1. Warehousing
 2. Disassemble
 3. Repair of Cylinder Tube (Honing Work)
 4. Manufacture of Piston Rod 
 5. Repair of Piston 
 6. Repair of Rod Cover 
 7. Repair of Head Cover
 8. Seal Kit Change
 9. Assembly of Stacker Boom Belt Cylinder 
 10. Performance Test
 11. Rust control, Painting, and Packaging