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 j4A. NO AIR PRESSURE PRESENT AT ALL M1088 REAR AND FIFTH WHEEL GLADHANDS (CONT) 2-1976.40 Change 1 KNOWN INFO Vehicle park and service brakes OK. Air hoses free from kinks. Air brake protecting valve OK. Air hose 134 OK. Air hose 102 OK. POSSIBLE PROBLEMS Faulty air hose 108. Faulty air hose 104. Faulty TRAILER AIR SUPPLY valve. TEST OPTIONS Visual inspection REASON FOR QUESTION If air is not present, air hose 108 is faulty. TEST OPTIONS Visual inspection REASON FOR QUESTION If air is not present, air hose 104 is faulty. If air is present, TRAILER AIR SUPPLY valve is faulty. KNOWN INFO Vehicle park and service brakes OK. Air hoses free from kinks. Air brake protecting valve OK. Air hose 134 OK. Air hose 102 OK. Air hose 108 OK. POSSIBLE PROBLEMS Faulty air hose 104. Faulty TRAILER AIR SUPPLY valve. Replace TRAILER AIR SUPPLY valve (para 11-20). NO 5. Is air present at TRAILER AIR SUPPLY valve supply port? YES Replace air hose 108 (para 11-21). NO Is air present at TRAILER AIR SUPPLY valve control port? 4. YES Replace air hose 104 (para 11-21).