Pilz Cable PMCprimoDrive>Mod-Profibus:L=0,45m - Manual (Page 45)

Operating Manual: PMCtendo AC 9-3
Changing the servo motor
When uninstalling you must use the tightening thread provided in the motor shaft and, if
possible, warm up the drive elements. Do not use excessive force as this will damage
bearings, feedback and the motor shaft. Use a suitable extraction tool.
INFORMATION
You must read the information in the section entitled “General guidelines for
maintenance and installation” before changing the servo motor.
Please note the following when changing the motor:
• If servo motors have been in storage for longer than 2 years, the holding brake must
be resurfaced before the servo motor is used.
- Only resurface the holding brake while the servo motor is uninstalled!
- With the holding brake in a closed condition, turn the servo motor by hand for
approx. 50 revolutions.
The holding brake is now ready for operation.
• Please refer to the information in the chapter entitled “Installation”, under “Installing
the servo motor”.
• On servo axes with indirect position measuring via the encoder, the reference to the
machine coordinate system is lost.
CAUTION!
Injury due to unintended axis movements!
Once the unit has been exchanged, restore the reference to the machine coordinate
system.
Spacing washer
Tightening thread
Extraction tool
Fig. 9-1: Tightening thread in the motor shaft