TM 5-3805-262-20
3-5. FUEL SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. LOW FUEL PRESSURE (Cont) .
Step 4.
Loosen fitting and discon-
nect filter hose from
f i t t i n g .
Disconnect opposite end of
f i l t e r h o s e f r o m f i l t er
head.
Check filter hose for ob-
s t r u c t i o n.
Compressed air used for cleaning
purposes will not exceed 30 psi.
U s e o n l y w i t h e f f e c t i v e c h i p
guarding and personal protective
e q u i p m e n t
( g o g g l e s / s h i e l d ,
g l o v e s , e t c ) . F a i l u r e t o d o s o
c o u l d c a u s e s e r i o u s i n j u r y t o
e y e s a n d p o s s i b l e b l i n d n e s s . If
y o u h u r t y o u r e y e s o r i f a
f o r e i g n o b j e c t i s b l o w n i n t o
y o u r
e y e s ,
s e e k m e d i c a l
attention immediately.
Step 5.
a . I f f i l t e r h o s e i s o b s t r u c t ed
, clear obstruction using compressed
a i r .
b . I f f i l t e r h o s e i s n o t o b s t r u c t e d,
disconnect pressure gage from
elbow, reinstall plug, and replace filter head (page 4-41) .
Disconnect fuel supply hose
at fuel injection pump feed
pump .
Hold end of fuel supply hose
v e r t i c a l l y .
T e l l a s s i s t a n t t o t u r n i g n i -
tion key switch to on posi-
t i o n .
Check that fuel is pumped
through fuel supply hose.
T e l l a s s i s t a n t t o t u r n i g n i -
tion key switch to off posi -
t i o n .
3-45
