TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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TM 9-2320-366-20-2 j4C. NO AIR PRESSURE PRESENT AT M1088 REAR AND/OR FIFTH WHEEL SERVICE GLADHAND(S) (CONT) 2-1976.54 Change 1 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 6. Vehicle park and service brakes OK. Air hoses free from kinks. Air present at rear and fifth wheel emergency gladhands. Rear and fifth wheel service gladhands OK. Air hoses 257 and 263 OK. Service gladhand selector valve OK. Air hose 258 OK. POSSIBLE PROBLEMS Faulty air hose 135. Faulty air brake protecting valve. Faulty air hose 256. Faulty booster valve. Faulty service gladhand two-way check valve. Faulty air hose 145. NO Go to step 8 of this fault. YES KNOWN INFO Vehicle park and service brakes OK. Air hoses free from kinks. Air present at rear and fifth wheel emergency gladhands. Rear and fifth wheel service gladhands OK. Air hoses 257 and 263 OK. Service gladhand selector valve OK. POSSIBLE PROBLEMS Faulty air hose 258. Faulty air hose 135. Faulty air brake protecting valve. Faulty air hose 256. Faulty booster valve. Faulty service gladhand two-way check valve. Faulty air hose 145. 5. Is air present at air brake protecting valve delivery port TRLR S? TEST OPTIONS Visual inspection REASON FOR QUESTION If air is present, air hose 258 is faulty. NO Go to step 6 of this fault. YES Replace air hose 258 (para 11-21).