RECONDITIONING PROCEDURE PISTON CROWN
![1](/images/procedure/piston-crown/1.jpg)
1. Cleaning / inspection including mpi/dye check
![1](/images/procedure/piston-crown/2.jpg)
2. Burned / damaged ring grooves
![1](/images/procedure/piston-crown/3.jpg)
3. Premachining piston crown and mpi/dye check
![1](/images/procedure/piston-crown/4.jpg)
4. Preheating / SAW welding of piston crown
![1](/images/procedure/piston-crown/5.jpg)
5. Piston crown after heat treatment
![1](/images/procedure/piston-crown/6.jpg)
6. Cnc machining of ring grooves
![1](/images/procedure/piston-crown/7.jpg)
7. Double chromium plating / grinding ring grooves
![1](/images/procedure/piston-crown/8.jpg)
8. Final inspection / pressure test (evt class approval)