TM-5-5420-202-20-1

M60A1 CHASSIS, TRANSPORTING; FOR BRIDGE, ARMORED-VEHICLE-LAUNCHED; SCISSORING TYPE, CLASS 60

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE MANUAL; VOLUME 1 OF 4

OCTOBER 1985

TM-5-5420-202-20-1 - Page 625 of 1020

4-414.4

Change 6

TM 5-5420-202-20-1

DETAILED TROUBLESHOOTING PROCEDURE

VEHICLE OPERATION – HULL POWER

(Continued)

Symptom-31.1

To ensure overvoltage protection circuit

breaker on voltage regulator is in the ON

(UP) position, turn the overvoltage circuit

breaker to the OFF (DOWN) position,

then to the ON (UP) position.

NOTE

NO

YES

•

Clean and tighten loose

voltage regulator lead

connections.

•

If connections are not loose,

replace harness 12326542

(page 10-1).

First Technician (Commander’s Station)

•

Set multimeter to lowest range.

•

Set circuit breaker on voltage regulator to ON.

•

Connect “T” harness to voltage regulator.

•

Connect red probe of meter to "T" harness

socket C and black probe to ground.

•

Check if meter indicates continuity.

Check continuity from socket C of the test

harness to vehicle chassis (GROUND).

Does meter indicate continuity?

2

3