To Replace Mower Blade Drive Belt; To Adjust Clutch; Air Filter, Clean Air Screen - Poulan Pro PB30 Operator's Manual

TO REPLACE MOWER BLADE DRIVE
BELT
MOWER DRIVE BELT REMOVAL
1. Park riding mower on a level surface.
2. Set parking brake.
3. Lower mower to its lowest position.
4. Remove mandrel cover from mower deck.
5. Remove rear engine plate from unit.
6. Remove rear belt keeper from unit.
7. Carefully roll belt over the top of the
mower blade mandrel.
Mower Drive Belt
Idler Pulleys
Mandrel
8. Remove belt from idler pulleys.
9. Check idler pulleys to see that they rotate
freely.
10. Remove belt from rear drive pulley.
MOWER DRIVE BELT INSTALLATION
Install in reverse order following instruc-
tions in "MOWER DRIVE BELT REMOVAL"
section.
TO CHECK BRAKE
If riding mower requires more than four (4)
feet to stop at highest speed in highest gear
on a level, dry concrete or paved surface,
then brake must be serviced.
You may also check brake by:
1. Park riding mower on a level, dry con-
crete or paved surface, depress clutch/
brake pedal all the way down and engage
parking brake.
2. Place motion control lever in neutral
position.
The rear wheels must lock and skid when
you try to manually push the riding mower
forward. If the rear wheels rotate, then the
brake needs to be serviced. Contact a quali-
fied service center.

TO ADJUST CLUTCH

To ensure proper drive performance, periodic
adjustment of the clutch will be needed.
This adjustment is only necessary when
there is a reduction or loss of drive. Refer
to the maintenance section in this manual
for recommended intervals.
1. Park riding mower on a level surface.
2. Set parking brake.
3. Remove rear transaxle cover.
4. Using a 9/16th wrench, tighten the clutch
adjustment nut by 1/8th of a turn.
CAUTION: Do not over-tighten the clutch
adjustment nut. Only make as many 1/8th
turns as needed.
Belt
Keeper
Rear
Transaxle
Cover
Clutch
Adjustment
Nut
5. Test riding mower where it will be used
to cut grass.
6. If further adjustment is needed, return to
step 4.
7. After adjustment is completed, replace
rear transaxle cover.
If the clutch adjustment procedure is not ef-
fective, take your riding mower to a qualified
service center for repair and/or adjustment.
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AIR FILTER
Your engine will not run properly using a
dirty air filter. Service air cleaner more often
under dusty conditions. See engine manual.
CLEAN AIR SCREEN
Air screen must be kept free of dirt and chaff
to prevent engine dam age from overheating.
Clean with a wire brush or compressed air to
re move dirt and stub born dried gum fibers.
CLEAN AIR INTAKE/COOL ING AREAS
To ensure proper cooling, make sure the
grass screen, cooling fins, and other exter-
nal surfaces of the engine are kept clean
at all times.
Every 100 hours of operation (more often
under extremely dusty, dirty conditions),
remove the blower housing and other cooling
shrouds. Clean the cooling fins and external
surfaces as necessary. Ensure the cooling
shrouds are re in stalled.
NOTE: Operating the engine with a blocked
grass screen, dirty or plugged cooling fins,
and/or cooling shrouds re moved will cause
engine damage due to overheating.
CLEANING FRICTION SURFACES
To ensure proper drive performance keep
the friction surfaces free from dirt, chaff and
excess rubber at all times.
Every 25 hours of operation, the friction
surfaces need to be rubbed clean with
isopropyl alcohol or other non-filming cleaner.
Engine Plate
Friction Disc
MUFFLER
Inspect and replace corroded muffler and
spark arrester (if equipped) as it could create
a fire hazard and/or dam age.
SPARK PLUG(S)
Replace spark plug(s) at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs first.
Spark plug type and gap setting are shown
in "PROD UCT SPEC I FI CA TIONS" section
of this manual.
CLEANING
• Clean engine, battery, seat, finish, etc. of
all foreign matter.
• Keep finished surfaces and wheels free
of all gasoline, oil, etc.
• Protect painted surfaces with au to mo tive
type wax.
We do not recommend using a garden hose
or pressure washer to clean your riding
mower unless the engine and transmission
are covered to keep water out. Water in en-
gine or transmission will shorten the useful
life of your riding mower. Use compressed
air or a leaf blower to remove grass, leaves
and trash from riding mower and mower.
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