NO AIR PRESSURE PRESENT AT REAR GLADHAND(S) (ALL MODELS EXCEPT M1088) (cont)

TM 9-2320-366-20-2

j4. NO AIR PRESSURE PRESENT AT REAR GLADHAND(S)

(ALL MODELS EXCEPT M1088) (CONT)

KNOWN INFO

TEST OPTIONS

12.

Visual inspection

Vehicle park and service brakes

REASON FOR QUESTION

OK.

Is air present at

Air hoses free from kinks.

air brake protecting valve

This question eliminates

Emergency gladhand OK.

supply port FV1?

possible problems and

Air hose 155, 157, or 167

determines where

OK.

troubleshooting continues.

Service gladhand OK.

Air hose 149, 150, or 151

OK.

Air hose 102 OK.

Air hose 108 OK.

TRAILER AIR SUPPLY valve

OK.

Air hose 104 OK.

Air hose 241, 253, or 254

OK.

POSSIBLE PROBLEMS

Faulty air brake protecting

valve.

Go to step 14 of this

Faulty air hose 230 or 256.

fault (all models except

YES

Faulty load sensing valve

M1089) or step 16 of

control port tee fitting.

this fault (M1089).

Faulty air hose 240 or 243.

Faulty booster valve.

Faulty service gladhand

two-way check valve.

Faulty air hose 145.

Faulty air hose 120.

Faulty inversion valve control

port 90-degree fitting.

Faulty air hose 128, 130, or

132.

2-1976.18

Change 1