Poulan Pro 177110 Owner's Manual page 22

TO REPLACE MOWER BLADE DRIVE
BELT
The mower blade drive belt may be
replaced without tools. Park the tractor on
level surface. Engage parking brake.
BELT REMOVAL -
• Remove mower from tractor (See "TO
REMOVE MOWER" in this section of
this manual).
• 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 pulley grooves
and inside all belt guides.
• Install mower in reverse order of
removal instructions.
Idler Pulleys
Mandrel
Pulley
Mandrel
Pulley
TO ADJUST BRAKE
Your tractor is equipped with an adjust-
able 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 ad-
justed.
• 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", 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 six (6) feet in highest gear,
further maintenance is necessary.
Contact your nearest authorized
service center/department.
With Parking Brake "Engaged"
1-1/2"
Nut "A"
Jam Nut
Operating
Arm
TO REPLACE MOTION DRIVE BELT
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 belt from stationary idler and
clutching idler.
• Pull belt slack toward rear of tractor.
Remove belt upwards from transaxle
pulley by deflecting belt keepers.
• Pull belt toward front of tractor and
remove downwards from around
engine pulley.
• Install new belt by reversing above
procedure.
Engine Pulley
Clutching Idler
Stationary Idler
Transaxle
Pulley
TO ADJUST STEERING WHEEL ALIGN-
MENT
If steering wheel crossbars are not
horizontal (left to right) when wheels are
positioned straight forward, remove
steering wheel and reassemble per
instructions in the Assembly section of
this manual.
22
TROUBLESHOOTING CHART
PROBLEM CAUSE
Loss of power • Cutting too much grass/too
fast.
• Throttle in "CHOKE"
position.
• Build-up of grass, leaves
and trash under mower.
• Dirty air filter.
• Low oil level/dirty oil.
• Faulty spark plug.
• Dirty fuel filter.
• Stale or dirty fuel.
• Water in fuel.
• Spark plug wire loose.
• Dirty engine air screen/fins.
• Dirty/clogged muffler.
• Loose or damaged wiring.
• Carburetor out of
adjustment.
• Engine valves out of
adjustment.
Excessive • Worn, bent or loose blade.
vibration
• Bent blade mandrel.
• Loose/damaged part(s).
Engine continues • Faulty operator-safety
to run presence control system.
when operator
leaves seat with
with attachment
clutch engaged
Poor cut - uneven • Worn, bent or loose blade.
• Mower deck not level.
• Buildup of grass, leaves,
and trash under mower.
• Bent blade mandrel.
• Clogged mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
CORRECTION
• Set in "Higher Cut" position/
reduce speed.
• Adjust throttle control.
• Clean underside of mower
housing.
• Clean/replace air filter.
• Check oil level/change oil.
• Clean and regap or change
spark plug.
• Replace fuel filter.
• Drain fuel tank and refill with
fresh gasoline.
• Drain fuel tank and carbure-
tor, refill tank with fresh
gasoline and replace fuel
filter.
• Connect and tighten spark
plug wire.
• Clean engine air screen/fins.
• Clean/replace muffler.
• Check all wiring.
• See "To Adjust Carburetor"
in Service Adjustments
section.
• Contact an authorized
service center/department.
• Replace blade.
Tighten blade bolt.
• Replace blade mandrel.
• Tighten loose part(s).
Replace damaged parts.
• Check wiring, switches and
connections. If not corrected,
contact an authorized
service center/department.
• Replace blade. Tighten
blade bolt.
• Level mower deck.
• Clean underside of mower
housing.
• Replace blade mandrel.
• Clean around mandrels to
open vent holes.
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