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 232 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 00-6

INDICATION/CONDITION

DECISION (NO/YES)

PROCEDURAL STEPS

6.

Is air present at control port

of ABS relay valve?

No

Replace air hose 103.

1.

Loosen air hoses at ABS

relay valve control port.

Yes

Go to (Indication/Condition

7).

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 hoses to ABS

relay valve control port.