Lenze MDxMA Three-phase AC motors ATEX 3D category - Manual (Page 13)

Maintenance
Maintenance intervals
Maintenance and repair
4
13 BA 12.0031 EN 2.1
Types of inspection
Visual Close
Inspection to be made in the time interval of operating hours: --- 500 h
Not later than after: 1 month 3 months
Actions
Visual inspection of the geared motor.
Dust accumulation should be cleaned depending on the amount of dust collected. It is
recommended to remove dust accumulations of 1 mm thickness and more on the
housing and in the cooling ribs.
•
Check for oil entering the motor by checking the oil level in the gearbox acc. to Ch. 4.3
of the ATEX gearboxes operating instructions.
•
4.2 Maintenance and repair
Types of inspection
Maintenance/repair
Maintenance/repair to be made in the time interval of operating hours: 1) 2)
Not later than after: 5 years ---
Actions
Replace shaft sealing rings of motor.
Check condition of sealing lip contact area, repair if necessary.
Replace roller bearing grease
•
Replace roller bearings of the motors. •
1) Conforming with the gearbox: Determining the time frame for measuring the oil temperature according to Chapter
4.5 and oil change diagram according to Chapter 5.2 of the ATEX gearbox operating instructions.
2) Conforming with the gearbox: Determining the time frame according to roller bearing maintenance diagram
according to Chapter 5.2.2 of the ATEX gearbox operating instructions.
Danger!
The repair work of explosion-protected electrical machines must only be
performed by the manufacturer or skilled personnel qualified for these tasks in
a workshop equipped for these tasks. Use only the respective original spare
parts from Lenze. The operating steps must be performed in accordance with
the instructions from the manufacturer.
Equipment which has been changed or repaired at parts that guarantee the explosion
protection, must only be started again if an expert has confirmed the conformance with
the valid technical regulations.
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