5. Allow the phase module to slide down the roller tracks by unscrewing the connections at the
lugs.
Figure 9-22 Changing device: joining the roller tracks
6. Pull the phase module onto the stacker. Secure the module with the two stop brackets ⑪.
Figure 9-23 Changing device: stop brackets
7. Remove the screwed connections for the roller tracks, which are now joined together.
8. Place the defective phase module down in a suitable place (e.g. on the wooden beams you
used for placing the changing device on the stacker).
Maintenance
9.5 Repair
SINAMICS SM150 6SL3845-2NN41-8AD2
Operating Instructions Rev.201910281310 EXAMPLE 155
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