Husqvarna T540 XP Workshop Manual page 43

Cleaning and checking
WARNING!
The fuel used for the chain saw has
the following hazardous properties:
1. The liquid and its fumes are
poisonous.
2. Can cause skin irritation.
3. Is very flammable.
Clean all units in clean petrol.
WARNING!
Never direct the compressed air jet
towards the body. Air can penetrate
into the blood circulation, which
means mortal danger.
Use compressed air to dry the petrol on the
components. Direct the air through all channels in
the carburettor housing and ensure that they are
not blocked. Check the following:
1. That the gasket, pump and control diaphragms
are undamaged, as well as the gasket between
the carburettor body and the autotuner.
2. That there is no play on the throttle valve and
choke valve shafts.
Fig 46
3. That the needle valve (U) and its lever arm (T)
are not worn. See Figure 44.
4. That the fuel screen (V) is intact and clean.
See Figure 45.
5. That the inlet manifold (Z) is undamaged. See
Figure 48.
6. Use the service tool, Engine Diagnostic Tool
576 69 23-01, to inspect the AutoTune unit.
See separate instruction for information about
error codes and procedures.
Repair instructions
43
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