15
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.
GENERAL RECOMMENDATIONS
The warranty on this unit does not cover items
that have been subjected to operator abuse or
negligence. To receive full value from the war-
ranty, the operator must maintain unit as in-
structed in this manual. Various adjustments
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 and helps 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 a small amount of oil
to appear under the saw after engine stops.
Do not confuse this with a leaking oil tank.
S
ON/STOP Switch -- 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 not use saw if oil tank shows
signs of damage or leaks.
CHECK FOR LOOSE
FASTENERS AND 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 SHARPENING.
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 time
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 bar and sprocket hole.
To maintain guide bar:
S
Move ON/STOP switch to STOP.
S
Loosen and remove bar knob completely by
lifting lever and turning counterclockwise.
S
Loosen chain tension by turning adjusting
wheel (upward direction). Remove clutch
cover.
S
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 of rail wear. Remove these burrs
with a flat file.
S
When rail top is uneven, use a flat file to re-
store square edges and sides.
Correct Groove
Worn 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 of the rails occurs. If re-
placement is necessary, use only the guide bar
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-
ERATION section.
LUBRICATION
Bar Oil
Fill Cap
S
See GUIDE BAR AND CHAIN OIL under
the OPERATION section.
