Document Ref 903647-001 Rev 3
Page 3-3
Component Technical Manual
PAS V3 Pump for Fuel Dispensers
3.2
Flow Charts
3.2.1
NO FUEL FLOW
C hec k powe r
su pply and
co ndition of be lt
drive
YES
N O
W orn out p um p
B ypa ss block ed
ope n or outlet
va lv e blocke d
N O
YES
Externa l pro ble m
ups tre am (re fer
to s ection 4.5)
N O
YES
YES
Find air entry
(refer to se ction 4 .7 )
Is the p um p u nit
air tight? (re fe r to
se ction 4 .4 )
N O
YES
YES
Site co nfigura tion
he adloss is ex ces sive
(refer to se ction 4 .6 )
N O
YES
N O
Fill unde rgrou nd
stora ge ta nk
N O
NO FUEL FLOW
Is the p um p
run nin g? (direc tion
of r ota tion)
Is the p um p
unu sually
noisy ?
H ig h inlet
he adloss > 400
m bar (refer to
se ction 4 .2 )
Is the a ir
se para tor
wo rking? (r efe r
to s ection 4.3)
Is the re fu el in
the unde rgroun d
stora ge ta nk?
Is the fuel
su pply line air
tigh t?
Ou tlet pr ess ure
>1.5 bar ? (refer
to s ection 4.1)
Issue B
