CUSTOMER RESlPONSIB L TIES

TRACTOR

Always observe safety rules when performing any rrrainte- nance.

BRAKE OPERATION

If tractor requires more than six (6) feet stopping distance at high speed in highest gear, then brake must be adjusted. (See "TO ADJUST BRAKE" in the Service and Adjust- ments section of this manual)_

TIRES

Maintain proper air pressure in all tires (See "PROD- UCT SPECIFICATIONS" on page 3 of this manual)

Keep tires free of gasoline, oil, or insect control chemi- cals which can harm rubber

oAvoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage

BLADE CARE

For best results mower blades must be kept sharp, Re- place bent or damaged blades

BLADE REMOVAL (See Fig. 11)

oRaise mower to highest position to allow access to blades

Remove hex bolt, lock washer and flat washer securing blade

Install new or resharpened blade with trailing edge up towards deck as shown.

Reassemble hex bolt, lock washer and flat washer in exact order as shown.

Tighten bolt securely (30-35 FL Lbs torque).

IMPORTANT: BLADE BOLT IS GRADE 8 HEAT TREATED

NOTE: We do not recommend sharpening blade- but if you do, be sure the blade is balance&

oThe blade can be sharpened with a file or on a grinding wheel Do not attempt to sharpen while on the mower

oTo check blade balance, you will need a 5/8" diameter steel bolt, pin, or a cone balancer. (When using a cone balancer, follow the instructions supplied with bal- ancer)

=Slide blade on to an unthreaded portion of the steel bolt or pin and hold the bolt or pin parallel with the ground. If blade is balanced, it should remain in a horizontal position If either end of the blade moves downward, sharpen the heavy end until the blade is balanced.

NOTE: Do not use a nail for'balancing blade The lobes of the center hole may appear to be centered, but are not.

CENTER HOLE

5/8" BOLT

BLADE

OR PIN

FIG. 12

V-BELTS

Check V-belts for deterioration and wear after 100 hours

and replace if necessary. The belts are not adjustable Replace belts if they begin to slip from wear_

TRANSAXLE COOLING

Keep transaxle free from build-up of dirt and chaff which can restrict cooling

CHECK TRANSAXLE OIL LEVEL

(See Fig. 13)

BLADE

MANDREL

oBlock up rear axle securely

Remove left rear wheel by removing hub bolts.

TRAILING

EDGE UP

LOCK WASHER_

HEX BOLT

*A GRADE 8 HEAT TREATED BOLT CAN BE IDENTIFIED BY SIX LINES ON THE BOLT HEAD,

FIG. 11

TO SHARPEN BLADE (See Fig. 12)

care should be taken to keep the blade balance& An unbalanced blade will cause excessive vibration and even-

tual damage to mower and engine.

•Remove filler plug from transaxle. Oil level must be even with plug threads. If necessary, fill with SAE 30 motor oil, API-SF or SG Replace filler plug.

°Reassemble wheel to hub.

•For approximate capacity see "PRODUCT SPECIFI- CATIONS" on page 3 of this manual.

 

 

TRANSAXLE

o

J

FILLER PLUG

 

o °

 

i

FIG. 13

16

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Sears 917.250551 manual Tractor, Brake Operation, Tires, Belts, Transaxle Cooling
Page 15 Page 17

917.250551 specifications

The Sears 917.250551 is a versatile and robust lawn mower that has garnered attention for its reliability and performance in maintaining residential lawns. With a blend of modern technology and user-friendly features, this mower is suitable for homeowners looking to keep their yards in pristine condition.

One of the notable attributes of the Sears 917.250551 is its powerful engine. Equipped with a reliable gas-powered engine, this mower delivers consistent performance, ensuring that even dense grass can be tackled effectively. The engine provides ample torque, which is especially beneficial for cutting through thick patches of grass without bogging down.

The mower features a self-propelling system that makes it easier for users to maneuver across various terrains. This technology allows the mower to adjust its speed based on the user's walking pace, providing a comfortable mowing experience while reducing fatigue. The adjustable speed settings cater to different user preferences and grass conditions, making it a flexible choice for diverse lawn care needs.

Another key feature of the Sears 917.250551 is its cutting deck size. The mower typically boasts a generous cutting width, allowing for faster mowing and fewer passes through your lawn. The cutting height is also adjustable, enabling users to customize the grass length according to their liking or seasonal requirements. This flexibility is crucial during different times of the year, as maintaining the optimal grass height can contribute to a healthier lawn.

In terms of build quality, the Sears 917.250551 is designed to withstand the rigors of outdoor use. Constructed with durable materials, it can handle various weather conditions and rough terrains. Maintenance is made straightforward with accessible parts, ensuring that users can perform routine checks and repairs with minimal hassle.

Furthermore, the mower is designed with safety features in mind. The blade brake system halts the blades' rotation immediately when the user releases the handle, minimizing the risk of accidents. Additionally, the ergonomic handles make it comfortable to operate, and they can often be adjusted for height to accommodate users of different statures.

Overall, the Sears 917.250551 stands out for its combination of power, ease of use, and user-friendly features. Whether you have a small yard or a more significant area to maintain, this mower is designed to deliver efficient and effective results, making it a dependable choice for lawn care enthusiasts.
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