DC motor - Siemens, s.r.o.

Maintenance
Warning
Especially when carrying out cleaning work with compressed air, ensure that
suitable extraction measures are used and you use personal protective gear
(goggles, face mask/filter or similar).
Removing the carbon dust
see also
Deposits of carbon dust on insulating parts must be removed in their entirety, for
example with a brush and suitable extraction device. Motors with a closed internal
circuit without a fine dust filter must be dismantled after about three brush sets
have been worn down and the carbon dust must be thoroughly cleaned from
everything.
Note
When cleaning the brush rockers, take care if a brush-height monitoring device is
fitted that its actuating mechanism is not damaged.
Notice
On fan units with sound absorbers, the surface of the sound absorber elements is
pressure-sensitive. Do not, therefore, clean this directly with compressed air.
Proceed only as follows: carefully brush off large collections of dust that can be
sucked up as a whole by the air flow. If filter mats are fouled, either replace them
or remove them, wash them out in the normal way, dry them and reinstall them
unwetted.
After completing cleaning, check the insulation resistance.
[ID 571]
Checking the insulation resistance [→ Page 4-3]
6.1.5 Maintenance of the carbon brushes
General
When carbon brushes are replaced it must be ensured that the design of the new
carbon brushes matches that of the worn brushes.
The brush type and manufacturer's mark are shown on the upper part of the brush
on carbon brushes.
Warning
When working with brush holders there is a risk of personal injury or material
damage when open pressure levers spring back.
[ID 573]
SIEMENS AG T61160347010001 (DMHO V9)
6-4 Operating instructions 1GG6286-0NA4.-1VV1-Z