Sears 917.25953 owner manual Customer Respon, Tractor, Brake Operation, BLADE REMOVAL See Fig

Models: 917.25953

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CUSTOMER RESPON

CUSTOMER RESPON

TRACTOR

Always observe safety rules when performing any mainte-

_

MANDREL

BLADE

 

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)o

TIRES

oMaintain proper air pressure in ail 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.

NOTE: To seal tire punctures and prevent flat tires due to slow ieaks, tire sealant may be purchased from your local parts dealer. Tire sealant also prevents tire dry rot and corrosion_

BLADE CARE

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

BLADE REMOVAL (See Fig. 14)

. Raise mower to highest position to allow access to blades.

oRemove hex bolt, lock washer and flat washer securing blade,,

oInstall 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 Ft. Lbs. torque).

IMPORTANT: BLADE BOLT IS GRADE 8 HEATTREATED.

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

 

 

 

ASSEMBLY

FLAT W_N__

_

J

TRAILING EDGE

 

 

LOCK WASHER-_

HEX BOLT

(GRADE 8)*

*A GRADE 8 HEAT TREATED BOLT CAN BE IDENTIFtED BYSfXLINESONTHEBOLTHEAD,

FIG, 't4

TO SHARPEN BLADE (See Fig. 15)

Care should be taken to keep the blade balanced. An unbalanced blade will cause excessive vibration and even-

tual damage to mower and engine.

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

To check bFadebalance, you will need a 5/8" diameter steel bolt, pin, or a cone balancero (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.r 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°

CENTERHOLE

5/B" BOLT

BLADE

OR PIN

J

FIG. 15

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Sears 917.25953 owner manual Customer Respon, Tractor, Brake Operation, BLADE REMOVAL See Fig, TO SHARPEN BLADE See Fig