Poulan 186888 - Manual (Page 21)

21
SERVICE AND ADJUSTMENTS
FIG. 21
FIG. 22
FIG. 20
38 38 42 42
MANDREL
PULLEY
RETAINER
SPRING
R.H. SUSPENSION ARM
MANDREL
PULLEY
IDLER
PULLEYS
ENGINE
PULLEY
TO REPLACE MOTION DRIVE BELT
(See Fig. 22)
Park the tractor on level surface. En gage parking brake.
For as sis tance, there is a belt installation guide decal on
bottom side of left footrest.
BELT REMOVAL -
• Remove mower (See “TO RE MOVE 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 en gine pulley.
• Pull belt slack toward rear of trac tor. Remove belt
upwards from transaxle pulley by de fl ect ing belt keep-
ers.
• Remove belt from center span keeper and pull belt
away from tractor.
BELT INSTALLATION -
• Carefully work new belt down be tween 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 clutch ing
idler.
• Make sure belt is in all pulley grooves and in side all
belt guides and keep ers.
• Install mower (See “TO IN STALL MOWER” in this sec-
tion of manual).
TRANSAXLE
PULLEY
STA TION ARY
IDLER CLUTCHING
IDLER
ENGINE
PULLEY
CENTER SPAN
KEEPER
JAM NUT
WITH PARKING BRAKE “ENGAGED”
OPERATING ARM
NUT “A” 1-1/2"
TO CHECK AND ADJUST BRAKE (See Fig. 21)
Your tractor is equipped with an ad just able brake system
which is mounted on the right side of the transaxle.
If tractor requires more than fi ve (5) feet to stop at highest
speed in high est gear on a level, dry concrete or paved
surface, then brake must be checked and ad just ed.
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 wheels must 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", loos en jam nut and turn
nut “A” until dis tance becomes 1-1/2". Re tight en jam
nut against nut “A”.
• Road test tractor for proper stopping distance as stated
above. Readjust if nec es sary. If stopping distance is
still greater than fi ve (5) feet in high est gear, further
main te nance is nec es sary. Replace brake pads or
contact a qualifi ed service center.
TRANSAXLE GEAR SHIFT LEVER NEU TRAL-
ADJUSTMENT (See Fig. 23)
The transaxle should be in neutral when the gear shift
lever is in neutral (N) (lock gate) position. The adjustment
is preset at the factory; however, if adjustment is needed,
proceed as follows:
• Make sure transaxle is in neutral (N).
NOTE: When the tractor rear wheels move freely, the
transaxle is in neutral.
• Loosen adjustment bolt in front of the right rear
wheel.