Pendekatan Metode ISMO Dalam Menyusun Penjadwalan Perawatan Gearbox dan Rantai Pengangkut Ore Departemen Circular Sintering PT. IRNC

Abstrak

PT.  IRNC  is  a  company  that  operates  in  the  smelter  industry.  One  of  the company's production processes is to produce and distribute raw materials in the  form  of  wet  Ore  into  iron  and  steel  products.  The  distribution  of  raw materials  in  this  company  is  continuously  ongoing,  leading  to  frequent failures  in  the  functions  of  the  gearbox  and  the  chain  of  transportation  of mineral raw  materials. The  company has a bustling  machine activity but is not  associated  with  the  preventive  maintenance  activities  of  the  machine. One  of the activities that  can solve the  maintenance problem is scheduling preventative maintenance activities and periodic repairs to the gearbox and chain  carrier  of  raw  materials.  Preventive  maintenance  is  the  maintenance activity on the machine which has the purpose of preventing the occurrence of  damage,  or  the  maintenance  method  for  the  machine  planned  for  the prevention to extend the life of the machine as well as to avoid the failure of function  on  the  machinery  that  may  occur  during  the  production  process. This research aims to provide recommendations for scheduled maintenance of  the  machine  with  a  preventive  maintenance  approach  with  the  ISMO Method.  The results of the research  carried  out based  on the type of  work performed  inspection  (I)  and  small  repair  (S)  obtained  results  respectively for gearbox 13 times inspections (I), and 21 times small repairs (S), while for the  chain  of  transportation  of  Ore  8  times  inspection  and  four  times  small reparations,  and  the  number  of  workers  involved  21  people,  with  the  total labor costs of Rp—863,820 million per year.