Clean up area motor and filter motor. Measure vibration-noise-temperature FS and LS motor. Add grease motor for 15 times-10 times for FS and LS motor. Check RPM-Voltage-Ampere motor-Temperature motor at ER3-ER4  write at form check sheet. Clean up area carbon brush room and filter 363 FA2 from dirty of dust use instrument air supply ( EDI & ADI )