Preventive Maintenance of Tablet Compression Machine


  1. OBJECTIVE             
  1.  To lay down a procedure for Preventive Maintenance of Tablet Compression Machine
  1. RESPONSIBILITY                                                  
  • Assistant – Engineering    – To follow the SOP
  • Executive – Engineering    – To Comply the SOP
  1. PROCEDURE           
  • Weekly maintenance
  • Check the machine rotation with hand wheel, it should rotate freely.
  • Check the hydraulic oil, gearbox oil levels, should be 3/4th of the oil chamber.
  • Check the punch lubrication oil level, maintain up to the mark.
  • Check the powder conveying system for proper functioning.
  • Check all the PU pipes and PU connectors for leakages.
  • Lubricate all moving parts with specified lubricant.
  • Monthly maintenance
  • Check all the movable parts for proper lubrication, if required lubricate them.
  • Check the gearbox oil level, Punch lubrication oil level and hydraulic oil levels, if required top up them with specifies lubrication oil up to the mark.
  • Check the PMM and feeder motors are moving freely, if required replace the bearings.
  • Check the condition of PLC terminals, contactors and relays, if required clean them with CTC.
  • Check all the inter locks working and limit switches condition, if required tighten the line connections.
  • Check the powder conveying system vacuum unit, if required clean the cylinder and the vacuum assembly.
  • Yearly maintenance
  • Check the oil seals of the gearbox, if required replace with new seals.
  • Drain the gearbox oil and refill with fresh oil up to the mark.
  • Check the bearings of all moving parts, brackets and motor, if found any abnormality replace the worn out bearings.
  • Check the hydraulic pump oil seals condition, if required replace the seals.
  • Check the timing belts condition, if required replace the damaged belt.
  • Check all the pneumatic and solenoid valves condition, if required replace the worn out items.
  1. ABBREVIATIONS
  • PU    :  POLY URETHANE
  • PMM:   PRESSURE MAIN MOTOR
  • PLC  :  PROGRAMMABLE LOGIC CONTROL
  • CTC  :  CARBON TETRA CHLORIDE   
  1. REFERENCES

Nil      

  1. ANNEXURES
  • Annexure-1      Weekly preventive maintenance checklist
  • Annexure-2      Monthly preventive maintenance checklist.
  • Annexure-3      Yearly preventive maintenance checklist

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