NO AIR PRESSURE PRESENT AT M1088 REAR AND/OR FIFTH WHEEL SERVICE GLADHAND(S)

TM 9-2320-366-20-2

j4C. NO AIR PRESSURE PRESENT AT M1088 REAR AND/OR FIFTH WHEEL

SERVICE GLADHAND(S)

INITIAL SETUP

Equipment Conditions

Tools and Special Tools

Engine shut down (TM 9-2320-366-10-1).

Tool Kit, Genl Mech (Item 46, Appendix C)

Goggles, Industrial (Item 15, Appendix C)

START

KNOWN INFO

TEST OPTIONS

Visual inspection

Vehicle park and service brakes

REASON FOR QUESTION

Is air present at either

OK.

service gladhand?

Air hoses free from kinks.

This question eliminates

Air present at rear and fifth

possible problems and

wheel emergency gladhands.

determines where

troubleshooting continues.

POSSIBLE PROBLEMS

Faulty rear or fifth wheel

service gladhand.

Faulty air hose 257 or 263.

Faulty service gladhand

selector valve.

Faulty air hose 258.

Faulty air hose 135.

Faulty air brake protecting

valve.

Faulty air hose 256.

Faulty booster valve.

Faulty service gladhand

YES

two-way check valve.

Faulty air hose 145.

Go to step 4

of this fault.

Change 1