TM-9-2330-334-13-P

FAMILY OF MEDIUM TACTICAL VEHICLES (FMTV) LOAD HANDLING SYSTEM TRAILER (LHST) M1147A1

TECHNICAL MANUAL; OPERATOR AND FIELD LEVEL MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)

DECEMBER 2013

CHANGE 1

TM-9-2330-334-13-P - Page 236 of 1184

TM 9-2330-334-13&P

AIR SYSTEM LOSES PRESSURE DURING

OPERATION/SLOW AIR PRESSURE BUILDUP

0042 00

AIR SYSTEM TROUBLESHOOTING - Continued

Table 1.

Air System Loses Pressure During Operation/Slow Air Pressure Buildup - Continued.

Change 1

0042 00-10

INDICATION/CONDITION

DECISION (NO/YES)

PROCEDURAL STEPS

10.

Is air present at supply port

of ABS ECU valve?

No

Go to (Indication/Condition

11).

1.

Loosen air hose at ABS ECU

valve supply port.

Yes

Replace air tank (WP 0078

00).

2.

Start towing vehicle engine.

3.

Depress towing vehicle

brake pedal.

4.

Check for presence of air.

5.

Shut down towing vehicle

engine.

6.

Tighten air hose to ABS ECU

valve supply port.