TM 5-5420-202-20-1
DETAILED TROUBLESHOOTING PROCEDURE
VEHICLE OPERATION HULL POWER
(Continued)
Symptom-31.1
28
Check CKT 1A at voltage regulator for 25 to 30
volts dc.
Second Technician (Operator's Station)
Start Engine.
Set Idle speed to 750 RPM.
Turn OFF all lights, ventilator blowers and
radio equipment.
Connect red probe of meter to "T" harness
socket A and black probe socket C.
Check if meter indicates 25 to 30 volt dc.
Does meter indicate 25 to 30 volts dc?
29
Stop Engine.
Set FUEL PUMPS switch OFF.
Set MASTER BATTERY switch
OFF.
Disconnect "T" harness from
harness 12326542 connector (1,
1A, 532, 533, 534).
Disconnect "T" harness from
voltage regulator.
Replace voltage regulator (page
NO
10-1).
YES
4-414.16
Change 6