Stihl MSA 120 C Manual De Instrucciones página 54

English
WARNING
Never use a dull or damaged saw chain. This leads to
increased physical strain, increased vibration load,
unsatisfactory cutting results and increased wear. If the
chips from cutting are fine, more like saw dust than wood
chips, the chain likely is dull.
► Switch off the chain saw, engage the chain brake and
remove the battery.
2
► Check the height of the depth gauge (1) with a STIHL file
gauge (2) matching the pitch of the saw chain.
► If the depth gauge protrudes higher than the file gauge,
file the depth gauge to the appropriate height.
► 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
52
1
1
3
STIHL saw 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 saw 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 saw chain.
► If the sharpening angle is incorrect, file the cutters to the
a 30° angle.
► If you are unable to achieve the proper angle, or suspect
you have not achieved the proper angle, have the saw
chain sharpened by an authorized STIHL servicing dealer.
An improperly filed chain can be very dangerous and
increase the tendency of the chain saw to kickback and can
increase kickback and other reactive forces.
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
24 Inspection and Maintenance
a
Saw Chain Pitch
1/4"
.325"
3/8"
.404"
3/8" PICCO
1/4" PICCO
0458-716-8621-D