Maintenance
‑141‑
Equipment Components
Standard Replacement
Interval
Remarks
Servo drive
Bus filter capacitor About five years
The standard
replacement interval is
for reference only.
If any device/
component works
improperly within the
replacement interval,
replace it immediately.
Cooling fan
2 to 3 years (10000 h to
30000 h)
Aluminum electrolytic
capacitor on the PCB
About five years
Pre‑charge relay
100,000 operations
(depending on the
operating conditions)
Pre‑charge resistor
20,000 operations
(depending on the
operating conditions)
Motor
Bearing
3 to 5 years (20,000 h
to 30,000 h)
Oil seal 5000 h
Encoder
3 to 5 years (20,000 h
to 30,000 h)
Absolute encoder
battery
Depends on the
operating condition.
See the operation
instructions for the
encoder battery for
details.
4.3 Parts Replacement
4.3.1 Disassembling the Motor Flat Key
● Observe all the requirements presented in this chapter. Failure to comply may
result in equipment fault or damage.
● Violent disassembly is not allowed. Take enough care during disassembly to
prevent personal injury.
Standard MS1 series motors in flange sizes 60, 80, and 130 adopt C‑type flat key that
carries the disassembly hole. To disassemble the flat key, select a proper disassembly
bolt (inner hexagon bolt recommended) based on the following table.
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