DC motor - Siemens, s.r.o.

Table 6-4 Recommended torques for tightening the coupling part
Thread size Torque [Nm]
M16 20
M20 30
M24 40
[ID 584]
6.3.5 Assembling the motor
General
Sealing measures
Maintenance
If possible the motor should be assembled on an aligning plate. This ensures that
the position of the brush rocker in relation to the stator housing is correctly set and
the footings are on one level.
Note
When mounting the bearing end shield at the D-end, take care that the windings
protruding from the stator housing are not damaged.
Bare joints between parts (e.g. between housings, bearing end shields and bearing
cartridges) must be cleaned and at least regreased.
If joint sealants have been used where there are higher requirements in terms of
the degree of protection, these joints between parts must likewise be sealed again
during assembly using suitable silicone-free, non-hardening sealing compound. It
is recommended that this sealing compound should then also be used when
inserting the corresponding fixing screws.
If sealing elements are installed, these must be checked and if they are no longer
sufficiently effective they must be replaced.
Screw/bolt locking elements
Screws/bolts or nuts which are mounted together with locking, spring-loaded
and/or force-distributing elements (e.g. safety plates, spring washers, etc.) must be
equipped with identical operational elements again when the motor is assembled.
Form-fit locking elements must always be replaced.
When reassembling the motor, always install fixing screws with a "clamping length"
< 25 mm with suitable locking elements (spring washers, strain washers and the
like) or with a removable locking agent (e.g. LOCTITE). The clamping length is
taken as the distance between the head of the bolt and the point at which the bolt
is screwed in.
SIEMENS AG T61160347010001 (DMHO V9)
Operating instructions 1GG6286-0NA4.-1VV1-Z 6-15