Husqvarna 570 Workshop Manual page 34

Cleaning and inspection
!
WARNING!
Fuel has the following hazardous proper-
ties:
1. The fluid and its fumes are poisonous.
2. Can cause skin irritation.
3. Is highly inflammable.
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 make sure that they are not blocked.
See fig. 10, 11 and 12 and check the following:
1. That gaskets, pump and control diaphragms are
undamaged.
2. That there is no play on the throttle and choke valve
shafts.
3. The needle valves and lever are not worn at C and D in
fig. 10.
4. The fuel filter is undamaged. See L in fig. 11.
Fig. 13
34 – English
CARBURETTOR
5. The tips of the high and low speed screws are not
damaged.
6. The intake manifold is undamaged. See page 44.
7. The carburettor has an extra air shutter connected in
parallel with the ordinary throttle valve. The valve housing
with axle is secured in the carburettor using two screws.
The gasket between the carburettor and the valve
housing is, if the saw has the designation XPG, replaced
by a carburettor heater.
Fig. 12