TM-9-2320-365-20-2 LMTV Unit Maintenance Manual M1078 Series - Volume 2 Download
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KNOWN INFO TEST OPTIONS 7. Is air dryer purge valve free from constant air leaks and excessive moisture? YES NO REASON FOR QUESTION Service air dryer (para 23-6). FRONT BRAKE/REAR BRAKE AIR pressure gages OK. Air hoses and fittings from air cleaner to air compressor OK. Air hoses and fittings from air compressor to air dryer OK. Air hose and fittings from air dryer to wet tank OK. Air hoses and fittings from wet tank to air compressor OK. Air hoses, check valves, and fittings from wet tank to primary and secondary air tanks OK. POSSIBLE PROBLEMS Faulty air dryer purge valve and/or clogged desiccant cartridge. Faulty air compressor governor. Faulty air compressor. A leaking air dryer purge valve or a clogged air dryer desiccant cartridge may cause air system to lose pressure or take an excessive amount of time to build up air pressure. TM 9-2320-365-20-2 2-1726 Change 1 Soapy Water Leak Test and Visual Inspection j1. AIR SYSTEM LOSES PRESSURE DURING OPERATION/SLOW, NO, OR INCORRECT AIR PRESSURE BUILDUP (CONT)