DC motor - Siemens, s.r.o.

6.1.10 Maintenance of the terminal boxes
Leakproofness
Maintenance
Check terminal boxes regularly for leakproofness, deposits of carbon dust,
damaged insulation and firm connections.
If dust or moisture has penetrated into the terminal box, clean and dry the box and
in particular the insulators. Also check seals and sealing surfaces and eliminate the
cause of the leakiness.
Loading with high current
6.2 Servicing
If the terminal box or motor has been exposed to loading with extreme high current,
the electrical components must be checked.
[ID 578]
6.2.1 First service
Service intervals
The first service is normally carried out approximately 500 operating hours after the
motor has been installed or repaired. The follow-up services must be carried out
after 2000 operating hours in each case.
Action to be performed
Danger
If no inspection windows are fitted and therefore the respective covers need to be
removed in order to observe the commutation behavior, this must always be done
by specially qualified expert personnel in order to reliably ensure that no live or
moving parts are touched.
Protective goggles must be worn.
For the first service and for follow-up services, with the motor running check that:
•= the specified technical data is complied with, such as power consumption,
temperature of the windings, bearings, coolant, etc..
•= no leaks occur (oil, grease, water).
•= the smooth running characteristics and bearing noise of the motor have not
deteriorated.
•= no unpermissible brush sparking occurs during operation.
SIEMENS AG T61160347010001 (DMHO V9)
Operating instructions 1GG6286-0NA4.-1VV1-Z 6-9