TM 10-3930-653-14&P SECTION VIII. OPERATOR/CREW PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) GENERAL Your  Preventive  Maintenance  Checks  and  Services  Table  lists  the  inspections  and  care  of  your  equipment  required  to keep it in good operating condition. OPERATOR/CREW PREVENTIVE MAINTENANCE CHECKS AND SERVICES 1.  The number column of your PMCS is the source for the number used on the TM Number Column on DA Form 2404. 2.  The interval column of your PMCS Table tells you when to do a certain check or service. a. Before you operate.  Perform your before (B) PMCS.  Always keep in mind the WARNINGS and CAUTIONS. b. While you operate.  Perform your during (D) PMCS.  Always keep in mind the WARNINGS and CAUTIONS. c. Once a week.  Perform your weekly (W) PMCS.  Always keep in mind the WARNINGS and CAUTIONS. 3.    The  procedure  column  of  your  PMCS  Table  tells  you  how  to  do  the  required  checks  and  services.    Carefully  follow these instructions.  If you do not have the tools, or if the procedure tells you to, have organizational maintenance do the work. 4.    If  your  equipment  does  not  perform  as  required,  refer  to  the  troubleshooting  section  in  this  manual  for  possible problems.  Report any malfunctions or failures on the proper DA Form 2404 or refer to DA Pamphlet 738-750. NOTE The  terms  ready/available  and  mission  capable  refer  to  the  same  status:    Equipment  is  on  hand and is able to perform its combat missions (see DA Pamphlet 738-750). 5.  Equipment is not ready/available if:  column.  This column tells you when and why your equipment cannot be used. 6.  Always do your PMCS in the same order so it gets to be a habit.  Once you’ve had some practice, you will spot anything wrong in a hurry. 7.  When you do your PMCS, take along a rag or two. B-31