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C
B
A
B
B
Fig. 17A
SPARK PLUG
NOTE: For efficient operation of saw engine,
spark plug must be kept clean and properly
gapped.
1. Push STOP switch down.
2. Remove knob (A) holding air filter cover in
place, remove the top cover (B) by
loosening the cover retaining screws.
Cover will lift off. (Fig.18A)
3. Disconnect the wire connector (C) from the
spark plug (D) by pulling and twisting at the
same time (Fig. 18B).
4. Remove spark plug with spark plug socket
wrench. DO NOT USE ANY OTHER
TOOL.
5. Check electtrode gaps with wire feeler
gauge and set gaps to .025" (.635mm) if
necessary.
6. Reinstall a new spark plug.
NOTE: A resistor spark plug must be used for
replacement.
NOTE: This spark ignition system meets all
requirements of the Interference-Causing
Equipment Regulations.
C
B
A
Fig. 18A
CARBURETOR ADJUSTMENT
The carburetor was preset at the factory for
optimum performance. If further adjustments
are necessary, please take your unit to the
nearest qualified service technician.
STORING A CHAIN SAW
CAUTION:
Never store a chain saw
for longer than 30 days without performing
the following procedures.
Storing a chain saw for longer than 30 days
requires storage maintenance. Unless the
storage
instructions
are
remaining in the carburetor will evaporate,
leaving gum-like deposits. This could lead to
difficult starting and result in costly repairs.
1. Remove the fuel tank cap slowly to release
any pressure in tank. Carefully drain the
fuel tank.
2. Start the engine and let it run until the unit
stops to remove fuel from carburetor.
3. Allow the engine to cool (approx. 5
minutes).
4. Using a spark plug wrench, remove the
spark plug.
5. Pour 1 teaspoon of clean 2-cycle oil into
D
the combustion chamber. Pull starter rope
slowly several times to coat internal
components. Replace spark plug. (Fig. 19)
NOTE: Store the unit in a dry place and away
from possible sources of ignition such as a
furnace, gas hot water heater, gas dryer, etc.
Fig. 17B
REMOVING A UNIT FROM STORAGE
1. Remove spark plug.
2. Pull starter rope briskly to clear excess oil
from combustion chamber.
3. Clean and gap spark plug or install a new
spark plug with proper gap.
4. Prepare unit for operation.
5. Fill fuel tank with proper fuel / oil mixture.
See FUEL AND LUBRICATION Section.
GUIDE BAR MAINTENANCE
Frequent lubrication of the guide bar (railed
bar which supports and carries the saw
chain) sprocket tip is required. Proper
maintenance of the guide bar, as explained in
this section, is essential to keep your saw in
good working condition.
SPROCKET TIP LUBRICATION:
CAUTION:
new saw has been pre-lubricated at the
factory. Failure to lubricate the guide bar
D
sprocket tip as explained below will result in
poor performance and seizure, voiding the
Fig. 18B
manufacturer's warranty.
Lubrication
recommended after 10 hours of use or once
a week, which ever occurs first. Always
thoroughly clean guide bar sprocket tip
before lubrication.
TOOLS FOR LUBRICATION:
The Lube Gun (optional) is recommended for
applying grease to the guide bar sprocket tip.
The Lube Gun is equipped with a needle
nose tip which is necessary for the efficient
application of grease to the sprocket tip.
TO LUBRICATE SPROCKET TIP:
followed,
fuel
WARNING:
gloves when handling the bar and chain.
1. Press the STOP switch down.
NOTE: It is not necessary to remove the saw
chain to lubricate the guide bar sprocket tip.
Lubrication can be done on the job.
2. Clean the guide bar sprocket tip.
3. Using the Lube Gun (optional), insert
needle nose into the lubrication hole and
inject grease until it appears at outside
edge of sprocket tip (Fig. 20).
-- 12 --
Fig. 19
The sprocket tip on your
of
the
sprocket
tip
Wear heavy duty work
is
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