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17
Rounded
Corner
0.025 inch
(0.65 mm)
Right
Hook Angle
Wrong
Squared O
f
f
Corner
Too Much Hook
A
ngle
WARNING: Maintain the proper
hook angle according to the manufacturer’s
specifications for the chain you are using. Im-
proper hook angle will increase the chance of
kickback which can result in serious injury.
4. Check and lower depth gauges.
Depth Gauge Tool
Depth Gauge
File
S Place gauge tool on cutter.
S If the depth gauge is higher than the
depthgaugetool,fileitleveltothetopof
the depth gauge tool.
S Maintain rounded front corner of
depth gauge with a flat file.
NOTE: The very top of the depth
gauge should be flat with the front
half rounded off with a flat file.
If you require further assistance or are unsure
about performing this procedure, contact your
authorized service dealer or call our customer
assistance help line at 1--800--554--6723.
IGNITION TIMING
Ignition timing is fixed and nonadjustable.
SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better.
1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull off the spark plug boot.
4. Remove spark plug from cylinder and
discard.
5. Replace with Champion RCJ--7 Y spark
plug andtighten with a 3 /4inch (19 mm)
socket wrench. Tighten securely. Spark
plug gapshould be0.025 inch(0.6mm).
6. Reinstall the spark plug boot.
7. Reinstallthecylindercoverand3screws
Tighten securely.
Spark Plug Boot
COOLING SYSTEM
To keep the working temperature as low as
possible the machine is equipped with a
cooling system.
The cooling system consists of:
S Air intake on the starter
S Air guide plate
S Fins on the flywheel
S Cooling fins on the cylinder
S Cylinder cover (directs cold air over the
cylinder)
Clean the cooling system with a brush after
each use, more often in demanding condi-
tions. A dirty or blocked cooling system re-
sults in the machine overheating which
causes damage to the piston and cylinder.
STORAGE
WARNING: Perform the following
steps after each use:
S Allow the engine to cool, and secure the
unit before storing or transporting.
S Store chain saw and fuel in a well venti-
latedarea wherefuelvapors cannotreach
sparksoropenflamesfromwaterheaters,
electric motors orswitches, furnaces, etc.
S Store chain saw with all guards in place
and position chain saw so that any sharp
object cannot accidentally cause injury.
S Store chain saw well out of the reach of
children.
SEASONAL STORAGE
Prepareyourunitforstorageattheendofthe
season orif it willnot be usedfor 3 0days or
more.
If your chain saw is t obe stored for aperiod
of time:
S Clean saw thoroughly before storage.
S Store in a clean dry area.
S Lightly oil external metal surfaces and
guide bar.
S Oilthechain andwrapit inheavy paper or
cloth.
FUEL SYSTEM
Under FUELING ENGINE in the OPERA-
TION section of this manual, see message
labeled IMPORTANT regarding the use of
gasohol in your chain saw.
Fuelstabilizer isanacceptablealternativein
minimizing theformation of fuel gumdepos-
itsduringstorage.Addstabilizertothegaso-
line inthe fueltank or fuelstoragecontainer.