Sears 358.356090-3.7/20" - Manual (Page 18)

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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.
• Check the saw for loose boits, screws, nuts,
and fittings on a regular basis. Loose fasten­
ers can cause an unsafe condition as well as
damage to 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.
WARNING!
All chain saw service, repair, adjustments and
maintenance not described in this manual should
be performed by your Sears Service Center.
A. guide BAR AND CHAIN
Increase the service life of your Guide Bar and
..........Chain-by;...................................................... .............. ...
—Using the saw properly and as recommended
in this manual.
—Maintaining correct Chain Tension, pages.
—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 to one side.
SUPPORT
1_
ROUND
\ FILE
FLAT SIDE
Ttn jä DEPTH
OF FI LE HOLDE R i ..........
ON TOP OF CUTTER '
TOP PLATE
^^GUAGE
SIDE PLATE^
Figure 38
1 .)
2 .)
3. )
4. )
5.)
18 Figure 40
ICAUTION:! Wear protective gloves when han­
dling the chain. The chain can be sharp
enough to cut you even though it is too dull to
cut wood.
a. SHARPENING INSTRUCTIONS — Model
358.356090 only (For Power Sharp? Model
358.356100, see page 12)
Items required:
Gloves Medium file
7/32” file Depth Gauge Tool
6” file holder Vise
Stop engine.
Adjust the chain for proper tension,
page 8.
Clamp bar in a vise to hold chain
steady.
Do not clamp chain.
Work at the midpoint of the bar, moving
the chain forward by hand as each cut­
ter is filed.
Sharpen cutters.
Support flat side of file holder {with
7/32" round file) on cutter top plate.
Figure 38.
Hold the file holder level with the
30° guide mark parallel to the
center line of the bar. Figure 39.
File from inside toward outside of
cutter, straight across, in one direc­
tion only. Use 2 or 3 strokes per cut­
ting edge. Figure40.
Correct Depth Gauges.
a. ) Place depth gauge (Catalog No. 71­
36557) tool over each cutter depth
gauge. Figure 41.
b. ) File level with the flat file if depth
gauge is higher than the depth
gauge tool.
Maintain rounded frönt corner of
depth gauge with a flat file. Figure4l.
NOTE: The very top of the depth
gauge should be fiat 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.
Always replace the worn sprocket
when installing a new chain to avoid
excessive wear to the chain.
a.)
b.)
c.
6 .)
c.)
3.)