow ThrowerUnpacking CrateAttaching Handle Assembly Assembly Crated UnitAttaching Shift Rod Hardware D Attaching the Chute Assembly Hardware F Attaching Clutch CablesAttaching The Chute Directional Control Auger Drive Control Know Your Snow ThrowerShift Lever Traction ControlOperating Your Snow Thrower To Engage Augers To Stop EngineTo Engage Drive Recoil StarterChute Clean-Out Tool Drift Cutters If EquippedOperating Tips Making Adjustments Traction Control and Shift LeverAuger Control Chute AssemblyAdjusting Shift Rod Skid ShoesMaintaining Your Snow Thrower Drive WheelsLubrication Servicing Your Snow Thrower EngineShave Plate and Skid Shoes Belt Removal and Replacement AugersAuger Belts Friction Wheel Rubber Off-Season StorageDrive Belt Trouble Shooting Guide Trouble Possible Causes Corrective ActionModels 614E, 644E, & 664G Models 614E, 644E, & 664G Part DescriptionModels 614E, 644E, & 664G Jam Lock Nut 3/8-24 Compression Spring 736-0105 Drive Clutch Cable Auger Clutch Wheels Models 614E, 644E, & 664G Models 614E Models 644E & 664G 1615Size Page MANUFACTURER’S Limited Warranty for

664G, 644E specifications

The MTD 644E and 664G tractors represent a significant leap in agricultural technology and efficiency, designed for diverse farming applications. Known for their robust build and advanced features, these models cater to both small and large-scale agricultural operations.

Starting with the MTD 644E, it is powered by a state-of-the-art diesel engine, providing a reliable performance that enhances productivity. The engine delivers impressive horsepower, allowing farmers to tackle various tasks effortlessly. Its fuel efficiency is a standout feature, ensuring reduced operational costs while still meeting demanding farm requirements. The 644E also features a compact design, making it highly maneuverable in tight spaces while maintaining a sturdy construction that guarantees durability in rugged conditions.

On the other hand, the MTD 664G offers slightly higher horsepower, making it suitable for more intensive agricultural work. This model is equipped with a more advanced engine management system that optimizes performance and fuel consumption, ensuring that farmers can work longer hours without frequent refueling. The 664G’s larger frame accommodates additional implements, expanding its versatility for tasks including plowing, tilling, and harvesting.

Both models are built with user-friendly controls, allowing operators to focus on their tasks without unnecessary distractions. The ergonomic seating and intuitive interface are designed to minimize fatigue during long working days. Additionally, these tractors come with a range of safety features, including effective braking systems and visibility enhancements that prioritize operator safety.

Technologically, both the 644E and 664G incorporate precision farming features that allow for better resource management. Implement compatibility enables seamless integration with various agricultural tools, giving users flexibility in their operations. Regular software updates ensure that the tractors remain at the forefront of agricultural technology, further enhancing performance and efficiency.

In summary, the MTD 644E and 664G tractors are tailored for modern farmers seeking reliability and efficiency. Their powerful engines, compact designs, and cutting-edge technology make them indispensable tools on any farm, capable of handling a multitude of agricultural tasks with ease and precision.