Cleaning the cooling air ducts
Regularly clean the cooling air ducts through which the ambient air flows.
The frequency of the cleaning intervals depends on the local degree of fouling.
Damage to the machine when cleaning with compressed air or water jets
• Do not direct compressed air or water jets in the direction of the shaft outlet or machine
openings.
• Avoid direct impact of compressed air and water jets on sealing elements of the machine.
9.3.9
Cleaning the fan cover of machines for the textile industry
Regularly remove fluff balls, fabric remnants, and similar types of contamination from the fan
cover of machines for the textile industry (particularly at the air passage opening between the
fan cover and cooling fins of the machine enclosure) to ensure that the cooling air can flow
without obstruction.
9.3.10
Drain condensate
If there are condensation drain holes present, open these at regular intervals, depending on
climatic conditions.
WARNING
Hazardous voltage
The winding can be damaged if objects are introduced into the condensation holes (optional).
This can lead to death, serious injury or material damage.
Note the following to maintain the degree of protection:
• Switch off the machine so that it is in a no-voltage condition before you open the
condensation drain holes.
• Close the condensation drain holes, e.g. using T-plugs, before commissioning the machine.
NOTICE
Reduction of the degree of protection
If condensation drain holes are not closed, then this can result in material damage to the motor.
In order to maintain the degree of protection, after the condensation has been drained, you
must close all of the drain holes.
Maintenance
9.3 Inspection and maintenance
1LE5, 1PC4 shaft heights 280 ... 355
104
Operating Instructions, 11/2022, A5E41454666A
