Instruction manual

18
F
- The sharpening angle (α) 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 (β) of the cutter results from the cut depth of
the round fi le. If the proper fi le is used in the right manner,
the correct front rake will be obtained automatically.
Files and how to work with them
- Sharpen using a special fi le holder with a saw chain round fi le:
- 086 (.325") chain: File the fi rst cutter half with a 4.8 mm dia.
round saw-chain fi le, then switch to a 4.5 mm dia. fi le.
- 093 (3/8") and 099 (3/8") chain: File the fi rst cutter half
with a 5.5 mm dia. round saw-chain fi le, then switch to a
4.8 mm dia. fi le.
Normal round fi les are not appropriate for this work. See
"Accessories" for the order number.
- The fi le should cut only when pushed forwards (arrow). Lift
the fi 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.
- Always guide the fi le as in Fig. F shown (chain 086 (.325"),
099 (3/8") = 10° and 093 (3/8") = 90°).
E
Chain 086 (.325") 093 (3/8") 099 (3/8")
Sharpening angle α 30° 35° 25°
Front rake β 85° 85° 60°
Chain: 093 (3/8") 099 (3/8"), 086 (.325")
1 2
H
- 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 fl at
fi le (1). See "Accessories" for the order number.
- Round off the front of the depth limiter (2).
I
G
- The fi le holder makes fi le guidance easier. It is marked for
the correct α sharpening angle (keep the marks parallel with
the chain when fi ling, see illustration) and limits the cut depth
to the correct 4/5 of the fi le diameter. See "Accessories" for
the order number.
4/5
α
Cleaning the guide bar
CAUTION:
Protective gloves must be worn!
Regularly inspect the bearing surfaces of the guide bar for
damage, and clean them with a suitable tool.
J