TAM 00609 18
DA 100 – 280 03 / 2015
Three phase asynchronous motor air cooled Englisch
scraping brake
Air cooling not active.
Fan wheel blocked
Air supply inadequate due to …
- Shortcircuit in air flow (exhaust
air taken in again)
- Filter urgently requires
cleaning
- Deposits in cooling channels
Check and, if necessary, switch
on
Remove foreign matter
Check air circuit and…
- change air flow arrangement
- check and, if necessary,
clean
- check and, if necessary,
clean
5 Inspection and maintenance
Working on the electric motor:
Works at the electric motor may be carried out only if the motor has come to a stand-
still, is de-energized, depressurized and has cooled down. All connections, such as
screw connections, that were loosened must be tightened again after the inspection or mainte-
nance work.
When carrying out work on the motor, please observe the technical instructions and notes in
the respective chapters in these Commissioning and Manitenance Instructions.
When carrying out maintenance work, observe all safety instructions which also apply for the
commissioning of the motor (comp. Section 4.1)
CAUTION: The optional holding brake does not have a securing function when work is being
carried out on the motor (e.g. holding loads)!
Inspection 5.1
Depending on the local pollution severity, cleaning will have to be carried out regularly on
surfaces, air channels and filters to guarantee the continuous dissipation of heat loss.
If equipped with the optional brake, certain abrasion limits are specified (such as maximum
permitted ventilation slot, limited emergency braking). The degree of abrasion must be checked on
a regular basis. The brake must be replaced on reaching the permitted abrasion limit (refer to Sec-
tion 5.2)
If equipped with the optional shaft sealing ring, this must be checked regularly to ensure that it is
functioning correctly (leaks)..
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