DC motor - Siemens, s.r.o.
DC motor - Siemens, s.r.o.
DC motor - Siemens, s.r.o.
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Relubrication<br />
Maintenance<br />
These greases have Lithium soap as thickening agent and mineral oil as the basic<br />
oil. They exceed the standard requirements of DIN 51825.<br />
When using other K3K or K3N greases, which in some cases only fulfill the<br />
minimum requirements in accordance with DIN 51825, regreasing intervals must<br />
be halved. K3N greases have higher temperature reserves than K3K greases.<br />
Caution<br />
Greases with different thickening agents and basic oils must not be mixed.<br />
Special types of grease are used on <strong>motor</strong>s intended for operational temperatures<br />
below –20 °C. These are specified on the lubrication instruction plate. No other<br />
grease types are permitted.<br />
For relubrication, clean the grease nipples, then press in the quantity and type of<br />
grease according to the lubrication instruction plate. The shaft must rotate so that<br />
the new grease can be distributed throughout the bearing. The bearing<br />
temperature rises sharply at first, then drops to the normal value again when the<br />
excess grease is displaced out of the bearing. The consumed grease is collected<br />
outside the bearing. To remove the used grease, detach the outer bearing cover.<br />
The used grease compartment is suitable for holding the grease from approx. 10<br />
relubrication processes with the prescribed quantity of grease according to the<br />
lubrication instruction plate.<br />
Warning<br />
Whenever you work on the locating bearing when the three-phase <strong>motor</strong> is in its<br />
vertical position, support/unload the rotor.<br />
[ID 570]<br />
6.1.4 Cleaning<br />
Cleaning the cooling-air passages<br />
The cooling-air passages through which ambient air flows must be cleaned at<br />
regular intervals. The cleaning intervals depend on the degree of contamination. In<br />
addition, the internal cooling-air passages (where accessible) and the insulating<br />
parts of the commutator and the brush holder must also be cleaned each time a<br />
worn brush set is replaced.<br />
SIEMENS AG T61160347010001 (DMHO V9)<br />
Operating instructions 1GG6286-0NA4.-1VV1-Z 6-3