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Files and how to work with them

Sharpen using a special le holder with a saw chain round
le. Normal round les are not appropriate for this work. See
"Accessories" for the order number.
File the rst cutter half with a 7/32" (5.5 mm) dia. round saw-chain
le, then switch to a 3/16" (4.8 mm) dia. le.
The le should cut only when pushed forwards (arrow). Lift the
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 led to the exact same shape as the
used teeth, including on their running surfaces.
Always guide the le horizontally (10° to the guide bar).
E
The le holder makes le guidance easier. It is marked for the
correct sharpening angle of 25° (keep the marks parallel with
the chain when ling, see illustration) and limits the cut depth
to the correct 4/5 of the le diameter. See "Accessories" for the
order number.

4/5

F
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 at
le (1). See "Accessories" for the order number.
Round off the front of the depth limiter (2).
D
C
The sharpening angle of 25° must be identical for all cutters!
Different angles result in a roughly, irregularly running chain,
increase wear and tear and cause chain beakage.
The front rake 60° of the cutter results from the cut depth of
the round le. If the proper le is used in the right manner, the
correct front rake will be obtained automatically.

25°