Clean up area motor-filter motor from dirty of dust use instrument air supply. Measure vibration-noise motor of FS and LS add grease motor 25 times for FS and LS. Check at ER4 and ER5 for RPM-Voltage-KW-Ampere-Temperature fill in at check sheet motor note replace AUTO grease tank at L63 MD1-L63 FN1 for FS and LS with spare unit ( MUHAIMIN & DADANG )