TM-9-2330-342-23-P

PALLETIZED LOAD SYSTEM TRAILER (PLST) M1076 A1

TECHNICAL MANUAL; FIELD MANUAL

OCTOBER 2012

TM-9-2330-342-23-P - Page 361 of 1348

STEP 2

Do brake chamber rods move in chambers when brake pedal is applied?

WARNING

Be sure to wear the proper eye protection when working on or around pressurized air systems

if not injury or death could result.

NOTE

This test covers left rear brake chamber, but it can be used to test operation of all trailer brake

chambers.

1.

Cage brake chamber. Refer to TM 9-2330-342-10 (WP

0190).

2.

Remove two cotter pins, pins, and rod clevis from slack adjuster. Discard cotter pins.

CLEVIS

PIN

CLEVIS

SLACK

ADJUSTER

BRAKE

CHAMBER

ROD

BRAKE

CHAMBER

COTTER

PIN

Figure 2.

Slack Adjuster.

3.

Rotate slack adjuster away from rod clevis. Discard cotter pins.

4.

Uncage brake chamber. Refer to TM 9-2330-342-10 (WP

0190).

5.

Have assistant turn engine start switch to ON. Refer to vehicle Operator's manual (WP

0190).

6.

While assistant pushes in trailer charge valve in vehicle, observe operation of brake chamber rod. Refer to

vehicle Operator's manual (WP

0190).

7.

Have assistant turn engine start switch to OFF. Refer to vehicle Operator's manual (WP

0190).

CONDITION/INDICATION

Do brake chamber rods move in chambers when brake pedal is applied?

DECISION

ROD MOVES - Go to (Step 3 - Are slack adjusters adjusted and free of damage?).

ROD STICKS - Replace brake chamber (WP

0071). Go to (Step 5 - Does parking brake(s) release correctly?) to

verify problem is solved.

TM 9-2330-342-23&P

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