Poulan Pro PO1538D Owner's Manual page 21

SERVICE AND ADJUSTMENTS
MANDREL ENGINE
PULLEY PULLEY
RETAINER
SPRING
IDLER
PULLEYS
MANDREL
PULLEY
FIG. 20
TO CHECK AND ADJUST BRAKE (See Fig. 21)
Your tractor is equipped with an adjustable brake system
which is mounted on the right side of the transaxle.
If tractor requires more than five (5) feet to stop at highest
speed in highest gear on a level, dry concrete or paved
surface, then brake must be checked and adjusted.
TO CHECK BRAKE
• Park tractor on a level, dry concrete or paved surface,
depress clutch/brake pedal all the way down and en-
gage parking brake.
• Place gear shift lever in neutral (N) position.
The rear wheelsmust lock and skid when you try to manually
push the tractor forward. If the rear wheels rotate, the brake
needs to be adjusted or the pads need to be replaced.
TO ADJUST BRAKE
• Depress clutch/brake pedal all the way down and en-
gage parking brake.
• Measure distance between brake operating arm and
nut "A" on brake rod.
• If distance is other than 1-1/2", loosen jam nut and turn
nut "A" until distance becomes 1-1/2". Retighten jam
nut against nut "A".
• Road test tractor for proper stopping distance as stated
above. Readjust if necessary. If stopping distance is
still greater than five (5) feet in highest gear, further
maintenance is necessary. Replace brake pads or
contact a qualified service center.
WITH PARKING BRAKE "ENGAGED"
NUT "A"
/ JAM NUT
O .A NGAR.
TO REPLACE MOTION DRIVE BELT
(See Fig. 22)
Park the tractor on level surface. Engage parking brake.
For assistance, there is a belt installation guide decal on
bottom side of left footrest.
BELT REMOVAL -
Remove mower (See "TO REMOVE MOWER" in this
section of manual).
NOTE: Observe entire motion drive belt and position of all
belt guides and keepers.
Remove belt from stationary idler and clutching idler.
Remove belt downward from around engine pulley.
Pull belt slack toward rear of tractor. Remove belt
upwards from transaxle pulley by deflecting belt keep-
ers.
• Remove belt from center span keeper and pull belt
away from tractor.
BELT INSTALLATION -
• Carefully work new belt down between transaxle belt
keepers and onto the input pulley.
• Slide belt into the center span keeper.
• Pull belt toward front of tractor and roll around the top
groove of engine pulley.
• Install belt through stationary idler and clutching
idler.
• Make sure belt is in all pulley grooves and inside all
belt guides and keepers.
• Install mower (See"TO INSTALL MOWER" in this sec-
tion of manual).
ENGINE "----...
PULLEY
CLUTCHING._..___._.
IDLER
CENTER SPAN
KEEPER
II TRANSAXLE
. II .uL v
FIG. 22
TO ADJUST STEERING WHEEL ALIGN-
MENT
If steering wheel crossbars are not horizontal (left to right)
when wheels are positionedstraight forward, remove steer-
ingwheel and reassemble per instructions in the Assembly
• section of this manual.
FRONT WHEEL TOE-IN/CAMBER
The front wheel toe-in and camber are not adjustable on
your tractor. If damage has occurred to affect the front
wheel toe-in or camber, contact your nearest authorized
service center/department.
FIG. 21
21