TM-9-2320-334-13&P LHST Operator, Field and Parts Manual M1147A1 Trailer Download
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TM 9-2330-334-13&P  PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)  INCLUDING LUBRICATION INSTRUCTIONS - Continued 0052 00  0052 00-46 Change 1  Semiannual PMCS Procedures for Trailer (Field Level) - Continued  Table 11. Preventive Maintenance Checks and Services (PMCS) - Semiannual (Field Level).  ITEM  NO.  INTERVAL MAN-  HOUR  ITEM TO  BE  CHECKED  OR  SERVICED  FIELD-LEVEL MAINTENANCE  PROCEDURE  EQUIPMENT  NOT READY/  AVAILABLE  IF:  1 Semiannual Relay Valves 1. Inspect relay valves (1) and  hoses (2) for chafing, bends, kinks,  or damaged fittings (3). Notify Field  Maintenance if fittings are damaged.  Hoses (2) are  bent, kinked,  or damaged.  Fittings (3) are  damaged.