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 349 of 1348

8.

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

0190).

9.

Push in trailer charge valve in vehicle. Refer to vehicle Operator's manual (WP

0190).

QUICK RELEASE

VALVE

Figure 2.

Quick Release Valve.

10.

While assistant fully applies brake pedal, listen for air to exhaust from quick release valve. Refer to vehicle

Operator's manual (WP

0190).

CONDITION/INDICATION

Does quick release valve exhaust air when brake pedal is released?

DECISION

No Air - Go to (Step 7 - Does test equipment pass offset test?).

Air Exhausts - Replace quick release valve (WP

0075). Go to (Step 10 - Is braking distance correct in response to

vehicle?) to verify problem is solved.

STEP 7

Does test equipment pass offset test?

WARNING

If air lines are disconnected when they are under 125± 5 psi (862± 34 kPa) pressure, they

can whip around. Care should be exercised when disconnecting an air hose that is thought

to be under pressure. Be sure to wear proper eye protection. Failure to comply may result in

injury or death to personnel.

NOTE

The relay valve test listed below applies to all brake relay valves.

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).

TM 9-2330-342-23&P

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