TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
STARTING
Symptom-6
.
.
BOTH
ELECTRICAL
FUEL PUMPS WILL
NOT WORK.
Check
master
control
panel starting
harness
(CKT
76) for continuity.
Technician (Operators
Station)
l Set MASTER
BATTERY
switch
OFF.
l Displace
master
control
panel
(page
10-33).
l Disconnect
basket-control
panel
starting
harness
from
master
control
panel.
l Disconnect
basket-control
panel
power
harness
from
master
control
panel.
l Set multi meter to OHMS
X 1 scale and zero
meter,
or use STE/ICE
Test
No. 91 (page 4-83).
l Connect
red probe
of meter
to master
control
panel
starting
harness
panel
connector
contact
C (CKT
76).
l Connect
black
probe
of meter
to master
control
panel
power
harness
panel
connector
contact
B (CKT
10).
l Set FUEL
PUMPS
switch
ON.
l Check if meter indicates
continuity.
Does meter
indicate
continuity?
1Ris==1
l See Step
@
.
TA106872
4-183