Husqvarna 560XPG - 7.39 Troubleshooting

English - 41
Repair Instructions
7.38 Handle heater and carburettor
heater (560XPG, 562XPG)
Certain chain saw models can be fitted with a
handle heater and a carburettor heater and
comprise the following:
• Generator
• Power switch
• Heating element in the rear handle
• Handle bar with heating element
• Carburettor heating element
• Thermostat
7.39 Troubleshooting
It is possible to troubleshoot with most parts fitted to
the chain saw. Troubleshooting requires:
• Ammeter
• Ohmmeter
• Coolant spray
Oxidation of the connectors in the heating elements
in the rear handle and the power switch’s contact
plate is the most common fault.
Troubleshoot as follows:
1. Loosen the screw holding the earth cable. See
Figure 1.
Fig 1
Fig 3
3. Unscrew the two screws on the front handle
and remove the cover. See Figure 3.
2. Measure the resistance in the whole circuit by
connecting the multimeter to the earth cable
and a properly cleaned cylinder. See Figure 2.
A correct reading with the power switch set to
“OFF” = ∞ Ohm
A correct reading with the power switch set to
“ON” = 4 to 5 Ohm
Fig 2