ELECTRICAL TROUBLESHOOTING - continued - TM-9-2320-386-24-1-10096

TM 9-2320-386-24-1-1

0012 00

Electrical Troubleshooting (Contd)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

END OF TESTING!

12. BATTERIES HOT OR BOILING, CORRECTED SPECIFIC GRAVITY OF ALL CELLS IS 1.280

NOTE

If STE/ICE is available, perform NG50 Charging Circuit Tests

Test charging voltage (malfunction 10, test 2).

END OF TESTING!

13. BATTERIES USE EXCESSIVE WATER

NOTE

If STE/ICE is available, perform NG50 Charging Circuit Tests

Test charging voltage (malfunction 10, test 2).

END OF TESTING!

14. BATTERIES RUN DOWN IN OPERATION

NOTE

If STE/ICE is available, perform NG50 Charging Circuit Tests

Test 1. Check for loose alternator mounting or missing drivebelt.

a. Tighten loose mounting hardware.

b. Replace missing drivebelt (WP 0084 00).

Test 2. Test charging voltage (malfunction 10, test 2).

END OF TESTING!

INDICATORS, GAUGES, AND WARNING SYSTEM

15. ALL GAUGES INOPERATIVE

NOTE

If STE/ICE-R is available, perform NG31 Gauge Test

Test 1. Test starter for proper operation.

Step 1. Turn accessory/battery switch to ON position.

Step 2. Engage starter button.

a. If starter cranks engine, go to test 2.

b. If starter does not crank engine, go to malfunction 2 and troubleshoot starter

circuit.

Test 2. If problem is still present, test instrument cluster voltage.

Step 1. Turn accessory/battery switch to OFF position.

Step 2. Remove instrument cluster panel (WP 0094 00).

Step 3. Connect battery ground cable (WP 0121 00).

Step 4. Connect jumper wire from instrument panel to a good frame ground.