Troubleshooting - Husqvarna 560XPG Workshop Manual

The different faults which may occur on the chain saw are divided into four groups. Within each group
possible operating faults are listed to the left while the probable fault alternatives are listed to the right. The
most likely fault is listed first, etc. See separate instruction for Autotune troubleshooting.
Starting
Difficult to start Air filter blocked
Choke does not work
Worn choke axle
Worn choke valve
Blocked fuel filter
Blocked fuel line
Piston ring is stuck
Blocked impulse channel
Loose or faulty fuel pipe
The carburettor
Hole in diaphragm
leaks fuel
Worn needle/needle tip
Control system sticking
Control system set too high
Leaking control system
(air or fuel)
The cover on the carburettor
pump side is loose
Floods when the
Worn needle/needle tip
engine is not
Control system set too high
running
Control system sticking
Idling (low speed)
Leaking inlet hose (rubber)
Does not idle
Loose carburettor mounting
Loose or faulty fuel pipe
Blocked fuel filter
Blocked fuel line
Tank ventilator blocked
The throttle valve shaft is inert
Throttle stay is binding
Defective throttle return spring
Bent valve axle stop
Faulty diffuser jet
Too rich idling Worn needle/needle tip
Worn lever arm in the control
system
Leaking diaphragm/cover plate

8 Troubleshooting

Idling (low speed) (continued)
Uneven idling
Too much fuel at
idle speed
Troubleshooting
Worn needle/needle tip
Leaking diaphragm/cover plate
Worn lever arm in the control
system
Faulty diffuser jet
Blocked fuel filter
Blocked fuel line
Leaking inlet hose (rubber)
Loose carburettor mounting
Worn throttle valve axle
Loose throttle valve screw
Worn throttle valve
Leaking control system
(air or fuel)
The control system's centre
knob is worn
Hole in diaphragm
Leaking diaphragm/
cover plate
Leaking crankcase
Blocked fuel line
Leaking control system
(air or fuel)
Leaking diaphragm/cover plate
Faulty diffuser jet
Leaking crankcase
Worn needle/needle tip
Leaking diaphragm/
cover plate
English -
58