Sears Craftsman 917.257720 - Manual (Page 22)

SERVICE AND ADJUSTMENTS
TO REPLACE MOTION DRIVE BELT
(See Fig. 30)
Park the tractor on level surface. Engage parking brake.
For ease of service there is a belt installation guide decal on
bottom of left footrest. It is not necessaryto remove mower.
BELT REMOVAL -
• Raise hood and disconnect BLACK (grounding) bat­
tery cable.
• Set parking brake (to get belt slack).
• Remove mower drive belt from electric clutch pulley
only (See “TO REPLACE MOWER DRIVE BELT” in
this section of this manual).
• Roll motion drive belt off transaxle pulley.
• Roll belt off clutching idler pulleys, then off engine
pulley and front V-idler pulley.
• Puli belt out of all belt keepers.
BELT INSTALLATION -
• Place V part of belt into grooves on engine pulley and
front V-idler, making sure to route belt inside of belt
keepers.
• Put belt coming from V-idlerabove midspan belt keeper,
then onto clutching idler pulleys as shown.
• Make sure “V” part of belt engages “V” idler.
• Place belt around transaxle pulley, beginning at top.
“V” part of belt should engage transaxle pulley.
• Place long lower section of beitthrough loop in midspan
belt keeper.
• Check to be sure belt is on proper side of all belt
keepers.
• Reinstall mower drive belt onto electric clutch pulley.
• Release parking brake.
IMPORTANT: CHECK BRAKE ADJUSTMENT.
TRACTOR V-BELT DRIVE SCHEMATIC
VIEWED FROM L.H. SIDE OF TRACTOR
CLUTCHING
IDLER
ENGINE
PULLEY
CLUTCHING
FLAT IDLER
BELT
KEEPER
‘"BELT
KEEPER
ENGINE
PULLEY
V-IDLER
BELT
TWISTS
BELT
KEEPER TRANSAXLE
PULLEY
AS VIEWED FROM BOTTOM
TO ADJUST STEERING WHEEL ALIGNMENT
If steering wheel crossbars are not horizontal (left to right)
when wheels are positioned straightforward, remove steer­
ing wheel and reassemble per instructions in the Assembly
section of this manual.
FRONT WHEEL TOE-IN ADJUSTMENT
Front wheel toe-in Is required for proper steering operation.
Toe-in was set at the factory and adjustment should not be
necessary. If parts in the front axie or steering mechanism
have been replaced or damaged, check toe-in and adjust
if necessary.
TO CHECK TOE-IN (See Fig. 31) -
• Position front wheels straight ahead.
• Measure distance between wheels at front and rear of
tires (dimensions “A” and “B”).
• Front dimension “A” should be 1/8" to 1/4" less than
rear dimension “B”.
TO ADJUST TOE-IN (See Figs. 31 and 32) -
• Loosen jam nuts at adjustment sleeves on tie rod.
• Adjust tie rod until dimension “A” is 1 /8" to 1 /4" less than
dimension “B”.
• Tighten jam nuts securely.
FIG. 30
FRONT WHEEL CAMBER
The front wheel camber is not adjustable on your tractor. If
damage has occurred to affect the front wheel camber,
contact your nearest authorized service center/depart-
ment.
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