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Inspection
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
Servo amplifier
Servo motor
Tab. 8-1: Life of parts
MELSERVO J2-Super
Main circuit capacitor
Relay
Cooling fan
Absolute position battery
Bearings
Encoder
Oil seal, V ring
Maintenance and Inspection
Life guideline
10 years
Number of power-on and number of
forced stop times: 100000
10000 to 30000 hours (2–3 years)
10000 hours
20000 to 30000 hours
20000 to 30000 hours
5000 hours
8 - 1
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