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MAINTENANCE
Fine adjustment
When the machine has been
The recommended engine speeds are as follows:
| Max. fast idle speed, | Idle speed, rpm |
| rpm |
|
357XP | 14000 | 2700 |
359 | 13500 | 2700 |
Conditions
•Before any adjustments are made the air filter should be clean and the cylinder cover fitted. Adjusting the carburettor while a dirty air filter is in use will result in a leaner mixture next time the filter is cleaned. This can give rise to serious engine damage.
•Carefully turn the L and
•Now start the machine according to the starting instructions and let it warm up for 10 minutes.
•Place the machine on a flat surface so that the bar points away from you and so that the bar and chain do not come into contact with the surface or other objects.
Low speed jet L
Turn the low speed jet L clockwise until it stops. If the engine accelerates poorly or idles unevenly, turn the low speed jet L anticlockwise until good acceleration and idling are achieved.
+ 1/4
L
Fine adjustment of the idle speed T
Adjust the idle speed with the
WARNING! Contact your servicing
! dealer, if the idle speed setting cannot be adjusted so that the chain stops. Do not use the chain saw until it has been properly adjusted or repaired.
High speed jet H
•The high speed jet H influences the power and engine speed of the machine. If the high speed jet is set too rich
H
•You have now run the machine at settings of H =±0, H=+1/4, H=+1/2 relative to the basic settings. At full throttle the engine has sounded different for each setting. The
CAUTION! To ensure correct adjustment you should enlist a qualified mechanic who has access to a tachometer. The recommended maximum fast idle speed must not be exceeded.
Correctly adjusted carburettor
When the carburettor is correctly adjusted the machine accelerates without hesitation and
If both the L and H jets are set too rich it will results in acceleration problems or too low a working speed.
32 – English