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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
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 arresting screen
and muffler .......... Every 25 hours*
Replace spark plug . Yearly
Replace fuel filter ... Yearly
Hours of Operation -
Each hour of operation is approximately
2 tanks of fuel
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 the Iife and perfor-
mance of the engine and increases fuel con-
sumption and harmfuI emissions. Always
clean your air filter after f Otanks of fuel or 5
hours of operation, whichever comes first
Clean more frequently in dusty conditions A
used air filter can never be completely
cleaned. It is advisable to replace your air fih
tar with a new one after every 50 hours of op-
eration, or annualIy, whichever comes first.
1. Loosen 3 screws on cylinder cover
2. Remove cylinder cover.
3. Remove air fiIter.
4. Clean the air fiIter using hot soapy water.
Rinse with clean cool water. Air dry
completely before reinstalling.
5. Ughtiy oil air fiIter before installing to im-
prove the efficiency of air filter Use
2-cycle engine oil or motor oil (SAE 30).
Squeeze excess oiI from filter
6. Reinstal_ air filter
7. ReinstalI cylinder cover and 3 screws.
Tighten securely.
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
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 ifbreaks
OCCUr
uffler Diffuser
spark
' r2: ti2g
•, o:v::e:rs
Body
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 2 muffler cover
screws.
2 Removethe muffler cover (cover 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
wire brush 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 fac-
ing up.
7 Reinstall muffler cover and 2 screws
Tighten securely
CARBURETOR ADJUSTMENT
,_&WARNING: Thechainwillbemov-
ingduring most of this procedure. Wear your
protective equipment and observe all safety
precautions. The chain must not move at idle
speed
The carburetor has been carefuIly set at the
factory. Adjustments may be necessary if
you notice any of the following conditions:
• Chain moves at idle See IDLE SREED-T
adjusting procedure.
• Saw wiil not idle See iDLE SPEED-T ad-
justing procedure.
Idle Speed-T
AI[ow engine to idle. If the chain moves, idle
is too fast. If the engine stalls, idle is too slow.
Adjust speed until engine runs without chain
movement (idle too fast) or stalling (idle too
slow). The idle speed screw is located inthe
area above the primer bulb and is labeled T
• Turn idle speed screw (T) clockwise to in-
crease engine speed.
• Turn idle speed screw (T) counterclock-
wise to decrease engine speed.
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