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After sharpening the cutting tools 3 to 4 times, you
must check the height of the depth limiter and, if nec-
essary, use a at le to make this deeper and then
round o the front corner.
Chain Sharpening
m NOTE!: For smooth and safe operation, it is im-
portant that the chain is always sharp. The chain
should be sharpened when:
• Wood shavings are dust-like.
• You have to expend extra power sawing.
• The saw cut is not straight.
• The vibration increases.
• Fuel consumption increases.
m NOTE
We recommend that a professional sharpen the
chain.
Maintaining the chain
Sharpening the chain
Special tools are required to sharpen the chain; these
ensure that the cutting tools are sharpened at the
correct angle and to the correct depth. We recom-
mend that inexperienced chainsaw users have the
saw chain sharpened by a specialist at the nearest
customer service location. If you are condent with
sharpening your own saw chain, procure the special
tools from professional customer service.
Sharpening the chain
Wear safety gloves when sharpening the chain. All
cutting links must have the same width and length af-
ter sharpening.
m NOTICE
A sharp chain generates well-shaped chips. If the
chain starts to generate sawdust, it must be sharp-
ened.
Instructions for sharpening a saw chain:
Chainsaw type
File diameter Upper angle lower angle Upper tilt angle
(55 °) Standard depth
Chucking rotation
angle
Chucking
inclination angle side angle
21PBX approx. 4,8 mm 30° 10° 85° 0,64 mm
depth stop le
