Poulan Pro PB21H42 Operator'S Manual Download

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MAINTENANCE

V-BELTS

Check V-belts for deterioration and wear after 100 hours
of operation and replace if necessary. The belts are not
ad just able. Re place belts if they begin to slip from wear.

TRANSAXLE COOLING

The transmission fan and cooling fi ns should be kept clean
to assure proper cooling.

Do not attempt to clean fan or transmission while engine
is running or while the transmission is hot. To prevent pos-
si ble damage to seals, do not use high pressure water or
steam to clean transaxle.
• Inspect cooling fan to be sure fan blades are intact and

clean.

• Inspect cooling fi ns for dirt, grass clippings and other

materials. To prevent damage to seals, do not use
compressed air or high pressure sprayer to clean cool-
ing fi ns.

TRANSAXLE PUMP FLUID

The transaxle was sealed at the factory and fl uid main te -
nance is not required for the life of the transaxle. Should
the transaxle ever leak or require servicing, contact your
near est au tho rized ser vice center/department.

BATTERY

Your tractor has a battery charging system which is suf fi  cient
for normal use. However, periodic charging of the battery
with an automotive charger will extend its life.
•      Keep battery and terminals clean.
•      Keep battery bolts tight.
•      Keep small vent holes open.
•      Recharge at 6-10 amperes for 1 hour.
NOTE: The original equipment battery on your tractor is
maintenance free. Do not attempt to open or remove caps
or covers. Adding or checking level of electrolyte is not
necessary.
TO CLEAN BATTERY AND TERMINALS
Corrosion and dirt on the battery and terminals can cause
the battery to “leak” power.
•      Remove terminal guard.
•      Disconnect BLACK battery cable fi rst then RED bat-

tery cable and remove battery from tractor.

• Rinse the battery with plain water and dry.
• Clean terminals and battery cable ends with wire brush

until bright.

• Coat terminals with grease or petroleum jelly.
• Reinstall battery (See “CONNECT BATTERY” in the

Assembly sec tion of this manual).

463

CLOSED
AND
LOCKED
POSITION

YELLOW
CAP

DRAIN
TUBE

OIL DRAIN VALVE

FIG. 13

ENGINE

LUBRICATION

Only use high quality detergent oil rated with API service
classifi cation SG-SL. Select the oil’s SAE viscosity grade
according to your expected operating temperature.

NOTE: Although multi-viscosity oils (5W30, 10W30 etc.)
improve starting in cold weather, they will result in increased
oil consumption when used above 32°F. Check your engine
oil level more frequently to avoid possible engine damage
from running low on oil.

Change the oil after every 50 hours of operation or at least
once a year if the tractor is not used for 50 hours in one
year.

Check the crankcase oil level before starting the engine
and after each eight (8) hours of operation. Tighten oil fi ll
cap/dipstick securely each time you check the oil level.

TO CHANGE ENGINE OIL (See Fig. 13)

Determine temperature range expected before oil change.
All oil must meet API service classifi cation SG-SL.
•      Be sure tractor is on level surface.
•      Oil will drain more freely when warm.
•      Catch oil in a suitable container.
•      Remove oil fi ll cap/dipstick. Be careful not to allow dirt

to enter the engine when changing oil.

• Remove yellow cap from end of drain valve and install

the drain tube onto the fi tting.

• Unlock drain valve by pushing inward and turning

coun ter clock wise.

• To open, pull out on the drain valve.

• After oil has drained completely, close and lock the

drain valve by pushing inward and turning clockwise
until the pin is in the locked position as shown.

• Remove the drain tube and replace the cap onto to the

5/8" BOLT
OR PIN

BLADE

CENTER HOLE