Husqvarna 394 XP Werkstatthandbuch Für Reparaturen Werkstatthandbuch Seite 53

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rpm
U/min
tr/mn
o/min
r/min
rpm
U/min
tr/mn
o/min
r/min
T
L H
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Low speed needle L
Try to find the highest idling speed, turning the low spee
needle L clockwise respectively counter-clockwise. When th
highest speed has been found, turn the low speed needle L 1
4 turn counter-clockwise.
NOTE! If the chain rotates in the idling position, turn the idlin
speed screw counter-clockwise until the chain stops.
Final setting of the idling speed T
Adjust the idling speed with the screw T. If it is necessary t
readjust, first turn the idle speed adjusting screw T clockwise
until the chain starts to rotate.
Then turn, counter-clockwise until the chain stops. A correct
adjusted idle speed setting occurs when the engine run
smoothly in every position.
It should also be good margin to the rpm when the chain start
to rotate.
High speed needle H
The high speed needle H influences the power of the saw.
too lean adjusted high speed needle H (high speed needle
closed too much) gives overrevs and damages the engine. Le
the saw run at full speed for about 10 seconds. Thereafter, tur
the high speed needle H 1/4 turn counter-clockwise.
NOTE! The maximum speed recommended must not b
exceeded.
Correctly adjusted carburettor
A correctly adjusted carburettor means that the saw
accelerates without hesitation and the saw 4-cycles a
little at max speed. Furthermore, the chain must not
rotate at idling. A too lean adjusted low speed needle L
may cause starting difficulties and bad acceleration.
A too lean adjusted high speed needle H gives lower
power=less capacity, bad acceleration and/or damage
to the engine.
A too rich adjustment of the two speed needles L and H
gives acceleration problems or too low working speed
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