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14
SERVICE
WARNING: Disconnect the spark
plug before performing maintenance except
for carburetor adjustments.
Werecommend allservice andadjustments
not listed i n this manual be per formed by an
authorized service dealer .
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...
Fo r 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...
*HoursofOperation
AIR FILTER
CAUTION
: Do not clean filter ingasoline
or other flammable solvent toavoid 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 15
tanks of fuel or 5 hours of operation, which-
ever comes first. Clean more frequently in
dusty conditions. Ausedairefiltercannever
be completely cleaned. It is advisable tore-
placeyourairfilterwithanewoneafterevery
50hoursofoperation,orannually,whichever
comes first.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover .
3. Remove air filter.
4. Cleanthe airfilter usinghotsoapy water.
Rinsewithcleancoolwater. Airdrycom-
pletely before reinstalling.
5. Reinstall air filter.
6. Reinstall cylinder cover and 3 screws.
TIghten securely.
Air Filter
Air Filter
Screws
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
As theunit isused, carbondeposits build up
on the muffler and spark arresting screen,
andmustberemovedtoavoidcreating afire
hazard or af fecting engine performance.
Replacethespark arrestingscreen ifbreaks
occur.
CLEANING THE SPARK
ARRESTING SCREEN
Clean every 25 hours of operation or annually ,
whichever comes first.
Muffler
Gasket
Muffler
Bolts
Muffler
L
ocknut
Steel
Backplate
Bolt Cover
Aluminum
Backplate
1. Loosenand r emove t he3 cylinder cover
screws. Remove the cylinder cover .
2. Pull of f the spark plug boot.
3. Loosenand r em ovethe locknutfromthe
bolt cover. Remove the bolt cover.
4. Loosen and remove the 2 muffler bolts.
Removethemufflerandbackplates. No-
tice the orientation of these parts for re-
assembling.
5. Locate the 2 outlet cover screws on the
muffler. Loosen and remove both
screws. Remove the outlet cover and
spark arresting screen.
Outlet Cover
Spark Arresting
Screen
Screws
Muffler
B
A
C
K
VIEW OF MUFF
L
ER
6. Clean the spark arresting screen with a
wire brush. Replace screen if any wires
are broken or screen is blocked after
cleaning.
7. Reinstall spark arresting screen.
8. Reinstall outletcover and2screws. En-
sureoutletcoverandbothscrews a rere-
installed correctly to prevent damage to
the saw (see illustrations). The exhaust
outlets must face the chain brake (bar
side) of the saw.