Husqvarna 325HS75X 用户手册

下载
页码 20
 
6 – 
 
English
 
SAFETY INSTRUCTIONS
 
Check that the throttle control and throttle lock move freely 
and that the return springs work properly.
See instructions under the heading Start. Start the hedge 
trimmer and apply full throttle. Release the throttle trigger 
and check that the blades stop and remain stationary. If 
the blades move when the throttle trigger is in the idle 
position then the carburettor idle setting must be adjusted. 
See instructions under the heading Maintenance.
 
Stop switch
 
Start the engine and make sure the engine stops when 
you move the stop switch to the stop setting.
 
Hand guard
 
Check that the hand guard is fitted correctly.
Check that the hand guard is undamaged.
 
Vibration damping system
 
Regularly check the vibration damping units for cracks or 
deformation.
Make sure the vibration damping units are securely 
attached to the engine unit and handle unit.
 
Muffler
 
Never use a machine that has a faulty muffler.
Regularly check that the muffler is securely attached to 
the machine.
If the muffler on your machine is fitted with a spark 
arrestor mesh this must be cleaned regularly. A blocked 
mesh will cause the engine to overheat and may lead to 
serious damage. Never use a muffler that has a defective 
spark arrestor mesh. 
 
Blades
 
To ensure good cutting results it is important that the contact 
pressure between the blades is correct. The contact pressure 
is adjusted by turning the screws on the underside of the bar 
clockwise as far as they will go. Then turn the screws 
anticlockwise a 1/4 turn. Lock the screws using the locking nut 
on the top of the bar. Check that the screws are loose enough 
to allow the washers under the screw heads to slide sideways.
When the blades are correctly adjusted the play between the 
blades should be 0,2–0,4 mm, measured at the screws. The 
edges of the blades are too hard to be filed. Dull blades 
should be sharpened using a grinder. Replace the blades if 
they are bent or damaged.