LUBRICATION

Wheels - The wheels require no lubrication,

Flails and Fingers - If the unit is disassembled for any reason, lubricate the flails and fingers with a light oil (engine oil may be usedt

CUTTING BLADE

The cutting blade may be removed for grinding or replacement as follows

1 Lower the upper guide extension

2, Block up the housing See figure 20.

3.Remove the four elastic lock nuts from the back of the housing using a 1/2" wrench Refer to figure

14.Separate the shredder into two halves

4, Remove the back-up ptater See figure 20

When sharpening the blade, follow the original angle of grind as a guide. It is extremely important that each

cutting edge receives an equal amount of grinding to prevent an unbalanced blade An unbalanced blade wil!

cause excessive vibration when rotating at high speeds and may cause damage to the unit

The blade can be tested by balancing it on a round shaft screwdriver or nail Remove metal from the heavy side until it balanced evenly See figure 21

Nai,/ \

NOTE

When reassembling, make certain the

opening on the back up plate is toward the bottom of the unit The back up plate

may be reversed to provide a new cutting edge

, , WeEd B ,

x.,

Blade

Blade

Back-Up

/

 

/

 

Plate_.

,__

.....

FIGURE 20,

5.Hold the blade retainer on the impeller assembly with an adjustable wrench to keep the blade from turning as shown in figure 20

6, Remove the blade by removing the center bolt, lock washer and fiat washer

NOTE

Use caution when removing the blade to

avoid contacting the weld bolts protruding from the housing.

WARNING

The blade is reversible and can be assembled to the crankshaft with either

side showing

°,o0eC7

FIGURE 21

When reassembling the blade, tighten to between 375 and 450 inch pounds, or lacking torque wrench, tighten securet¥

FLAILS AND FINGERS

The flails and fingers may be _eversed when they become dull It is suggested that this procedure be performed by your nearest Sears Service Department

OFF-SEASON STORAGE

tf the chipper-shredder is to be inoperative for a period

longer than 30 days, the following precautions are recommended.

IWorking outdoors, drain all [uel from the fue! tank. Run the engine until it stops from lack of fuel

DO NOT DRAIN FUEL WHILE SMOKING,

OR IF NEAR AN OPEN FIRE

2, Drain alI the oil from the crankcase (this should be

done after the engine has been operated and is still warm) and refill crankcase with fresh oi!

3Protect the inside of the engine for storage as follows

Remove spark plug, pour approximately !/2 ounce

(approximately one tablespoonl of engine oil into cylinder and crank slowly to distribute oil Replace spark plug

4Clean the engine and the entire chipper-shredder thoroughly

NOTE

When storing any type of power

equipment in an unventilated or metal storage shed. care should be taken to rustproof the equipment. Using a tight oil or silicone, coat the equipment, especially all moving parts

Store in a clean, d_y area

1!

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Craftsman 247.796890, 770-5875B manual OFF-SEASON Storage, Lubrication, Blade, Flails and Fingers
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247.796890, 79689, 770-5875B specifications

The Craftsman 247.796890,770-5875B,79689 is a robust lawn mower and garden tool that epitomizes quality and performance, catering to both amateur gardeners and professional landscapers. Renowned for its reliability, this mower blends advanced engineering with user-friendly features.

One of the standout characteristics of the Craftsman 247.796890 is its powerful engine. It is equipped with a strong 420cc engine that provides ample power for cutting through tough grass and tackling uneven terrain. The engine's performance ensures that users can maintain their lawns efficiently, even in challenging conditions.

The mower features a 21-inch cutting deck, which allows for a wider cutting swath and minimizes the number of passes needed to achieve a clean cut. This characteristic saves time and effort, making it ideal for larger yards. The cutting height is adjustable, providing versatility for different grass types and user preferences. This adaptability means that whether you prefer a close cut or a higher trim, the mower can be easily adjusted to meet your needs.

Technologically advanced, the 247.796890 incorporates automatic choke technology, which means that starting the machine is effortless. Users no longer have to deal with manual choke adjustments, as the mower automatically optimizes fuel-to-air ratios for easy starts, reducing frustration and enhancing the overall user experience.

The durable construction of the mower ensures long-lasting performance. With solid steel components and a corrosion-resistant deck, it is built to withstand the rigors of outdoor use. This durability combined with maintenance-friendly features, such as an easily accessible air filter and oil dipstick, helps to prolong the lifespan of the mower and ensures peak performance with minimal upkeep.

Safety features are also a priority in the design of the Craftsman 247.796890. It includes a blade brake system that automatically stops the blades when the operator releases the handle, ensuring that users remain secure during operation.

In summary, the Craftsman 247.796890,770-5875B,79689 is a versatile and powerful lawn mower that boasts a strong engine, adjustable cutting height, automatic choke technology, and user-friendly safety features. This mower is a perfect choice for anyone looking to maintain a pristine lawn with minimal effort and maximum efficiency. Its combination of functionality and durability makes it a standout option in the competitive market of garden equipment.
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