Maintenance/repair
Important notes
9
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Lenze • BA 33.0006 • 5.1
9 Maintenance/repair
9.1 Important notes
Danger!
Hazardous voltage on the power connections even when disconnected
from mains: residual voltage >60 V!
Before working on the power connections, always disconnect the drive
component from the mains and wait until the motor is at standstill.
Verify safe isolation from supply!
Stop!
Repair work or replacement of defective safety encoders must only be
carried out by Lenze service personnel!
Shaft sealing rings and roller bearings have a limited service life.
Regrease bearings with relubricating devices while the lowvoltage machine is running.
Only use the grease recommended by the manufacturer.
If the grease drain holes are sealed with a plug, (IP54 drive end; IP23 drive and nondrive
end), remove plug before commissioning. Seal bore holes with grease.
9.2 Maintenance intervals
Inspections
• If the machine is exposed to dirt, clean the air channels regularly.
9.2.1 Motor
• Only the bearings and shaft sealing rings become worn.
– Check bearings for noise (after approx. 15,000 h at the latest).
• In order to prevent overheating, remove dirt deposits on the drives regularly.
• We recommend carrying out an inspection after the first 50 operating hours. In
this way, you can detect and correct any irregularities or faults at an early stage.
9.2.2 Safety encoder
After a service life of 10 years, an inspection of the metal elastomer torque plate is
required for the AS1024-8V-K, AS1024-8V-K2; AM1024-8V-K, and AM1024-8V-K2
encoders. If no replacement is required, an inspection interval of max. 5 years has to be
observed.
Stop!
Repair work or replacement of defective safety encoders must only be
carried out by Lenze service personnel!
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