Maintenance; Sharpening The Saw Chain - Makita DCS34 Instruction Manual

A
0.64 mm
(.05")
min.
3 mm (0.11")
B
C
8

MAINTENANCE

Sharpening the saw chain

CAUTION: Before doing any work on the guide bar or chain,
always switch off the engine and pull the plug cap off the
spark plug (see „Replacing the spark plug"). Always wear
protective gloves!
The chain needs sharpening when:
The sawdust produced when sawing damp wood looks like
wood flour.
The chain penetrates the wood only under great pressure.
The cutting edge is visibly damaged.
The saw is pulled to the left or right when sawing. This is caused
by uneven sharpening of the chain.
Important: Sharpen frequently, but without removing too
much metal!
Generally, 2 or 3 strokes of the file will be enough.
Have the chain resharpened at a service centre when you have
already sharpened it yourself several times.
Proper sharpening:
CAUTION: Use only chains and guide bars designed for
this saw (see the Extract from the spare-parts list)!
0.64 mm All cutters must be of the same length (dimension a). Cutters
with different lengths result in rough running of the chain and
(.05")
can cause cracks in the chain.
Minimum cutter length is 3 mm (0."). Do not resharpen the
chain when the minimum cutter length has been reached; at
this point, the chain must be replaced (see the Extract from the
spare-parts list and „Replacing the chain").
The depth of the cut is determined by the difference in height
between the depth limiter (round nose) and the cutting edge.
The best results are obtained with a depth-limiter depth of
0.64 mm (.05").
CAUTION: Excessive depth
increases the risk of kickback!
All cutters must be sharpened to the same angle, 30°. Different
angles result in a roughly, irregularly running chain, increase
wear and tear and cause chain beakage.
The 85° front rake of the cutter results from the cut depth of
the round file. If the proper file is used in the right manner, the
correct front rake will be obtained automatically.