Poulan Pro PP4218AV, Instruction Manual

Page: 15 / 68

15
SERVICE
WARNING:
Disconnect the spark
plug before performing maintenance except
for carburetor adjustments.
We recommend all service and adjustments
not listed in this manual be performed by an
authorized or Master Service Dealer.
HELPFUL TIP
IMPORTANT:
Have all
repairs other than the rec-
ommended
maintenance
described in the instruction
manual performed by an
authorized service dealer.
If any dealer other than an authorized
service dealer performs work on the
product, Poulan PRO may not pay for
repairs under warranty. It is your re-
sponsibility to maintain and perform
general maintenance.
MAINTENANCE SCHEDULE
Check:
Fuel mixture level Before each use . . . .
Bar lubrication Before each use . . . . . . .
Chain tension Before each use . . . . . . .
Chain sharpness Before each use . . . . .
For damaged parts Before each use . . .
For loose caps Before each use . . . . . .
For loose fasteners Before each use . . .
For loose parts Before each use . . . . . .
Inspect and Clean:
Bar Before each use . . . . . . . . . . . . . . . .
Complete saw After each use . . . . . . .
Air filter Every 5 hours* . . . . . . . . . . . . .
Chain brake Every 5 hours* . . . . . . . . .
Spark arresting screen
and muffler
Every 25 hours* . . . . . . . . . .
Replace spark plug Yearly .
Replace fuel filter Yearly . . .
* Hours of Operation -
Each hour of operation is approximately
2 tanks of fuel.
GENERAL RECOMMENDATIONS
The warranty on this unit does not cover
items that have been subjected to operator
abuse or negligence. To receive full value
from the warranty, the operator must main-
tain unit as instructed in this manual. Various
adjustments will need to be made periodical-
ly to properly maintain your unit.
S
Once a year, replace the spark plug, air filter,
and check guide bar and chain for wear. A
new spark plug and air filter assures proper
air-fuel mixture and helps your engine run
better and last longer.
CHECK FOR DAMAGED OR
WORN PARTS
Contact an authorized service dealer for re-
placement of damaged or worn parts.
NOTE:
It is normal for a small amount of oil
to appear under the saw after engine stops.
Do not confuse this with a leaking oil tank.
S
ON/STOP Switch - Ensure ON/STOP
switch functions properly by moving the
switch to the STOP position. Make sure en-
gine stops; then restart engine and continue.
S Fuel Tank - Do not use saw if fuel tank
shows signs of damage or leaks.
S Oil Tank - Do not use saw if oil tank shows
signs of damage or leaks.
CHECK FOR LOOSE
FASTENERS AND PARTS
S
Bar Nuts
S Chain
S
Muffler
S Cylinder Shield
S Air Filter
S
Handle Screws
S Vibration Mounts
S
Starter Housing
S Front Hand Guard
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A dull
chain makes a sawdust powder and cuts
slowly. See CHAIN SHARPENING.
CHECK GUIDE BAR
Conditions which require guide bar mainte-
nance:
S Saw cuts to one side or at an angle.
S
Saw has to be forced through the cut.
S
Inadequate supply of oil to bar/chain.
Check the condition of guide bar each time
chain is sharpened. A worn guide bar will
damage the chain and make cutting difficult.
After each use, ensure ON/STOP switch is
in the STOP position, then clean all sawdust
from the guide bar and sprocket hole.
To maintain guide bar:
S
Move ON/STOP switch to STOP.
S Loosen and remove bar nuts and clutch
cover. Remove bar and chain from saw.
S
Clean the oil holes and bar groove after
each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Oil Holes
S Burring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat file.
S
When rail top is uneven, use a flat file to re-
store square edges and sides.
Correct Groove Worn Groove
File Rail Edges
and Sides
Square