DC motor - Siemens, s.r.o.

Maintenance
Warning
Before starting work on the motor ensure that the motor/plant has been
deenergized in compliance with the appropriate specifications and regulations.
In addition to the main circuits, also ensure that supplementary and auxiliary
circuits are also deenergized, especially the standstill heating.
Dismantling the motor
Circuit connections
Note
If the motor has to be transported, please observe the information and instructions
in section on "Transport and storage". All repair work must always be performed by
suitably qualified expert personnel. If necessary, consult the SIEMENS service
center.
If the motor has to be disassembled, it makes sense to disconnect the connecting
cables at the terminals and to detach the entry plate from the terminal box frame.
In this way the positions of the cables in relation to each other and the effective
sealing of the cables in the cable entry points is largely retained. Check the
labeling of the connecting cables, and if defective renew it.
The terminal diagram only shows the conditions required for the supply connection
without taking account of any compensating and auxiliary windings that may be
present. Label internal connections first if they are to be disconnected during
maintenance work.
[ID 582]
6.3.2 Disassembling the motor
Safety information
Caution
When working on the locating bearing when the motor is in its vertical position,
support the rotor.
With vertical attachment of rotors:
The center holes in the shaft ends (DIN 332) have inset threads, i.e. eye-bolts to
DIN 580 are not suitable, as only a few thread turns would be engaged. Depending
on the rotor weight and load direction, the use of other suitable elements with a
screw reach of > 0 0.8 x thread diameter might be necessary.
SIEMENS AG T61160347010001 (DMHO V9)
6-12 Operating instructions 1GG6286-0NA4.-1VV1-Z