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 258 of 1184

TM 9-2330-334-13&P

TRAILER BRAKES UNEVENLY OR BRAKES

PULL TO ONE SIDE OR GRAB -Continued

0044 00

BRAKES TROUBLESHOOTING - Continued

Table 1.

Trailer Brakes Unevenly Or Brakes Pull To One Side Or Grab - Continued.

Change 1

0044 00-6

INDICATION/CONDITION

DECISION (NO/YES)

PROCEDURAL STEPS

5.

Is air present at four port

task valve delivery port to

affected wheel(s)/brake(s)

when brakes are applied?

No

Replace four port task valve

(WP 0109 00).

1.

Remove trestles from axle

assembly.

Yes

Go to (Indication/Condition

6).

2.

Lower jack to place trailer on

ground.

3.

Loosen air delivery hoses to

spring brakes at delivery

ports of four port task valve.

4.

Start towing vehicle engine.

5.

Allow brake air pressure to

fully charge.

6.

Depress brake pedal and

have assistant check for

presence of air escaping at

delivery port of four port

task valve and air hoses.

7.

Shut down towing vehicle

engine.