Pilz PMCtendo SZ Series Operating Manual page 44

Service
Maintenance – Every 500 operating hours, or at least once per quarter
Inspect the electrical and mechanical connections and retighten as needed.
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Check for smooth operation of the synchronous servo motor and check the installation
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as needed; if necessary, replace the motor (see the chapter
replacement [
Check the ball bearings for noise and, in the case of deterioration, send in the synchro-
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nous servo motor in order to replace the ball bearings.
Be aware that the ball bearings may be replaced only by Pilz GmbH & Co. KG!
8.2 Procedure in case of faults
Make all personnel working on the machine or motor (machine operators, users, service
staff, etc.) aware of any deviations from normal operation. They indicate that function is im-
paired.
These include:
Increased power consumption, higher temperatures or increased vibrations.
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Unusual noises or smells.
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(Frequent) triggering of monitoring systems.
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In this case, power down the machine and immediately notify the responsible specialist per-
sonnel. Check the protective measures that must be taken when in the movement range of
a motor, e.g. in the machine/system, especially under raised loads.
8.3 Motor replacement
Observe the following when replacing the motor:
If servo motors with motor brakes have been stored longer than 2 years, the motor
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brake must be broken in before using the servo motor.
Check the insulation resistance of the motor winding after long-term storage.
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Observe the information on the motor installation (see the chapter
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Reestablish the data reference for the machine coordinate system after replacement.
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Operating Manual PMCtendo SZ
1002405-EN-04
44]).
CAUTION!
Material damage!
Impacts or other uses of force cause damage to the bearings, feedback sys-
tem and motor shaft.
– Do not hit the motor shaft or motor housing with a hammer or other
tools.
– Do not expose the motor to any compressive stress, impacts or high
acceleration.
– Use backlash-free, frictional collets or couplings.
– For attaching and releasing couplings, gears or belt drives, always
use the intended draw bar thread in the motor shaft. Use a suitable
tool!
Motor
Installation [ 17]).
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