TM 5-5420-226-20-1
.-
Symptom-1
1
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
RUNNING
.
,
T’
9
Check fuel lines from main fuel hose to right and
left fuel tanks.
Both Technicians
(Engine)
l Connect primary fuel filter hose to primary fuel
*
tiker body.
.
Connect
male half of quick disconnect
to primary
fuel filter hose.
l Drain both fuel tanks (page 7-191).
l Remove the following lines/valves and check for
blockage by using compressed
air:
.
Main fuel feed tube
.
Engine fuel feed primer tube
c
Engine feed tee
.
Inter-tank
swing check valve
Are any lines or valves blocked?
Install all lines, tubes and
check valve.
Install powerplant
(page 5-14).
Fill fuel tanks
(TM 5-5420-226-10).
Notify support
maintenance
of engine probiem.
I!!ilw.11
.?
MAiN FUEL
FEED TUBE
“.
PRIMER
TUBE
INTER - T~NK
SWING
CHECK
VALVE
O-LNO
YES
)
l If biockage cannot be
removed,
replace the
following
parts as necessary:
l Main fueilfeed tube
(page 7-316).
l Engine feed fuel primer
tube (page 7-316).
,
Engine feed tee
(page 7-316).
.
inter-tank
swing check
valve (page 7-250).
l Install ali lines, tubes and
check vaive.
l Instaii powerplant
(page 5-14).
l Fiii fuei tanks
(TM 5420-226-10).
TA106968
4-279
—
,
