Husqvarna 455 用户手册

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页码 44
English
 – 19
STARTING AND STOPPING
Starting and stopping
Cold engine
Starting: The chain brake should be activated when starting 
the chain saw. Activate the chain brake by pushing the front 
hand guard forwards.
Ignition; choke (A): Set the choke control in the choke 
position. This should automatically set the stop switch to the 
start position.
Start throttle: The correct choke/start throttle setting is 
obtained by moving the control to the choke position.
Air purge (B): Press the air purge repeatedly until fuel begins 
to fill the bulb. The bulb need not be completely filled.
Decompression valve (C): Press the valve to reduce the 
pressure in the cylinder and make starting easier. You should 
always use the decompression valve when starting the 
machine. Once the machine has started the valve will 
automatically return to its original setting.
Warm engine
Use the same procedure as for starting a cold engine but 
without setting the choke control in the choke position. The 
correct choke/start throttle setting is obtained by moving the 
choke control to the choke position and then pushing it in 
again.
Starting
Grip the front handle with your left hand. Hold the chain saw 
on the ground by placing your right foot through the rear 
handle. Pull the starter handle with your right hand and pull 
out the starter cord slowly until you feel a resistance (as the 
starter pawls engage) then pull firmly and rapidly. Never wrap 
the starter cord around your hand
As the chain brake is still activated the engine must return to 
idling speed as soon as possible by disengaging the throttel 
latch in order to avoid unnecessery wear on the clutch 
assembly.
Push in the choke control as soon as the engine fire and make 
repeated starting attempts. Immediately press and release 
the throttle when the engine starts. That will disengage the 
throttle latch.
CAUTION! Do not pull the starter cord all the way out and do 
not let go of the starter handle when the cord is fully extended. 
This can damage the machine.
!
WARNING! Note the following before 
starting:
The chain brake must be engaged when the 
chain saw is started to reduce the chance of 
contact with the moving chain during 
starting. 
Never start a chain saw unless the bar, chain 
and all covers are fitted correctly. Otherwise 
the clutch can come loose and cause 
personal injuries.
Place the machine on firm ground. Make 
sure you have a secure footing and that the 
chain cannot touch anything.
Keep people and animals well away from the 
working area.
B
A
C