Husqvarna HEDGE TRIMMER ATTACHMENT - Manual (Page 10)

10
– English
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 cutting
attachment starts to rotate/
move.
Then turn, counter-clock-
wise until the cutting
attachment stops. A correctly
adjusted idle speed setting
occurs when the engine runs
smoothly in every position.
It should also be good
margin to the rpm when the
cutting attachment starts to
move.
CAUTION! Contact your servicing dealer, if the idle speed
setting cannot be adjusted so that the cutting attachment
stops. Do not use the machine until it has been properly
adjusted or repaired.
Correctly adjusted carburettor
A correctly adjusted carburettor means that the machine
accelerates without hesitation and the machine 4-cycles a little
at max speed. Furthermore, the cutting attachment must not
rotate/move 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.
H
when the machine ‘splatters’ a little . If the machine smokes
heavily at the same time as it ‘splatters’ heavily the adjustment
is too rich.
The high speed needle affects
the machine’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. Therefore dismantle
the cutting equipment, nut,
support flange and disc drive
before adjusting the high
speed needle. The high speed
needle is adjusted correctly
NOTE! For optimum setting of the carburettor, contact a
qualified servicing dealer who has a revolution counter at his
disposal.
High speed needle H
L
+ 1/4
MAINTENANCE
Gearbox
There are three grease
nipples (A) on the gearbox.
Use a grease gun to top up
with grease. This should be
carried out after approxi-
mately every 20 working
hours. Use Husqvarna special
grease, No. 503 98 96-01.
Note that the gearbox must
not be filled completely
with grease. The grease
expands as the machine
heats up during operation.
If the gearbox was com-
pletely filled with grease it
could damage the seals and
lead to leakage.
The lubricant in the gearbox
does not normally need to be
replaced other than with
repair.
Cleaning and
lubrication
After you have used the
machine clean any resin and
plant residue from the blades
using cleaning agent 531 00
60-75 (UL22).
Always lubricate the blade
runners with special grease
531 00 60-74 (UL 21)
before use.