SECTION 6: MAINTAINING YOUR SNOW THROWER

WARNING: Before lubricating, 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.

Lubrication

Wheels

Oil or spray lubricant into plastic wheel bearings inside the wheel hubs at least once a season. Remove wheels, clean and coat axles with a multi- purpose automotive grease. See Figure 12.

Click Pin

Axle

Oil or use Spray Lubricant

Figure 12

Gear Case

The gear case is equipped with a grease fitting on the left housing and should be lubricated with Shell Alvania grease EPR00, part number 737-0168 every 25 hours. See Figure 14.

Vent Plug

Lube Fitting

Figure 14

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.

Auger Shaft

At least once a season, remove the shear bolts on the auger shaft. Oil or spray lubricant inside and on the plastic bearings on the shaft. See Figure 13.

Shear Bolts

Plastic Bearings

Figure 13

Gear Shaft

Lubricate the gear shaft with 6-n-1 grease at least once a season or after every 25 hours of operation (available at auto parts stores or order part number 737-0170).

Refer to Figure 9.

Drive and Shifting Mechanism

At least once a season or after every 25 hours of operation, remove rear 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. Refer to Figure 9.

Chute Directional Control

The spiral on the end of the chute directional control and the base of the discharge chute itself should be lubed with multi-purpose automotive grease once a season. See Figure 15.

Lube Spiral

and Chute Base

Figure 15

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Bolens 550, 750 manual Maintaining Your Snow Thrower, Lubrication

750, 550 specifications

The Bolens 750 and 550 are robust garden tractors renowned for their reliability and performance in lawn care and gardening tasks. Designed for both amateur and professional gardeners, these machines provide an exceptional blend of power and versatility.

The Bolens 750 features a powerful engine, typically a 17-20 HP Briggs & Stratton or Kohler, known for their durability and efficient fuel consumption. This tractor is fitted with a hydrostatic transmission system, which ensures smooth operation and ease of use. The hydrostatic system allows the user to control speed and direction effortlessly, making it an ideal choice for navigating tight spaces and varied terrains.

On the other hand, the Bolens 550 offers a slightly lower horsepower, usually around 15 HP, but maintains many of the same core features found in its counterpart. The 550 is designed for users who may need a more compact option without sacrificing performance. Both tractors have a rugged steel frame construction, ensuring longevity and strength, even when subjected to heavy-duty tasks.

A major highlight of both models is their cutting deck, available in various sizes, from 42 inches up to 54 inches. The adjustable cutting height feature allows users to set the desired grass length, providing flexibility for different lawn types and personal preferences. The side discharge option efficiently handles grass clippings, while mulch kits are also available for those who prefer returning nutrients to the soil.

One significant technological advancement in the Bolens 750 and 550 models is their ergonomic design. The comfortable seating, well-placed controls, and easy access points for maintenance make these tractors user-friendly. With a tight turning radius, they excel in maneuverability, making them suitable for properties with intricate landscaping.

Moreover, both tractors come equipped with standard rear and front hitch capabilities, allowing for the attachment of various accessories, such as snow plows, tillers, and aerators. This versatility makes them indispensable tools for year-round yard care and maintenance.

In summary, the Bolens 750 and 550 stand out with their powerful engines, innovative features, and rugged build quality. They cater to a variety of gardening and landscaping needs, offering users unmatched reliability and efficiency in their outdoor tasks. Whether you are tackling expansive gardens or compact lawns, these tractors deliver performance that can help transform any landscape with ease and precision.