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 379 of 1348
STEP 3
Do brake chamber rods retract when brake pedal is released?
NOTE
This test covers left rear brake chamber, but it can be used to test operation of all trailer brake
chambers.
1.
Pull out trailer charge valve in vehicle. Refer to vehicle Operator's manual (WP
0190).
2.
Have assistant turn engine start switch to OFF. Refer to vehicle Operator's manual (WP
0190).
3.
Cage brake chamber. Refer to TM 9-2330-342-10 (WP
0190).
CLEVIS
PIN
CLEVIS
SLACK
ADJUSTER
BRAKE
CHAMBER
ROD
BRAKE
CHAMBER
COTTER
PIN
Figure 2.
Slack Adjuster.
4.
Remove two cotter pins, pins, and rod clevis from slack adjuster. Discard cotter pins.
5.
Rotate slack adjuster away from rod clevis.
6.
Uncage brake chamber. Refer to TM 9-2330-342-10 (WP
0190).
7.
Have assistant turn engine start switch to ON. Refer to vehicle Operator's manual (WP
0190).
8.
Push in trailer charge valve in vehicle. Refer to vehicle Operator's manual (WP
0190).
9.
While assistant fully applies brake pedal, observe operation of brake chamber rod. Refer to vehicle Operator's
manual (WP
0190).
CONDITION/INDICATION
Do brake chamber rods retract when brake pedal is released?
DECISION
Rod Free - Go to (Step 4 - Is slack adjuster(s) adjusted and free of damage?).
Rod Binds - Replace brake chamber (WP
0071). Go to (Step 7 - Does service brake(s) release correctly?) to verify
problem is solved.
STEP 4
Is slack adjuster(s) adjusted and free of damage?
1.
Release brake pedal. Refer to vehicle Operator's manual (WP
0190).
2.
Pull out trailer charge valve in vehicle. Refer to vehicle Operator's manual (WP
0190).
3.
Have assistant turn engine start switch to OFF. Refer to vehicle Operator's manual (WP
0190).
4.
Cage brake chamber. Refer to TM 9-2330-342-10 (WP
0190).
TM 9-2330-342-23&P
0039
0039-3
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