44 - English
12250 rpm
Repair Instructions
Basic adjustment for chain saws with ignition system and carburettors without limiters
Adjustment of the L-needle and T-needle.
1. Find the highest idling speed by slowly turning
the L-screw clockwise and counterclockwise.
2. Turn the T-screw until the idling speed is 3 000
rpm.
3. Repeat the procedure in 1 and 2 once again.
4. Turn the L-screw counterclockwise 0,5 of a turn.
5. Adjust the T-screw until the idling speed is 2 700
rpm.
Adjustment of the H-needle.
1. Adjust the H-screw until the maximum engine
speed at full throttle is 12250 rpm.
To ensure that the engine components receive adequate lubrication (running in) the carburettor should be
set to a somewhat richer fuel mixture for the chain saw's first 3-4 running hours. This is done by adjusting
the maximum speed to 600-700 rpm less than the recommended maximum speed. Use tool 530 03 55-60
to adjust the carburettor (L- and H-needle).
4
5
L
3 000 rpm
0.5
2 700 rpm
Fig 47
Fig 48
To Next Page
Loading...
