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 384 of 1348

Figure 1.

Trailer Air System.

4.

While assistant fully applies brake pedal, listen to air lines, fittings, load sensor valve, and quick release valve

for leaks. Refer to vehicle Operator's manual (WP

0190).

CONDITION/INDICATION

Are air lines 2255, 2260, 2637, 2638, 2639, 2660, fittings, load sensing valve, and quick release valve free of

leaks and crimps?

DECISION

Fittings leak and are loose - Tighten fittings. Go to (Step 7 - Do service brakes apply correctly?) to verify problem is

solved.

Hose(s) leak -

Replace faulty hose(s) (WP

0067). Go to (Step 7 - Do service brakes apply correctly?) to verify

problem is solved.

Load sensor valve leaks -

Replace load sensing valve (WP

0080). Go to (Step 7 - Do service brakes apply

correctly?) to verify problem is solved.

Quick release valve leaks -

Replace quick release valve (WP

0075). Go to (Step 7 - Do service brakes apply

correctly?) to verify problem is solved.

All items listed are free of leaks - Go to (Step 2 - Does test equipment pass offset test?).

STEP 2

Does test equipment pass offset test?

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.

Drain trailer air system. Refer to TM 9-2330-342-10 (WP

0190).

4.

Disconnect air hose 2660 from quick release valve.

5.

Connect TK pressure transducer (blue stripe) to air hose 2660.

TM 9-2330-342-23&P

0040

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