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15
instructed in this manual. Various adjust-
ments will need to be made periodically 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 a nd he lps 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 asmallamount ofoil
to appear under the saw after engine stops.
Do not confuse this with a leaking oil tank.
S ON/ST OP Swi tch -- 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 notusesaw ifoil tank shows
signs of damage or leaks.
CHECK FOR LOOSE
FASTENERS A ND 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 SHAR PEN ING.
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 tim e
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 ba r and sprocket hole.
To maintain guide bar:
S MoveON/STOPswitchtoSTOP.
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 o f rail wear. Remove these burrs
with a flat file.
S When railtop i suneven,useaflatfile tore-
store square edges and sides.
Correct GrooveWorn Groove
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 ofthe rails occurs. If re-
placement is necessary, use only the guidebar
specified for your saw in the repair parts 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 OPERATION 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 clean dry cloth.
CHECK CHAIN BRAKE
See CHAIN BRAKE in the OPERATION
section.
CLEAN AIR FILTER
CAUTION:
Do notclean filterin gasolineor
other flammable solvent to avoid creating a
fire hazardor producing harmfulevaporative
emissions.
Cleaning the air filter:
A dirty air filter decreases the life and perfor-
mance of the engineand increases fuelcon-
sumption and harmful emissions. Always
clean your air filter after 10 tanks of fuel or 5
hours of operation, whichever comes f irst.
Clean more frequently in dusty conditions.A
used air filter can never be completely
cleaned. It is advisable to replace your airfil-
ter witha newoneafterevery 50hours ofop-
eration, or annu ally, whichever comes first.
1. Loosen 3 screws on cylinder cover .
2. Remove cylinder cover .
3. Remove air filter cover and air filter.
4. Clean theair filterusinghotsoapy water.
Rinsewith cleancool water.Airdrycom-
pletely before reinstalling.
5. Reinstall air filter and air filter cover.