Clean up area motor and filter motor. Measure vibration-noise of FS and LS, add grease motor 25 times- 30 times for FS and LS make vibration below 4 mm/s and noise below 2 gE. Check at ER5 and ER4 for RPM-KW-Voltage-Ampere-Temperature and fill in at check sheet ( MUHAIMIN & AGUS )