TM 5-3805-262-20
3-31. FUEL SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. LOW FUEL PRESSURE (Cont).
S t e p 7 . ( C o n t ).
b. If pressure gage does not indicate 20 to 30 psi, notify next
higher maintenance level to replace fuel injection pump feed
pump.
Step 8.
Disconnect opposite end of fuel supply hose at fuel tank and remove
fuel supply hose.
Remove elbow from electric fuel pump.
Install street elbow (TK item 27) in electric fuel pump port from
which elbow was removed.
Install adapter (TK item 20) in street elbow (TK item 27).
Install pressure transducer (red stripe, TK item 22) in adapter (TK
item 20).
Connect transducer cable W4 connector P1 to VTM J2.
Connect transducer cable W4 connector P2 to transducer connector.
Dial 49 into TEST SELECT.
Press and hold TEST until CAL appears on display then release TEST.
Wait for offset value to appear
on display. Offset value should
be between -4 to +4. If it is
not, STE/
ICE is defective (refer to TM
9-4910-571-12&P).
Press and release TEST.
Turn ignition key switch to on
p o s i t i o n .
VTM display should indicate 3.2
t o 9 p s i.
Turn ignition key switch to off
p o s i t i o n.
C o m p r e s s e d a i r u s e d f o r c l e a n i ng
purposes will not exceed 30 psi. Use
o n l y w i t h e f f e c t i v e c h i p g u a r d i ng
a n d p e r s o n a l p r o t e c t i v e e q u i p m e nt
( g o g g l e s / s h i e l d , g l o v e s , e t c ) .
Failure to do so could cause serious
i n j u r y t o e y e s a n d p o s s i b l e
blindness. If you hurt your eyes or
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 to
y o u r e y e s , s e e k m e d i c a l a t t e n t i on
immediately.
3-252
