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5. When the chain is at the wanted tension, tighten the lock
nuts.
During normal saw operation, the temperature of the chain
increases. The drive links of a correctly tensioned warm
chain will hang approximately 1/16 in. (1,58 mm) out of the
bar groove.
1/16 in. (1,58 mm)
11.3
SHARPEN THE CUTTERS
Sharpen the cutters if it is not easy for the chain to go into the
wood.
We recommend that a service center, which has an electric
sharpener, perform important sharpening work.
1. Tensioning chain.
2. Sharpen the cutters corner with a 5/32 in. (4 mm)
diameter round file .
NOTE
NOTE
English
3. Sharpen the top plate, side plate and depth gauge with a
flat file.
4. File all the cutters to the specified angles and the same
length.
During the process,
•
Keep the file flat with the surface to be sharpened.
•
Use the midpoint of the file bar.
•
Use light but firm pressure when sharpening the
surface.
•
Lift the file away on each return stroke.
•
Sharpen the cutters on one side and then move to the
other side.
Replace the chain if:
•
The length of the cutting edges is less than 1/5 in. (5
mm).
•
There is too much space between the drive links and the
rivets.
•
The cut speed is slow
•
Sharpening the chain many times but it does not increase
the cutting speed. The chain is worn.
12
NOTE
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