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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°