Hitachi CS25EC Bedienungsanleitung Seite 14

CHAIN SHARPENING Parts of a cutter.
(Fig. 4-1, 2)
WARNING!
Gloves should be used when sharpening
chain.
WARNING!
Be sure to round off the front edge to reduce
the chance of kickback or tie-strap
breakage.
1. Top plate
2. Working corner
3. Side plate
4. Gullet
5. Heel
6. Chassis
7. Rivet hole
8. Toe
9. Depth gauge
10. Correct angle on top plate (degree of angle
depends on chain type)
11. Slightly protruding "hook" or point (curve on
non-chisel chain)
12. Top of depth gauge at correct height below
top plate
13, Front of depth gauge rounded off
Fig. 4-1
Fig. 4-3
Fig. 4-5
LOWERING DEPTH GAUGES WITH A FILE
1) If you sharpen your cutters with a file holder,
check and lower the depth.
2) Check depth gauges every third sharpening.
3) Place depth gauge tool on cutter. If depth
gauge projects, file it level with the top of the
tool. Always file from the inside of the chain
toward an outside cutter. (Fig. 4-3)
4) Round off front corner to maintain original
shape of depth gauge after using depth
gauge tool. Always follow the recommended
depth gauge setting found in the
maintenance or operator manual for your
saw. (Fig. 4-4)
GENERAL INSTRUCTIONS FOR FILING
CUTTERS
File (1) cutter on one side of the chain from the
inside out.
File on forward stroke only. (Fig. 4-5)
5) Keep all cutters the same length. (Fig. 4-6)
Fig. 4-2
Fig. 4-4
Fig. 4-6
GB-13
G
B