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

Visual inspection

Vehicle park and service brakes

REASON FOR QUESTION

OK.

Is air present at

Air hoses free from kinks.

TRAILER AIR SUPPLY

If air is not present, air hose

Emergency gladhand OK.

valve supply port?

104 is faulty. If air is present,

Air hose 155, 157, or 167

TRAILER AIR SUPPLY valve

OK.

is faulty.

Air hose 149, 150, or 151

OK.

Air hose 102 OK.

Air hose 108 OK.

Service gladhand 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.

Booster valve OK.

Service gladhand two-way

check valve OK.

Replace air hose

Air hose 145 OK.

YES

104 (para 11-21).

Air hose 120 OK.

Inversion valve control port

90-degree fitting OK.

Air hose 128, 130, or 132

OK.

POSSIBLE PROBLEMS

Faulty TRAILER AIR SUPPLY

valve.

Faulty air hose 104.

Replace TRAILER

AIR SUPPLY valve

(para 11-20).

2-1976.12

Change 1