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

2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); UNIT, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL; VOLUME 1 OF 2

MAY 2001

TM-9-2320-386-24-1-1 - Page 120 of 1078

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

0017 00

0017 00-2

Table 2. STE/ICE-R NO-GO-Chain Tests

LOW OIL PRESSURE CHECK

NG05

TK

MODE

• Dial 50 into TEST SELECT.

• Press and hold TEST until CAL message

appears on display.

• Release TEST.

• Wait for offset value to appear on the display.

• Is the offset value within the limits -150 to +150?

PROMPTING

MESSAGE

TEST NO.

TEST

01

INTERLEAVE

50

0-1000 PSIG

PRESSURE

NO

YES

• Proceed to TM 9-4910-571-12&P

for offset fault isolation.

2

CHECK OIL PRESSURE

• Dial 01 into TEST SELECT and press TEST.

• When PASS appears, dial 50 into TEST SELECT

and press TEST. VTM will now display RPM and

oil pressure alternately.

• Start engine.

• Check the VTM display for correct oil pressure.

• Is the oil pressure above 15 PSI (103 kPa) ?

1

INSTALL TRANSDUCER - DO OFFSET:

• Stop vehicle engine.

• Remove oil pressure transducer (WP 0100 00).

• Install pressure transducer TK item 17 (blue

stripe) in place of oil pressure transducer on

engine.

• Connect P1 of the transducer cable W4 to J1 or J2

on the VTM.

• Connect P2 of the transducer cable to the connector

on the pressure transducer.

PROMPTING

MESSAGE

YES

NO

• Stop the engine immediately.

• Refer to PMCS (WP 0022 00) to

check oil type and replace oil

filters.

• If the reading is still bad, refer

to Mechanical Troubleshooting

(WP 0009 00).

• Proceed to Gauge Test, NG31.

NOTE

After completing repair, return the

GO-Chain test to verify that the

problem is fixed and that no other

problems exist.

NG31