Fuel Fi Lter - Husqvarna 545RX Workshop Manual

Fuel system
Check that the tank venting valve works
correctly.
Replace the fuel cap if the valve is faulty.
531 03 06-23
Fuel fi lter
The fuel fi lter can be removed through the
tank's fi ll hole.
502 50 83-01
Clean the outside of the fi lter if it is not too
dirty.
Replace the fi lter if required.
Tank venting takes place through the fuel
cap and needs to be functional for the
engine to work.
• Remove the cover over the fuel pump
and the fuel hose from the carburettor.
Drain the fuel from the tank.
• Connect the fuel hose to pressure tester
no. 531 03 06-23.
• Pump up a pressure in the tank. It must
not exceed 65 kPa (0.65 bar) before the
tank venting valve opens.
• Lower the pressure in the fuel tank. It
must not drop below –5 kPa (0.05 bar)
before the tank venting valve opens.
The fuel cap can be taken apart for clean-
ing.
Use a screwdriver and prise off the hous-
ing (A).
Remove the nipple (B) using a small fl at
nosed pliers.
Blow the bleeding opening in the house
(A) clean with compressed air.
Blow clean both sintered fi lters (C) with
compressed air.
Assemble the fuel cap in reverse order as
set out for dismantling.
Make sure the gasket (D) is not damaged.
Fuel fi lter
The fuel hose in the tank contains a fuel
fi lter. It is accessible through the fi ll hole.
Pull out the fi lter with your fi ngers or with
help of the 502 50 83-01 tool.
NOTE!
The fuel fi lter can get stuck under
the shaft bushing in the tank. Loosen
the fi lter using a long screwdriver.
Do not pull on the hose, since it can
easily be pulled from the fi lter.
If the fi lter is not too dirty, its surface can
be cleaned with a brush.
Otherwise it must be replaced.
Check the fuel hose for cracks and leaks.
Make sure that the fi lter's connection neck
is inserted as far as possible into the fuel
hose and that the spring clamp is suf-
fi ciently tight so that the fi lter cannot slide
off the hose.
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