Sharpening The Saw Chain - Makita DCS 330 TH Owner's And Safety Manual

HL
9
IDLE
10
11
A
B
0,65 mm
(.025")
min.
3 mm (0.11")
C
26
Adjust speed (output) (step 4)
Adjust the speed by adjusting the main jet screw (9) to 11,000
rpm.
Check idle speed (step 5)
After having adjusted the max. speed ensure the idle speed is
set to 2,800 rpm. (the chain must not turn). Use the idle jet
screw (10) to regulate it. Turn in the screw (10) to speed up,
and turn out the screw (10) to speed down the engine.
Check acceleration (step 6)
Now check the acceleration, i. e. the time necessary for
speeding up from idle speed to max. speed. To do this, press
the throttle lever hard.
If the acceleration is too low, turn out the idle jet screw (10)
approx. 1/8 rotation.
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"). Al-
ways 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)!
0,65 mm
All cutters must be of the same length (dimension a). Cutters
(.025")
with different lengths result in rough running of the chain and
can cause cracks in the chain.
Minimum cutter length is 0.11" (3 mm). 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 0.65
mm (.025").
CAUTION: Excessive depth
increases the risk of kickback!
STOP