TM-9-2320-361-24-1

2-1/2 TON, 6X6, M44A2 SERIES TRUCKS

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2

AUGUST 2006

TM-9-2320-361-24-1 - Page 188 of 1176

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ALL VEHICLE

ELECTRICAL SYSTEMS

INOPERATIVE (Contd)

Test 2. Disconnect battery ground

cable (WP 0126 00) and test

battery cables as follows:

1. Set multimeter to RX 1 scale.

2. Check for continuity of

battery cables no. 6 and 68

and for worn or frayed

insulation.

3. Check continuity of battery

cable no. 7 to frame ground.

4. Connect battery ground cable

(WP 0126 00) and proceed to

test 3.

Test 3. Check for battery voltage at

starter solenoid.

1. Set multimeter to a voltage

range that will measure

24 VDC.

2. Check lead no. 6 at contact 2

of starter solenoid for battery

voltage.

1. If resistance is greater than 1 ohm,

repair or replace battery cables

(WP 0126 00 and WP 0090 00).

2. If insulation is worn or frayed,

repair or replace battery cables

(WP 0126 00 and WP 0090 00).

1. If resistance measure greater than

1 ohm, clean cable no. 7 connection

at right-hand frame rail.

2. If continuity is still greater than

1 ohm, repair or replace battery

cable (WP 0126 00 and

WP 0090 00).

If battery voltage is not present, clean

connections of lead no. 6 at contact

no. 2 of starter solenoid (WP 0088 00).

TM 9-2320-361-24-1

0012 00

0012 00-4

BATTERY AND CHARGING SYSTEM TROUBLESHOOTING (Contd)

Table 1. Battery System Troubleshooting Procedure (Contd).