According to the requirement in PO, Party B dispatched 2 people to diagnose and trouble-shooting the fluid coupling malfunction on site of DSSP Sumsel. The service include:(1) Diagnose the reason that cause the low working oil pressure of the fluid coupling.(2) Make a proposal and conduct Party A to solve the malfunction until the equipment running normallyHerein, party A confirm that the spare parts are already received.Herein, party A confirm that Party B have finished the diagnose and maintenance work of the fluid coupling completely. This certificate is issued to act as attachment as required for payment of above work.