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Stihl MSA 220 C Manual De Instrucciones página 55

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24 Inspection and Maintenance
► Work carefully. Do not file the depth gauge too low. A
depth gauge that is too low must be replaced or
sharpened by an authorized STIHL servicing dealer, as it
can increase the kickback tendency of the chain saw and
can increase kickback forces.
2
4
STIHL chain is manufactured with wear marks to help the
operator identify excessive wear. The wear marks depicted
above (1 - 4) must remain visible.
► Replace the chain if any wear marks are no longer visible.
► Check the 30° sharpening angle of the cutters with a
STIHL file gauge matching the pitch of the chain.
► If the sharpening angle is incorrect, file the cutters to a 30°
angle.
► If you are unable to achieve the proper angle, or suspect
you have not achieved the proper angle, have the chain
sharpened by an authorized STIHL servicing dealer.
An improperly filed chain can be very dangerous. It can
increase the potential for reactive forces, including kickback,
and also increase the magnitude of those reactive forces.
0458-795-8621-C
1
3
The chain pitch marking (a) is embossed in the area of the
depth gauge of each cutter.
The markings mean the following:
Marking (a)
1
2
3
4
6
7
To sharpen the chain:
► Switch off the chain saw, engage the chain brake and
remove the battery.
► Select a chain file with a diameter matching the pitch of
the chain.
Other files are unsuitable and can result in improperly filed
chain, which can increase the potential and force of
kickback and other reactive forces.
► Clamp the guide bar if necessary to make filing easier.
► To advance the chain, first disengage the chain brake,
@ 16.2.
► Use a file holder.
File holders have markings that indicate the proper
sharpening angle.
English
a
Saw Chain Pitch
1/4"
.325"
3/8"
.404"
3/8" PICCO
1/4" PICCO
53

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