Fitting; Axial Fastening; Demounting - Siemens REDUREX Assembly And Operating Instructions Manual

6.4.1.1 Fitting

• Fit the gear unit by means of nut and threaded spindle. The counterforce is provided by the hollow shaft.
The hollow shaft must be exactly aligned with the machine shaft to avoid canting.
Fig. 15: Hollow shaft, mounting with threaded spindle
1 Machine shaft
2 Hollow shaft
3 Red­bronze bush
Instead of the nut and threaded spindle shown in the diagram, other types of equipment such as a hydraulic
lifting unit (type "Lukas") may be used.
The hollow shaft may be tightened against a machine­shaft collar only if the gear­unit
configuration is one of the following:
­ Torque arm
­ Support with gear­unit swing base
With a different arrangement the bearings may be excessively stressed.

6.4.1.2 Axial fastening

Depending on type, secure the hollow shaft axially on the machine shaft (e.g. with locking ring, end plate,
set screw).
6.4.2

Demounting

• Remove the axial securing device from the hollow shaft.
• If frictional corrosion has occurred on the seating surfaces, rust­releasing agent may be used in order
to facilitate forcing off the gear unit.
• When the rust­releasing agent has taken sufficient effect, pull the gear unit off with the device
(see fig. 16).
• Removing the gear unit from the driven­machine shaft can be done locally as follows:
─ using a central threaded spindle or
─ preferably using a hydraulic lifting unit ("Lukas").
The end plate and/or the auxiliary plate for forcing off the gear unit are not included in our
delivery.
7
6
5
4 Nut
5 Threaded spindle
6 Nut
BA 5200 EN 08/2010
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2
3
1
4
7 End plate