SECTION 9: LUBRICATION

WARNING: Disconnect the spark plug wire and ground against the engine before performing any lubrication or maintenance.

ENGINE

Refer to engine manual for all engine lubrication instructions.

WARNING: When following instruct- ions in separate engine manual for draining oil, be sure to protect frame to avoid oil dripping onto transmission parts.

CHUTE CRANK

The gear on the end of the chute crank should be greased with multi-purpose automotive grease once a season.

AUGER SHAFT

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

28.Also lubricate the auger bearings at least once a season.

Shear Bolts

Bearings

Figure 28

SPROCKET SHAFT

Lubricate the sprocket shaft with a light oil at least once a season or after every 25 hours of operation.

IMPORTANT: Keep all grease and oil off of the rubber friction wheel and aluminum drive plate.

DRIVE AND SHIFTING MECHANISM

At least once a season or after every 25 hours of operation, remove the bottom frame cover. Lubricate 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.

GEAR CASE

The gear case is lubricated with grease at the factory and does not require checking. 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 10: MAINTENANCE

AUGERS

The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. Refer to Figure 28. If you hit a hard foreign object or ice jam, the snow thrower is designed so that the 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 with the snow thrower. For future use, order part number 710-0890 (shear bolt 5/16-18 x 1.5" long) and 712-0429 (hex insert lock nut 5/16-18 thread).

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, belleville washers and hex nuts which attach them to the snow thrower. Reassemble new skid shoes with the four carriage bolts, belleville washers (cupped side goes against skid shoes) and hex nuts. Make certain the skid shoes are adjusted to the same level on both sides.

To remove shave plate, remove the carriage bolts, belleville 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.

ENGINE

Refer to separate engine manual for all engine maintenance procedures.

BELT REMOVAL AND REPLACEMENT

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

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MTD E6A4E, E664F, E662H, E644E, E642E manual Lubrication, Maintenance
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E642E, E644E, E662H, E6A4E, E664F specifications

The MTD E664F, E6A4E, E642E, E644E, and E662H are innovative models within the MTD lineup, showcasing cutting-edge features and advanced technologies designed to provide optimal performance and versatility for various applications.

The MTD E664F stands out with its robust build and powerful engine, making it a reliable choice for commercial and heavy-duty tasks. It incorporates a user-friendly control system, enhancing the operator experience and ensuring precise handling. Its high-capacity fuel tank allows for longer work intervals, reducing downtime and increasing productivity.

Meanwhile, the MTD E6A4E model is tailored for efficiency and ease of use. This unit features a compact design, making it ideal for urban environments or smaller workspaces. Its lightweight construction facilitates effortless maneuverability, while the advanced cutting technology ensures a clean and even finish. Users will appreciate the minimal maintenance requirements, further adding to its appeal.

The MTD E642E combines power with versatility. Equipped with a range of adaptable attachments, this model is suitable for multiple applications, from landscaping to snow removal. Its durable chassis and high-torque engine deliver superior performance under varying conditions. Additionally, the model’s ergonomic design ensures operator comfort during extended use, making it a favorite among professionals.

Similar to the E642E, the MTD E644E focuses on flexibility but enhances it with smart technology integration. Featuring an intuitive interface and connectivity options, operators can monitor and manage operations remotely. This connectivity maximizes uptime through predictive maintenance alerts and efficiency tracking.

Lastly, the MTD E662H is a high-performance model that is engineered for heavy-duty applications. Its powerful engine is paired with advanced transmission technology, ensuring smooth operation even under the most demanding conditions. The fully adjustable settings allow operators to customize performance to meet specific requirements, while the rugged construction promises longevity and reliability.

These models collectively embody MTD’s commitment to innovation and quality, offering various features, including durability, adaptability, and user-focused design. Whether for professional landscaping, agriculture, or maintenance tasks, the MTD E664F, E6A4E, E642E, E644E, and E662H provide a comprehensive range of solutions tailored to meet the needs of today’s operators, reinforcing MTD’s reputation in the market.
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