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BA 5846 en 05/2015
6.5.3 Demounting
• Remove the axial securing device from the hollow shaft.
• If frictional corrosion has occurred on the seating surfaces, rustreleasing agent may be used to
facilitate forcing off the gear unit. The rust releaser can be injected through the pressureoil connection
(see figure 25), using a pump.
• When the rustreleasing agent has taken effect, pull the gear unit off using the device (see figures 27
and 28).
• Removing the gear unit from the drivenmachine shaft can be done as follows:
─ preferably using a hydraulic lifting unit,
─ using forcingoff screws in an end plate (see figure 28), or
─ using a central threaded spindle.
Note
The end plate and/or the auxiliary plate for forcing off the gear unit are not included in the Siemens
delivery.
5
4
6
3
1
2
7
Fig. 27: Hollow shaft with parallel keyway, demounting with hydraulic lifting unit
1 Machine shaft
2 Hollow shaft
3 Parallel key
4 Hydraulic lifting unit
5 Threaded spindle
6 Pressure-oil connection
7 Auxiliary plate for forcing out