Poulan 172787 - Manual (Page 23)

23
TO REMOVE / REPLACE DRIVE BELT
FRONT WHEEL GEAR DRIVE
• Remove drive cover. Remove belt from
gearcase pulley by pushing down on pul-
ley and rolling belt off it.
• Turn lawn mower on its side with air fi lter
and carburetor up.
• Remove blade.
• Remove debris shield.
• Remove belt from engine pulley on
crankshaft.
• Install new belt by reversing above steps.
NOTE: Always use factory approved belt to
assure fi t and long life.
Belt
Drive
cover
PUSH DOWN
Belt
Drive
cover
PUSH DOWN
GEAR CASE WITH PLASTIC HOUSING:
“AUTO WALK” OR “VARI-SPEED” ONLY
• Remove drive cover and belt keeper.
• Remove belt from gearcase pulley by
push ing down on pulley and rolling belt
off it.
• Turn lawn mower on its side with air fi lter
and car bu re tor down.
• Remove blade and debris shield.
• Remove belt from engine pulley on
crankshaft.
• Install new belt by reversing above steps.
NOTE: Always use factory approved belt to
assure fi t and long life.
Belt
Drive
cover
PUSH DOWN
Belt keeper
GEAR CASE WITH METAL HOUSING:
FRONT WHEEL BELT DRIVE
• Remove drive cover by removing screw
at rear of cover.
• Remove belt from drive pulley.
• Remove hubcaps and nuts from both
front (drive) wheels. Remove wheels
and washers from wheel adjusters.
• At left (drive) wheel only, remove E-ring, pin-
ion, roll pin, felt washer and dust cover.
Felt
washer
Nut Washer
Dust cover
Roll pin
E-ring Pinion
Hub
cap
Drive shaft
Upper adjust-
ment hole
Lower hole
(original and
new belt
position)
Drive
pulley
Driven
pulley
Clutch
pulley
Retainer clip
Clutch
frame
Idler
• Remove retainer clip from drive shaft on
left side of driven pulley.
• While holding driven pulley, slide drive
shaft to the right until belt can be re-
moved from opening in housing.
• Pull belt free from idler and take out of
clutch frame.
• Reverse procedure to install new belt.
NOTE: When re-assembling pinion, be sure
that the felt washer is in place behind the roll
pin and that the roll pin is seated in the slots
on the bearing and in the back of the pinion.