To Replace Mower Blade; To Adjust Brake; To Replace Motion Drive Belt - Craftsman 3One 917.255440 Owner's Manual

SERVICE
IIIIMI !r
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 25)
The mower blade drive belt may be replaced without tools.
Park the tractor on level surface. Engage parking brake,
For assistance, there is a belt installation guide decal onthe
mower housing.
BELT REMOVAL -
• Place attachment clutch in "DISENGAGED" position.
• Move attachment lift lever forward to lower mower to
its lowest position.
• Roll belt off engine pulley.
• Work belt off both mandrel pulleys and idler pulleys.
, Pull belt away from mower.
BELT INSTALLATION -
, Install new belt in reverse order of removal.
• Make sure belt is in all pu!ley grooves and inside all
belt guides.
ENGINE PULLEY
MANDREL IDLER
PULLEY PULLEYS
MANDREL
PULLEY
FIG. 25
TO ADJUST BRAKE (See Fig. 26)
Your tractor is equipped with an adjustable brake system
which is mounted on the right side of the transaxle:
If tractor requires more than six (6) feet stopping distance
at high speed in highest gear, then brake must be adjusted.
• Depress clutch/brake pedal and engage parking brake.
- Measure distance between brake operating arm and
nut "A" on brake rod.
• If distance is other than 1-1/2", disengage parking
brake, loosen jam nut and turn nut "A" until distance
becomes 1-1/2". Retighten jam nut against nut "A".
• Engage parking brake and recheck distance.
• Road test tractor for proper stopping distance as stated
above. Readjust if necessary. If stopping distance is
still greater than six (6) feet in highest gear, further
maintenance is necessary. Contact your nearest au-
thorized service center.
AND. ADJUSTMENTS
WITH PARKING BRAKE "ENGAGED"
NUT "A"
AM NUT
FIG. 26
TO REPLACE MOTION DRIVE BELT
(See Fig. 27)
Park the tractor on level surface. Engage parking brake.
For assistance, there is a belt installation guide decal on
bottom side of left footrest.
- Remove mower (See "TO REMOVE MOWER" in this
section of this manual.)
- Remove upper belt keeper.
= Remove belt from stationary idler and clutching idler.
• Pull belt slack toward rear of tractor. Remove belt
upwards from transaxle pulley by deflecting belt keep-
ers.
o Pull belt toward front of tractor and remove downwards
from around engine pulley.
• Install new belt by reversing above procedure.
iMPORTANT: MAKE SORE UPPER BELT KEEPER tS
POSITIONED PROPERLY BETWEEN LOCATOR TABS.
PULLEY
LOCATOR
CLUTCHING TABS
IDLER
IDLER
UPPER BELT
KEEPER
PULLEY
FIG. 27