Siemens SIMOTICS XP 1MB5 SH400, Руководство по эксплуатации, Страница: 133 / 166

3. Warm up the labyrinth sealing ring. Push the labyrinth sealing ring to approx. 3 mm before
the bearing cover before the paint or adhesive cures on the set screws.
3 mm
Figure 9-7 Position the set screws for the labyrinth sealing ring on the outer bearing cover
4. Locate the labyrinth sealing ring in position by screwing the set screws in. Check that the tips
of the set screws engage with the keyway with a short axial movement.
The correct axial position is obtained when the locating setscrews screwed into the keyway
engage.
9.3.7 Links
● Replace any corroded screws.
● Take care not to damage the insulation of live parts.
● Document the position of any rating and supplementary plates that have been removed.
● Avoid damaging the centering edges.
9.3.8 Canopy; mounting a rotary pulse encoder under the canopy
Guide the fixing screws through the holes on the external surface of the canopy and tighten to
a torque of 3 Nm ±10%.
9.3.9 Tightening torques, terminal board and grounding
The tightening torques for the electrical connections of the terminal board and grounding are
listed in the Table (Page 155) under case A.
9.3.10 Seal the motor
● Extreme caution and attention to cleanliness are vital to installation.
● Clean all bare joints between parts such as housings, bearing shields and bearing bushes
etc., and remove old sealant material.
Maintenance
9.3 Corrective maintenance
1MB5 SH 400/450
Operating Instructions, 05/2019, A5E45959221A
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