5.1 Motor Inspection535. Servo System Maintenance/Inspection5.1 Motor InspectionThe procedures for simple daily maintenance of the servomotor are shown in Table 5.1.Because AC servomotors are brushless, simple daily inspection is sufficient. The inspectionperiods in the table are standard scales. Determine the usage conditions and environment, andthen decide an appropriate inspection period.Do not disassemble the servomotor for maintenance/inspection. Contact your Yaskawarepresentative or sales office if the servomotor is to be disassembled.Table 5.1: Servomotor InspectionInspectionItemInspectionPeriodInspection/WorkContent NotesCheck forvibration or noise Daily Inspect by touch or hearing. The level should not begreater than normal.ExternalInspectionAccording to soilingconditions Clean with cloth or air. －Changing the oilsealOnce every 5,000hours minimumRemove from machine andreplace.Only for motors with oilseals.ComprehensiveInspectionEvery 20,000 hoursor 5 years,minimumContact your Yaskawaservice department.The customer should notdisassemble/clean theservomotor.Important
