Sears 917.251551 manual Tractor, Blade Removal See Fig, Check Transaxle OIL Level

CUSTO E ESPONSMBmL ES

TRACTOR

Always observe safety rules when performing any mainte- 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 manua0.

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,
	Avoid 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

°The blade can be sharpened with a file or on a gfinding 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 balancero (When using a cone balancer, follow the instructions supplied with bal-

ancer)o

°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 untit 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 noL

CENTER HOLE

5t8" BOLT	BLADE
OR PIN

BLADE REMOVAL (See Fig. 11)

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

Remove hex bott, lockwasher 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 HEATTREATED

NOTE: We do not recommend sharpening blade - but ifyou do, be sure the blade is balanced.

MANDREL

BLADEASSEMBLY

TRAILING

EDGE UP

FLAT WASHER,,, _. /

LOCKWASHER. /

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 transaxie free from build-up of dirt and chaff which can restrict cooling,

CHECK TRANSAXLE OIL LEVEL

(See Fig. 13)

°Block up rear axle securely,

°Remove left rear wheel by removing hub bolts.

°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.

oFor approximate capacity see "PRODUCT SPECIFI- CATIONS" on page 3 of this manual.,

HEX BOLT (GRADE 8)*__

*AGRADE B HEAT TREATED BOLT CAN BE IDENTIFIEDBY SIXLINESON THE BOLT HEAD,

O

TRANSAXLE

PLUG

o

FIG.11

O

O

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,	FIG. 13

17