19
C
E
F
12
13
4/5
30°
All cutters must be sharpened to the same angle, 30°. Different
angles result in a roughly, irregularly running chain, increase
wear and tear and cause chain beakage.
The front rake of the cutter results from the cut depth of the
round Þ le. If the proper Þ le is used in the right manner, the cor-
rect front rake will be obtained automatically.
80° for chain type 092, 492
85° for chain type 466
After having sharpened the chain, the height of the depth limiter
must be checked by means of a chain gauge. See „Accessories“
for the order number.
Correct even the smallest excess height with a special ß at
Þ le (12). See „Accessories“ for the order number.
Round off the front of the depth limiter (13).
The Þ le holder makes Þ le guidance easier. It is marked for the
correct 30° sharpening angle (keep the marks parallel with the
chain when Þ ling, see illustration) and limits the cut depth to
the correct 4/5 of the Þ le diameter. See „Accessories“ for the
order number.
D
Files and how to work with them
Use a special round Þ le for chains (dia. 4 mm) for sharpening
the chain. Normal round Þ les are not appropriate for this work.
See „Accessories“ for the order number.
The Þ le should cut only when pushed forwards (arrow). Lift the
Þ le when leading it backwards.
First sharpen the shortest cutter. The length of this cutter is then
the standerd for all other cutters of the chain.
New saw teeth must be Þ led to the exact same shape as the
used teeth, including on their running surfaces.
File depending on chain type (90° or 10° to the guide bar).
Chain typ
492, 466
Chain typ
092
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