HL
9
IDLE
10
11
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)
A
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 STOP
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.
B
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min.
3 mm (0.11”)
C
Proper sharpening:
CAUTION: Use only chains and guide bars designed for this saw (see the Extract from the
All cutters must be of the same length (dimension a). Cutters 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
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
CAUTION: Excessive depth increases the risk of kickback!
26
