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© 09/2013 ECHO Inc.
MAINTENANCE CS-450
• Place the depth gauge tool firmly on guidebar so that depth
gauge protrudes. Then file top of depth gauge with the flat file
until flat with top of the depth gauge tool.
• One fifth of the file diameter remains above cutter edge.
• Be sure to round off the front edge of the depth gauge.
• Properly filed cutters are shown in illustration.
• When setting of the chain is finished, soak it in oil and wash
away filings completely before using.
• When chain has been filed on the bar, supply sufficient oil to it,
move the chain slowly to wash away the filings before using
again.
• If the chain saw is operated with filings clogged in the groove,
the saw chain and the guide bar will be damaged prematurely.
• If the saw chain becomes soiled with resin, for instance, clean
it with kerosene and soak in it oil.
To sharpen other chains, follow chain manufacturer’s
instructions.
55°
Side plate angle
33SL: 25°
Top plate filing angle
20BPX, 95VP: 30°
0.65 mm (0.025 in.)
Parallel
Depth gauge
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