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

17.

Visual inspection

Vehicle park and service brakes

REASON FOR QUESTION

Is air present at booster

OK.

valve supply port?

Air hoses free from kinks.

If air is present, booster valve

Emergency gladhand OK.

is faulty.

Air hose 155, 157, or 167

OK.

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.

Air brake protecting valve OK.

Air hose 230 or 256 OK.

Load sensing valve control port

tee fitting OK.

Air hose 240 or 243 OK.

Go to step 18

YES

Air hose 120 OK.

of this fault.

Inversion valve control port

90-degree fitting OK.

Air hose 128, 130, or 132

OK.

POSSIBLE PROBLEMS

Faulty booster valve.

Faulty service gladhand

two-way check valve.

Faulty air hose 145.

Replace booster

valve (para 11-15).

2-1976.28

Change 1