31BT 45
– If no equalization of pressures
takes place in the tank vent test,
b 8.5.1, the tank vent (1) must
be replaced.
– It is necessary to remove the
right-hand handle housing,
b 5.1, for access to the tank
vent.
: Pry the tank vent (1) with O-ring
out of the fuel tank.
– Examine O-ring for damage and
replace if necessary.
Install in the reverse sequence.
VA
932RA269
1
The diaphragm pump draws fuel out
of the tank and into the carburetor
via the fuel hose. Any impurities
mixed with the fuel are retained by
the pickup body (filter). The fine
pores of the filter eventually become
clogged with minute particles of dirt.
This restricts the passage of fuel
and results in fuel starvation.
Always observe all safety
precautions when working on the
fuel system - b 2.
In the event of trouble with the fuel
supply system, always check the
fuel tank and the pickup body first.
Clean the fuel tank if necessary
- b 8.6.
The fuel tank is an integral part of
the left-hand handle housing and
cannot be replaced separately. In
the event of any damage to the fuel
tank, the complete left-hand handle
housing has to be replaced.
Cleaning the fuel tank
– Unscrew the tank cap and drain
the tank.
– Pour a small amount of clean
gasoline into the tank.
– Close the tank and shake the
machine vigorously.
– Open the tank again and drain it.
Dispose of fuel properly.
– Unscrew the tank cap.
: Use special hook (1)
5910 893 8800 to pull the pickup
body out of the fuel tank.
VA
932RA289
1
: Pull the pickup body off the fuel
hose and check it for
contamination. Replace if
necessary.
Install in the reverse sequence.
VA
932RA290
8.5.2 Replacing 8.6 Fuel Tank 8.6.1 Pickup Body
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