Husqvarna 325HS75 Operator's Manual

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MAINTENANCE
Adjusting the idle speed, T
Adjust the idling speed with
the screw T, if it is necessary
to readjust. First turn the
idle speed adjusting screw T
clockwise until the blades
stalt moving. Then turn the
screw anti-clockwise until
the blades stop. The idle
speed is correctly adjusted
when the engine runs
smoothly in every positiorL
There should also be a good
margin to the rpm at which
the blades start to move.
T
WARNING! Contact your dealer/setwice workshop if the idle
speed setting cannot be adjusted so that the blades stop. Do
not use the machine until it has been properly adjusted or
repaired.
High speed needle
H
The high speed needle
affects the machirm's power,
speed, temperature and fuel
consumption. A too lean
adjustment on the high
speed needle H (the high
speed needle H is screwed in
too much) gives a too high
speed resulting in engine
damage. Do not allow the
engine to run at full speed
for more than 10 seconds.
Apply full throttle and turn
the high speed needle H
slowly anticlockwise until
the engine runs unevenly.
The high speed needle H is
then turned slowly
clockwise a little until the
engine runs smoothly.
Note the engine should be
run unloaded when
adjusting the high speed
needle.
H
The high speed needle is adjusted correctly when the machine
"splatters" a little. If the machine smokes heavily at the same
time as it °splatters" heavily the adjustment is too rich.
NOTE! For optimum setting of the carburetor, contact a
qualified servicing dealer who has a revolution counter at his
disposal.
Correctly adjusted carburetor
When the carburettor is correctly adjusted the machine will
accelerate without hesitation and the engine will splutter a
little at maximum speed. The blades must not move when
the engine is idling. If the low speed needle is set for too lean
a mixture it can cause starting problems and poor accelera_
lion.
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.
English - 15