14
dusty conditions. Aused aire filter can never
be completely cleaned. It is advisable tore-
place your air filter with a new one after every
50hours of operation, orannually, whichever
comes first.
1. Loosen 3 screws on cy linder cover.
2. Remove cylinder cover.
3. Remove air filter.
4. Clean the air f ilter using hot s oapy water.
Rinsewit h clean cool water. Air dry com-
pletely before reinstalling.
5. Lightly oil air filter before installing toim-
prove the efficiency of air filter. Use
2--cycleengine oil or mot or oil (SAE 30).
Squeeze excess oil from filter.
6. Reinstall air filter.
7. Reinstall c ylinder cover and 3 screws.
TIghten securely.
Air Filter CylinderCover
Screws
Cylinder
Cover
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
Ast he unit is used, carbon deposits buildup
on the muffler and spark arresting screen,
andmust be removed to avoid creating a fire
hazard or affecting engine performance.
Replace the spark arresting screen if breaks
occur. MufflerDiffuser
Muffler
Cover
Screws
Muffler
Cover
Muffler
Body
Spark
Arresting
Screen
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of op-
eration or annually, whichever comesfirst.
1. Loosen and remove the 2 muffler cover
screws.
2. Remove the muffler cover (c over snaps
off muffler body).
3. Remove muffler diffuser and spark ar-
resting screen assembly. Notice the
orientation of these parts for reassem-
bling.
4. Clean the spark arresting screen with a
wirebrus h. Replace screen if breaks are
found.
5. Replace any broken or cracked muffler
parts.
6. Reinstall diffuser and spark arresting
screen assembly with round holes facing
up.
7. Reinstall m uffler cover and 2 screws.
Tighten securely.
CARBURETOR ADJUSTMENT
WARNING: Thec hain will be mov-
ing during most of this proc edure. Wear your
protective equipment and observe allsafety
precautions. The chain must not move at idle
speed.
The carburetor has been carefully set at the
factory. Adjustments may be necess ary if
you notice any of the following c onditions:
SChain moves at idle. See IDLE SPEED--T
adjusting procedure.
SSawwi ll not idle. See IDLE SPEED --T ad-
justing procedure.
Idle Speed--T
Allow engine to idle. If the chain moves, idle
istoo fast. Ifthe engine stalls , idle is too slow.
Adjust speed until engine runs without chain
movement (idle too fast) or stalling (idletoo
slow). The idle speed screw is loc ated in the
area above the primer bulb and is labeled T.
STurn idle speed screw (T)clockwi se toin-
crease engine speed.
STurn idle speed screw (T) counterclock-
wise to decrease engine speed.
If you require further assistance or are unsure
about performing this procedure, contact your
authorized service dealer or call
1--800--554--6723.
BAR MAINTENANCE
If your saw cuts to one side, has to be forced
through the cut, or been run with an improper
amount of bar lubrication it may be neces-
saryto service your bar. A worn bar will dam-
age your chain and make cutting difficult.
After each use, ensure ON/ST OP switch is
int he STOP position, then clean allsawdust
from the guide bar and sprocket hole.
Tomaintain guide bar:
SMove ON/STOP switch to the STOP posi-
tion.
SLoosen and remove chain brake nuts and
chain brake. Remove barand chai nfrom
saw.
SClean the oil holes and bar groove aft er
each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Oil Holes
SBurring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat file.
SWhenrail top is uneven, usea flat file to re-
store square edges and sides.