Advertisement
MAINTENANCE
SCHEDULE
FIGURE 22
m
x
Check for loose fasteners & parts
x
Checkfor,_damaged o r worn parts
Check chai_tension
X
x
Check chainsharpness
X
:_efill .barand chainoil
X
Inspectbar
.?.lean enginecoolingfins
X
_leanair filter& pre-filter
X
Replace sparkplug
X
Cleanfuel filter
X
Inspect muffler
X
Cleanspark arrestor
X
CHECK FOR LOOSE FASTENERS
& PARTS
Check all fasteners, including nuts, bolts, screws and
clamps, to insure that they are tight and secure, If not,
make all necessary adjustments prior to using chain
saw.
CHECK FOR DAMAGED OR WORN PARTS
Replacement of damaged or worn parts should be
referred to your Sears Service Center
•
On-Off Switch - Check function of the switch by
running the saw then turning the switch to the "off"
position. The engine should stop; then turn to the
"on" position and restart.
•
Fuel Tank & Oil Tank - Do not use the saw if oil or
fuel leaks from the unit. NOTE: It is normal for a
small amount of oil to drip from the bar and the
side where the chain adjustment pin is located.
CHECK CHAIN TENSION
If the chain is too loose it can come off the bar and
possibly cause injury. DO NOT operate the saw if the
chain is loose. To set your chain to the proper tension
refer to Chain Tension in the Service and Adjustment-
section.
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A dull chain makes
a sawdust powder and cuts slowly. Chain sharpening
requires special tools. You can purchase sharpening
tools at Sears or go to a professional chain sharpener.
REFILL BAR AND CHAIN OIL
Your saw will use approximately one tank of bar oil for
every tank of fuel mix. Always fill bar oil tank when you
fill the fuel tank. For maximum bar and chain life, we
recommend you use Craftsman chain saw bar oil. If
Craftsman bar oil is not available, you may use a high
quality bar and chain oil. CAUTION: Only use bar and
chain oil; do not use motor oil. Motor oil will damage
the saw.
INSPECT BAR
Keep bar rails square and flat. Check for inside groove
wear as follows. Place a straight edge (Fig. 23, A)
against side of bar and one cutter. If there is clearance
(Fig. 23, B) between bar and straight edge, the bar
rails are good. If the chain leans (Fig._24) and there is
no clearance between bar and straight'edge (Fig. 24,
B), the bar rails are wom. Straightening worn bars,
under certain circumstances, can only be done by
service technicians. Replace bar if un-repairable.
IMPORTANT:
To prevent One-sided wear of the bar,
flip the bar over after each chain sharpening.
RGURE 23
RGURE 24
r---1
ii
.-.%,.._
M
Good
_.j. ,._
M
Wom
WARNING: Be Sure chain is properly tensioned. A
sagging chain (Fig. 25) can jump out of the bar groove
and even break.
FIGURE 25
Sagging chain
1]
Advertisement
