1. Warehousing of PX1500 Mill Main Gear Box
 2. Disassembling
 3. Washing
 4. Inspection
 5. Repair of Bevel Pinion Shaft
 6. Repair of Output Shaft
 7. Replacement of Bearing & Seal Kit
 8. Repair of Pinion Shaft Reducer Stopper
 9. Manufacuring of Input Retainer
 10. Replacement of Bearing & Retainer
 11. Repairing Oil Pump
 12. Washing & Performance Test of Oil Radiator
 13. Manufacturing Oil Filter
 14. Assembly
 15. Rust control, Painting, and Packaging