TM  55-1730-201-12 INTERVALS SERVICE Before Oper- ation X X During Oper- ation After Oper- ation X P R O C E D U R E  Hydraulic   fluid.   Inspect the   fluid   level;   add   fluid, if   necessary,   to   bring level   up   to   one   inchbe- low   the   filler   neck. Tampering.   Inspect   the maintenance   platform   for evidence  of  tampering  or damage.   Do   not   operate the   unit   until   all   defects are  corrected  or  reported to   organizational   main- tenance. 25.   ORGANIZATIONAL   PREVENTIVE   MAINTE- NANCE SERVICES. SERVICE INSPEC- TION X X Monthly X X Yearly PROCEDURE Before-operation    ser- vices. Inspect   and perform  the  operator’s daily   services   listed in  paragraph  24. Lubrication.  Inspect  the maintenance    platform for  damaged  or  missing lubrication  fittings.  In: spect  to  see  that  a copy  of  the  current INSPEC- TION X X X Monthly X X X Section  Ill.  TROUBLESHOOTING 26. GENERAL. This  section  provides  information  useful  in  diag- nosis  and  correction,  inspection,  operation,  or  fail- ure  of  the  maintenance  platform,  or  any  of  its  com- ponents.  Each  trouble  symptom  stated  is  followed  by a  list  of  probable  causes  of  the  trouble.  The  pos- sible   remedy   recommended   is   described   opposite the   probable   cause. Yearly X PROCEDURE lubrication   order   is with  the  unit  and  in legible    condition. Appearance.    Inspect the   general   appearance of  the  maintenance platform,  paying  par- ticular   attention   to   the uncleanliness   and poor  condition  of paint.   Inspect   for freedom  of  operation. Wheels   and   tires.   In- spect   tires   for   cuts, wear,  and  proper  infla- tion.   If   necessary,   in- flate   to   40   psi.   Re- place   a   defective wheel  or  tire  (para- graph 47). Hydraulic   system.   In- spect  the  condition  of the   lines   and   fittings. Inspect  the  strainer screen,   clean   if   neces- sary.  At  12-month periods,   drain   fluid from  hydraulic  reser- voir.  Refill  the  reser- voir  (paragraph  35). 27. PLATFORM WILL NOT RISE OR RISES SLOWLY. PROBABLE  CAUSE POSSIBLE REMEDY High   pressure   hose   leaks   Replace   high   pressure hose  (paragraph  36) By-pass  valve  sticking Clean  valve  of  obstruct- (will  not  fully  open) ing  foreign  material (paragraph  33) 8