Do clean up area motor and filter motor. Measure vibration-noise-temperature of FS and LS motor. Add grease motor for 25 times and 30 times for FS and LS motor make vibration below 4 mm/s and noise below 2 gE. Check at ER4 and ER5 for RPM-Voltage-Ampere-KW-Temperature put at data check sheet ( AGUS & MUHAIMIN )