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15
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 w ear. Remove these burrs
with a flat file.
S When railtop is uneven, usea flatfile tore-
store square edges and sides.
Correct GrooveWorn G roove
File Rail Edges
and Sides
Square
Replace guide bar when the groove is worn,
the guide bar is bent or cracked, or when ex-
cess heating or burring of the rails occurs. If re-
placement is necessary , use only the guide bar
specified for your saw i n t he repair par ts list or
on the decal located on the chain saw .
CHECK FUEL MIXTURE LEVEL
S See FUELING ENGINE under the OP-
ERA TION section.
LUBRICATION
Bar Oil
Fill Cap
S See GUIDE BAR AND CHAIN OIL under
the OPERA TION section.
INSPECT AND CLEAN UNIT AND
DECALS
S After each use, inspect complete unit for
loose or damaged parts. Clean the unit and
decals using a damp cloth with a mild deter-
gent.
S Wipe off unit with a c lean dry cloth.
CHECK CHAIN BRAKE
See CHAIN BRAKE in the OPERATION
section.
CLEAN AIR FILTER
CAUTION:
Donotcleanfilterin gasolineor
other flammable solvent to avoid creating a
fire hazard o rproducing harmfulevaporative
emissions.
Cleaning the air filter:
A dirty airfilter decreases the life and perfor-
mance of the engine andincreases fuelcon-
sumption and harmful emissions. Always
clean your air filter after 1 0 tanks of fuel or 5
hours of operation, whichever comes first.
Clean more frequently industy conditions.A
used air filter can never be completely
cleaned. It is adv isable to replace your air fil-
ter witha new oneafterevery 50hours ofop-
eration, or annually, w hichever comes first.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
3. Remove air filter cover and air filter.
4. Cleanthe airfilter usinghot soapy water.
Rinsewithcleancoolwater.Air drycom-
pletely before reinstalling.
5. Reinstall air filter and air filter cover.
6. Reinstall cylinder cover and 3 screws.
Tighten securely.
Air Filter
Air Filter
Cover
Cylinder
Cover
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
As the unit is used, carbon deposits buildup
on the muffler and spark arresting screen,
and must be removed to avoid creating afire
hazard or affecting engine performance.
Replacethe spark arresting screen ifbreaks
occur.
Nut
Exhaust
Outlet
Cover
Muffler
Spark
Arresting
Scree n
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of op-
eration or annually, whichever comes first.
1. Loosen and remove the nut from the ex-
haust outlet cover.
2. Remove the exhaust oulet cover .
3. Removespark arrestingscreen. Handle
screen carefully to prevent damag e.
4. Clean the spark arresting screen gently
with a wire brush. Replace screen if
breaks a re found.
5. Replace any broken or cracked muffler
parts.
6. Reinstall spark arresting screen, exhaust
outlet cover , and nut. Tighten nutsecurely.