Instruction manual

Inspection Maintenance and Inspection
MELSERVO J2-Super 8 - 1
8 Maintenance and Inspection
8.1 Inspection
It is recommended to make the following checks periodically:
 Check for loose terminal block screws. Retighten any loose screws.
 Check the servo motor bearings, brake section, etc. for unusual noise.
 Check the cables and the like for scratches and cracks.
 At regular intervals check that the various components all function properly.
 Check the servo motor shaft and coupling for misalignment.
8.2 Life
The following parts must be changed periodically as listed below. If any part is found faulty, it
must be changed immediately even when it has not yet reached the end of its life, which
depends on the operating method and environmental conditions. For parts replacement, please
contact your sales representative.
Part name Life guideline
Servo amplifier
Main circuit capacitor 10 years
Relay
Number of power-on and number of
forced stop times: 100000
Cooling fan 10000 to 30000 hours (2–3 years)
Absolute position battery 10000 hours
Servo motor
Bearings 20000 to 30000 hours
Encoder 20000 to 30000 hours
Oil seal, V ring 5000 hours
Tab. 8-1: Life of parts