TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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TEST OPTIONS Visual inspection REASON FOR QUESTION Is air present at air brake protecting valve supply port FV1? This question eliminates possible problems and determines where troubleshooting continues. KNOWN INFO YES NO TM 9-2320-366-20-2 2-1976.18 Change 1 j4. NO AIR PRESSURE PRESENT AT REAR GLADHAND(S) (ALL MODELS EXCEPT M1088) (CONT) Go to step 14 of this fault (all models except M1089) or step 16 of this fault (M1089). POSSIBLE PROBLEMS 12. Vehicle park and service brakes OK. Air hoses free from kinks. Emergency gladhand OK. 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. Faulty air brake protecting valve. Faulty air hose 230 or 256. Faulty load sensing valve control port tee fitting. 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.