TM 5-5420-202-20-1
DETAILED TROUBLESHOOTING PROCEDURE
VEHICLE OPERATION HULL POWER
(Continued)
Symptom-31.1
32
Check CKT 532 at voltage regulator for 24 to 29
volts dc.
First Technician (Commander's Station)
Connect red probe of meter to "T" harness
socket F and black probe to socket C.
Check if meter indicates 24 to 29 volt dc.
Does meter indicate 24 to 29 volts dc?
33
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.
NO
Replace voltage regulator (page
10-1).
YES
34
Stop Engine.
Set FUEL PUMPS switch OFF.
Set MASTER BATTERY switch OFF.
Replace alternator (page 10-1).
Disconnect "T" harness from harness 12326542
connector (1, 1A, 532, 533, 534).
Connect harness 12326542 connector (1, 1A, 532,
533, 534) to voltage regulator.
Replace commander's floor plate (page 17-9).
4-414.18
Change 6
