Poulan 220 LE - Manual (Page 13)

13
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.
MAINTENANCE SCHEDULE
Lubricate bar
sprocket hole After each use . . . . . . .
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 arrestor screen
and muffler Every 25 hours* . . . . . . . . .
Replace spark plug Yearly .
Replace fuel filter Yearly . . .
* Hours of Operation
AIR FILTER
CAUTION : Do not clean filter in gasoline
or other flammable solvent to avoid creating
a fire hazard or producing harmful evapora-
tive emissions.
Cleaning the air filter:
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after every
5 hours of operation.
S Clean the cover and the area around it to
keep dirt and sawdust from falling into the
carburetor chamber when the cover is re-
moved.
S Remove the parts as illustrated below.
S Wash the filter in soap and water.
Air Filter
Cylinder
Cover
Screws
Cylinder
Cover
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
WARNING: The muffler on this
product contains chemicals known to the
State of California to cause cancer.
As the unit is used, carbon deposits build up
on the muffler and spark arresting screen,
and must be removed to avoid creating a fire
hazard or affecting engine performance.
Replace the spark arresting screen if breaks
occur.
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of op-
eration or annually, whichever comes first.
Muffler
Gasket
Muffler
Bolts
Muffler
Locknut
Outlet
Guide
Bolt Cover
Backplate
S Loosen and remove the locknut from the
bolt cover.
S Remove the bolt cover.
S Loosen and remove the 2 muffler bolts.
Remove the muffler, muffler gasket, outlet
guide and backplate. Notice the orienta-
tion of these parts for reassembling.
S Locate the 2 outlet cover screws on the
muffler. Loosen and remove both screws.
S Remove the outlet cover.
BACK VIEW OF
MUFFLER
Muffler
Spark Arresting
Screen
Outlet Cover
Screws
S Remove spark arresting screen.
S Clean the spark arresting screen with a wire
brush. Replace screen if any wires are bro-
ken or screen is blocked after cleaning.
S Reinstall spark arresting screen.
S Reinstall outlet cover and 2 screws. En-
sure outlet cover and both screws are re-
installed correctly (see illustrations) to pre-
vent damage to the saw.
The exhaust
outlet must face the chain brake (bar side)
of the saw.
Exhaust Outlet must face chain
brake (bar side) of chain saw
Outlet Cover
Exhaust
Outlet
S Inspect the muffler gasket and replace if
damaged.
S Reinstall backplate, outlet guide, muffler
gasket, and muffler using muffler bolts.
Tighten until secure.
S Reinstall bolt cover and locknut.