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MAINTENANCE
16
Ae
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A good maintenance program of regular inspection
and care willincrease the service life and help to main-
tain the safety and performance of your saw.
• Make all adjustments or repairs (except car-
i IIiiiiiii
• -Checkthe saw for loose bolts, screws, nuts and fit-
tings regularly. Loosefastenerscancausean unsafe
conditionaswellas damage toyoursaw,Toolsrequired
are described in "Preparing YourSawForUse.','
A WARNING
buretor adjustments) with:
-- spark plug wire disconnected
--engine cool as opposed to a unit that has just
been run.
QUIDE""iAR AND CHAIN'"
Increase the service life of your Guide Bar and
Chain by:
--Using the saw properly and as recommended
in this manual.
-- Maintaining correctchain tension. See "Chain Ten-
sion"
Proper lubrication. See "Bar and ChainLubricent"
--Regular maintenanceas described in this sec.
tion.
1 CHAIN MAINTENANCE
• Sharpen the chain when:
-- Wood chips are small and powdery, Wood
chips made by the saw chain should be
about the size of the teeth of the chain.
-- Saw has to be forced through the cut,
-- Saw cuts to one side.
CAUTION:IAIways wear gloves when hand-
ling the chain. The chain can be sharp enough to
cut you even though it may be too dull to cut
wood.
Have all chain saw service performed by a qualified
service dealer with the exception of the items listed
in the maintenance section of this manual.
Figure 27
LINE
Figure 28
CUTTERS
SAME LENGTH
/ \.
REMOVE DAMAGE
/\
TOP PLATE SIDE PLATE
a. SHARPENING INSTRUCTIONS
items required:
Gloves Medium Flat File
4.5mmdia. Fite Depth Gauge Tool
6" File Holder Vise
Stop engine and disconnect spark plug.1.)
2.)
3.)
Adjust the chain for proper tension. See
"Chain Tension."
Work at the midpoint of the bar, moving the
chain forward by hand as each cutter is
filed.
4.)
Sharpen cutters.
a.) Position file holderon thetop plate ofthe cutter
and depth gauge as shown in Figure 27.
b.) Hold the file holder level with the 30o guide
mark parallel to the center of the chain
and lower file handle 100. Figure 27.
c.) File from inside toward outside of cutter,
straight across, on forward stroke only. Use
2 or 3 strokes per cutting edge. Figure 28.
d.) Keep all cutters the same length. Figure29.
e.) File enough to remove any damage to cut-
ting edge (side & top plate) ofcutter. Figure
29.
f.) FileP33Schaintomeetspecificationsshown in
Figure 30.
/ I ------
30 °
Figure 29
Figure 30
DEPTH GAUGE TOOL
Figure 31
HOOK IMPROPER SQUARED
' _-_ROU NDEO
CORNER
RIGHT WAY WRONG WAY
Figure 32
,&WARNING
Maintain the proper hook angle according to the
manufacturer's specification for the chain you are
using. Improper hook angle will increase the chance of
kickback which can result in serious injury. Figure
30 &32.