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) NO Replace service gladhand selector valve (para 11-33). 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 hose 258 OK. Air hose 135 OK. Air brake protecting valve OK. Air hose 256 OK. Booster valve OK. Service gladhand two-way check valve OK. Air hose 145 OK. POSSIBLE PROBLEMS Faulty air hose 257 or 263. Faulty service gladhand selector valve. 3. Is air present at service gladhand selector valve output to affected service gladhand? TEST OPTIONS Visual inspection REASON FOR QUESTION If air is not present, service gladhand selector valve is faulty. If air is present, air hose 257 or 263 is faulty. Replace air hose 257 or 263 (para 11-21). 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. POSSIBLE PROBLEMS 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 two-way check valve. Faulty air hose 145. 4. Is air present at service gladhand selector valve supply port? TEST OPTIONS Visual inspection REASON FOR QUESTION If air is present, service gladhand selector valve is faulty. Replace service gladhand selector valve (para 11-33). YES Go to step 5 of this fault. NO 2-1976.52 Change 1