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 319 of 1176

TM 9-2320-361-24-1

0018 00

0018 00-15

SIMPLIFIED TEST EQUIPMENT FOR INTERNAL COMBUSTION ENGINE—

REPROGRAMMABLE STE/ICE-R NO-GO CHAIN TROUBLESHOOTING (Contd)

Table 2. STE/ICE-R No-Go Chain Test (Contd).

CHARGING CIRCUIT TESTS (Contd)

NG50

TK

MODE

CHECK CHARGING SYSTEM OUTPUT VOLTAGE:

• Connect red clip of cable W2 to output

terminal of alternator.

• Connect black clip lead to ground.

7

DO TEST PROBE CABLE OFFSET:

• Dial 89 into TEST SELECT switches.

• Press and hold TEST until CAL message

appears on display.

• Release TEST.

• Wait for offset value to appear on display.

• Is offset value within limits of –6.8 to +6.8?

6

• STE/ICE-R is bad. Replace.

• Reconnect battery ground cable (WP 0126 00).

• Start vehicle engine (TM 9-2320-361-10).

• Turn on vehicle lights.

• Set engine speed to fast idle (1200 RPM).

• Press TEST

• Is output voltage between

26.5 and 29.5 volts?

• Proceed to next page.

NO

YES

YES

NO

PROMPTING

MESSAGE

TEST NO.

TEST

89

0–45 VOLTS DC

• Proceed to step 8.

8