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MAINTENANCE
18
A good maintenance program of regular inspec-
tion and care will increase the service life and help
to maintain the safety and performance of your
saw.
• Make all adjustments or repairs (except car-
buretor adjustments) with:
spark plug wire disconnected
engine cool as opposed to a unit that has
just been run.
• Check the saw for loose bolts, screws, nuts,
and fittings on a regular basis. Loose fasten-
ers can cause an unsafe condition as well as
damage to your saw.
WARNING! t
All chain saw service, repair, adjustments and
maintenance not described in this manual should
be performed by your Sears Service Center.
GUIDE BAR AND CHAIN
IncreaSe the service life of your Guide Bar and
.....--Using the saw properly and as recommended
in this manual. -_
--Maintaining correct Chain Tension, page8.
--Proper lubrication, page 9.
--Regular maintenance as 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 toone side
ROUND
_ _ FILE
SUPPORT = _ _//
FLAT SIDE _ _ _ DEPTH
OF FILE HOLDER _GUAGE
O1_TOP OF CUTTER T __
TOP PLA]'E
' . .. SIDE PLATE -o
Figure 38 .........
KEEP 30°MARK
PARALLEL
TO THE
CENTER OF
THE GUIDE
BAR
Figure 39
Figure 40
[CAUTION:i Wear protective gloves when han-
dling the chain, The chain can be sharp
": ;_.:
a. SHARPENING INSTRUCTIONS --Model
358.356090 only (For Power Sharp_i Model
358.356100, see page 12) ....
Items required:
Gloves Medium file .
7!32". file Depth Gauge Tool
6" file holder Vise
1.) Stop engine.
2.) Adjust the chain for proper tension,
page 8.
3.) Clamp bar in -a :vise to hold chain
steady. Do not clamp chain.
4.) Work at the midpoint of the bar, moving
the chain forward by hand as each cut-
ter is filed.
5.) Sharpen cutters.
a.) Support flat side of file holder (with
7/32" round file) on cutter top plate.
Figure38.
b.) Hotd the file holder level with the
30° guide mark parallel to the
.center line of the bar.Figure 39.
c.) _File from inside toward outside of
cutter, straight across, _in one direc-
tion only. Use 2 or 3 strokes per cut-
ting edge. Figure40.
6.) Correct Depth Gauges. .....
a.) Place depth gauge(Catal0g No. 71-
36557) tool over each cutter depth
gauge. Figure41.
b.) FiJe level with the fiat fiJe if depth
gauge is higher than the depth
gauge tool.
c.) Maintain rounded front corner of
depth gauge with a fiat file. Figure41.
NOTE: The very top of the depth
gauge should be flat with the front
half rounded off with a flat file.
b. CHAIN REPLACEMENT
1.)_ Replace the chain when cutters or links
break.
2.) See your Sears Service Center to
replace and sharpen individual cutters
to match your chain.
3.) Always replace the worn sprocket
when installing a new chain to avoid
excessive wear to the chain.