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 176 of 1176

TM 9-2320-361-24-1

0010 00

0010 00-16

COMPRESSED AIR AND BRAKE SYSTEM TROUBLESHOOTING (Contd)

Table 3. Compressed Air Troubleshooting Procedures (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

4. LOW OR NO

READING ON

AIR PRESSURE

GAUGE, AND

WARNING BUZZER

SHUTS OFF

Test 1. Check air supply pressure to

air pressure gauge (1).

1. Stop engine and open all drain

valves (TM 9-2320-361-10)

until brake system is

completely drained of air.

2. Disconnect air supply line (2)

from air pressure gauge

adapter (3).

3. Connect air supply line (2) to

test gauge (4).

4. Start engine (TM 9-2320-361-

10) and allow air pressure to

build up to normal operating

pressure.

NOTE

Air pressure gauge on instrument

panel has a maximum pressure

reading of 120 psi. If old governor has

been replaced with new governor, air

pressure may exceed maximum

pressure reading on instrument panel

gauge.

5. Check test gauge (4) reading.

1. If reading is low or zero, check air

supply line (2) for bends, kinks, or

leaks. Repair or replace air supply

line if bent, kinked, or leaking

(TM 9-243).

2. If reading is above 85 psi (586 kPa)

on test gauge (4), replace air

pressure gauge (1) (WP 0094 00).

5. WARNING BUZZER

FAILS TO SOUND

ON LOW AIR

PRESSURE (BELOW

60 PSI)

1. Refer to WP 0014 00, table 1,

malfunction 8.