group and so on. The equipment should be grouped so a unit that works together is scheduled for the same PM group;  for  example,  semitrailers  with  truck  tractors, scrapers with tractors, and so on. Activities should assign each piece of equipment to one PM group initially. After the system is established and operating, the   maintenance   supervisor   should   review   its effectiveness and REDUCE the intervals for high mileage/hour  items  of  equipment,  if  necessary.  The time interval is NEVER INCREASED beyond 40 working days. Preventive  Maintenance A  preventive  maintenance  inspection  schedule, such  as  the  one  shown  in  figure  l-l,  should  be established annually. A new schedule is required each year, as the schedules are based on the workdays in each calendar year. The workdays on the schedule must correspond to the actual workdays of the unit; for example, if you work a 5-day week, enter 5 days; omit holidays.  The  PM  groups  are  numbered  vertically  down the first column. Figure 1-1 shows the standard 40 PM group  concept  arranged  for  a  5-day  workweek.  The dates  of  the  workdays  of  January  are  then  listed consecutively in the January column. After the last workday in January is entered, continue with workdays in the February column and so forth. After completion, the schedule indicates the workdays that each PM group is due for inspection. For example, figure 1-1 shows PM group 5 is due on January 8, March 6, May 1, June 27, August 23, October 23, and December 19. OPERATOR'S  INSPECTION  GUIDE  AND  TROUBLE  REPORT REGISTRATION    NO. ODOMETER  READING 94-75111 7581 Use   this   form   as   a   guide   when   performing   before   and   after   operation inspection.    Check items    that    require    servicing    by    maintenance personnel. 1. DAMAGE  (Exterior,  Interior,  Missing  Components) 2 .   L  E  A  K  S      (  O  i  l  ,      G  a  s  ,      W  a  t  e  r  ) 3. T I R E S    ( C h e c k    I n f l a t i o n ,    a b n o r m a l    w e a r ) 4. FUEL,    OIL,    WATER    SUPPLY    (Antifreeze    in    season) 5. B A T T E R Y    ( C h e c k    w a t e r    l e v e l ,    c a b l e s ,    e t c . ) 6. HORN 7. LIGHTS/REFLECTORS/MIRRORS/TURN  SIGNALS 8. INSTRUMENTS    (Oil,    Air,    Temperature,    etc.) 9. WINDSHIELD   WIPER 10.    CLEAN    WINDSHIELD/VEHICLE    INTERIOR 11.    CARGO, MOUNTED EQUIPMENT 12.    S T E E R I N G 13.   SAFETY    DEVICES    (Seatbelts,    flares,    etc.) 14.   DRIVE    BELTS/PULLEYS 15.   B R A K E S    ( D r a i n    a i r    t a n k    w h e n    e q u i p p e d ) 16.  O T H E R    ( S p e c i f y    i n    " R e m a r k s " ) DATE OPERATOR'S    SIGNATURE 01   Jul   1997 REMARKS OIL LEAK BOTTOM OF OIL PAN NAVFAC     9-11240     13     (12-89) Supersedes   DD   Form   1358 *U.S.   Government   Printing   Office:   1983   683-006-1060 S/N 0105-LF-004-1195 CMB10002 MAINTENANCE  INSPECTIONS The object of a maintenance inspection is to detect minor deficiencies before they develop into costly major repairs. This is done daily by the operator and regularly scheduled preventive maintenance. Operator The first sign of vehicle trouble is usually detected by the operator during one of the three daily inspections: before, during, and after operation. The BEFORE OPERATION (prestart) inspection consists of an operator inspecting the items listed on the Operator’s  Inspection  Guide  and  Trouble  Report, NAVFAC  9-11240/13  (fig.  1-2).  If  a  defect  is discovered,  the  equipment  SHOULD  NOT  BE OPERATED. The defect must be reported to the dispatcher who, in turn, will report it to the maintenance section. Figure 1-2.—Operator’s Inspection Guide and Trouble Report,  NAVFAC  9-11240/13. The DURING OPERATION inspection consists of an operator using the sense of smell, sight, and touch to detect improper operation. When a defect is discovered during operation, the equipment should be secured and the  problem  reported  to  either  the  supervisor  or  the dispatcher. The  AFTER  OPERATION  (post  operation) inspection  consists  of  an  operator  looking  over  the equipment   while   performing   established   shutdown procedures and reporting defects to the dispatcher. Preventive Maintenance Preventive   maintenance   inspections   consist primarily  of  safety  and  serviceability  inspections  and are   performed   by   using   the Automotive   and Construction Preventive Maintenance Guides listed in the     COMSECONDNCB/COMTHIRDNCBINST 1-5