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 321 of 1176

TM 9-2320-361-24-1

0018 00

0018 00-17

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 FIELD CURRENT:

• Install current probe around wire No. 1 of

alternator to regulator cables.

• Point arrow on current probes toward alternator.

• Dial 90 into TEST SELECT switches.

• Press and hold TEST until CAL message appears.

• Release TEST.

9

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

• Set engine speed at a fast idle speed (1200 RPM).

• Turn headlights and accessories ON.

• Press TEST.

• Compare number on VTM display with values

given below.

NO

YES

PROMPTING

MESSAGE

NOTE

On systems with separate rectifiers,

current probe may be placed around

wire mounts on alternator to

rectifier cable or rectifier cable.

NOTE

After completing repair, rerun GO Chain

tests (WP 0017 00) to verify that problem

is fixed and no other problems exist.

• Refer to Electrical Troubleshooting Index

(WP 0011 00) to check continuity of cables

from regulator to alternator using STE/ICE-R.

If cables are OK, further check charging

system of STE/ICE-R.

• Replace alternator (WP 0085 00).

• Shut off engine.

• Is current within range?