Poulan Pro 418774, Operator'S Manual

Page: 40 / 60

21
SERVICE AND ADJUSTMENTS
FIG. 26
R
R
S
M
TO REPLACE MOWER DRIVE BEL T
MOWER DRIVE BELT REMOV AL (See Fig. 26) -
• Park tractor on a level surface. Engage parking brake.
Disengage attachment clutch control.
• Remove screws from L.H. mandrel cover and remove
cover.
• Remove small retainer spring and lift clutch spring off
pulley bolt.
• Roll belt over the top of L.H. mandrel pulley.
• Remove belt from engine pulley.
• Remove belt from idler pulleys.
• Remove any dirt or grass clippings which may have
accumulated around mandrels and entire upper deck
surface.
• Check primary idler arm and two idlers to see that they
rotate freely.
MOWER DRIVE BELT INST ALLA TION (See Fig. 26) -
• Install belt in both idlers. Make sure belt is in both belt
keepers at the idlers as shown.
• Install new belt onto engine pulley.
• Roll belt into upper groove of L.H. mandrel pulley.
• Carefully check belt routing making sure belt is in the
grooves cor rect ly and inside belt keepers.
• Reassemble clutch spring to pulley bolt.
• Reassemble L.H. mandrel cover.
TO CHECK AND ADJUST BRAKE
(See Fig. 27)
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 five (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.
• Disengage transmission by placing freewhel control
in “transmission disengaged” position. Pull freewheel
con trol out and into the slot and release so it is held
in the disengaged 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 1-9/16", loosen jam nut and
turn nut “A” until distance becomes 1-9/16". Retighten
jam nut against nut “A” .
• Engage transmission by placing freewheel control in
“trans mis sion engaged” position.
• Road test tractor for proper stopping distance as stated
above. Readjust if nec es sary. If stopping distance is
still greater than five (5) feet in high est gear , further
main te nance is nec es sary . Replace brake pads or
contact a qualified service center.
02537
WITH PARKING BRAKE “ENGAGED”
JAM NUT
DO NOT TOUCH THIS NUT . IF FURTHER BRAKE AD -
JUST MENT IS NECESSARY CONT ACT YOUR NEAR EST
AUTHORIZED SERVICE CENTER/DEP ARTMENT
OPERATING
ARM
NUT “A”
1-3/4"
FIG. 27