Tank Venting; Fuel Fi Lter - Husqvarna 326 E Workshop Manual

Fuel system
ank venting
Check that the tank venting valve works
correctly.
Replace the fuel cap if the valve is faulty.
531 03 06-23
Model 327 LS, 327 P5

Fuel fi lter

The fuel fi lter can be removed through the
tank's fi ll hole.
502 50 83-01

Tank venting

Tank venting takes place through the fuel
cap and needs to be functional for the
engine to work.
• Remove the fuel hose from the carbu-
rettor and empty the fuel from the tank.
• Connect the fuel hose to pressure
tester no. 531 03 06-23.
• Pump up a pressure and vacuum of 50
kPa (0.5 bar) in the tank.
• The pressure should drop to 20 kPa
(0.2 bar) or revert to atmospheric pres-
sure within 45 seconds.
The fuel cap can be taken apart for
Model 326 cleaning.
Use a screwdriver and prise off the hou-
sing (A) that contains a rubber diaphragm
(B) and a fi lter (C).
Knock the housing against a tabletop so
that the cover (D) over the diaphragm falls
off .
Blow the fi lter (C) clean, and the sintered
fi lter (E), with compressed air and mount
the fuel cap in the reverse order to how it
was disassembled.
Make sure that the fl at surface on the co-
ver (D) is turned towards the diaphragm.
Check that the tank venting is in working
order by connecting the 531 03 06-23 test
equipment to the nipple (A). Air must be
able to fl ow in both directions.
If this is not the case, the fi lter (B) may be
blocked.
The nipple becomes accessible after
the housing (C) is fi rst prised off using a
screwdriver.
Blow the fi lter (D) clean in the tank cap
using compressed air.
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 tool 502 50 83-01.
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