Siemens SIMOTICS DP series, Руководство по эксплуатации, Страница: 108 / 150

Maintenance
9.3 Corrective maintenance
Standard motors SH 63 ... 355
106
Operating Instructions, 12/2018, A5E38483075A
Note
Before commencing removal, you should mark how each of the fastening elements has been
assigned, as well as how internal connections are arranged. This simplifies subsequent
reassembly.
Avoid damaging the windings protruding out of the stator enclosure when assembling the
end shield.
If possible, assemble the machine on and alignment plate. This ensures that the mounting
feet surfaces are all on the same plane.
Sealing measures
1.
Apply the necessary liquid sealant, e.g. Fluid-D, Hylomar, to the centering edge.
2. Check the terminal box seals, and if required, replace these.
3. Repair any damage to the paint, also to screws/bolts.
4. Take the necessary measures to ensure compliance with the applicable degree of
protection.
5. Do not forget the foam rubber cover in the cable entry. Completely seal the holes, and
ensure that cables do not come into contact with sharp edges.
See also
Terminal boxes, end shields, grounding conductors, sheet metal fan covers (Page 142)
9.3.1 Rolling bearings
Refer to the rating plate or the catalog for the designations of the bearings being used.
Bearing lifetime
Prolonged storage periods reduce the useful lifetime of the bearing grease. For permanently
lubricated bearings, this reduces the bearing service life.
We recommend that the grease is replaced after a storage time of 12 months. Replace
greased bearings also in the case of closed bearings (suffix 2Z or 2 RS). After 4 years in
storage, generally replace all rolling bearings and grease.