TM-9-2320-361-20

2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; UNIT MAINTENANCE

OCTOBER 1991

TM-9-2320-361-20 - Page 213 of 1207

TM 9-2320-361-20

Table 2-4. Electrical Troubleshooting (Contd).

MALFUNCTION

TEST OR lNSPECTlON

CORRECTIVE ACTION

33. GENERATOR GAGE INOPERATIVE

NOTE

If STE/ICE is available, perform NG31 - gage test (chapter 2,

section VII).

Test 1. Test generator gage.

Step 1. Turn accessory/ignition switch to ON position. Do not start engine.

Step 2. Generator indicator should rest between lower edge of GREEN area and upper edge of

YELLOW area on gage (24 volts).

Step 3. Start engine (TM 9-2320-361-10) and observe generator gage on instrument cluster.

Step 4. Generator gage should rise as engine speeds up and stop over white dot in green area

(approximately 28.0 Vdc).

If generator gage does not perform as specified in steps 2 and 4 above, stop engine and go

to test 2.

Test 2. Test battery voltage to generator, go to malfunction 29, test 2.

Check frame ground to multimeter.

a.

b.

c.

d.

e.

Set multimeter to RX1 scale.

Connect negative lead to panel ground on instrument cluster.

Touch positive lead to generator gage bracket. Continuity should be present. Ensure

instrument panel is grounded.

If continuity is present, reinstall instrument cluster (para. 4-12) and recheck gage

operation.

If continuity is not present, remove generator (para. 4-3 or 14-50) and check for

corrosion around generator body.

2-128

END OF TESTING!