Fitting; Axial Fastening; Demounting - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

6.4.2.1 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. 42: Hollow shaft with parallel keyway, fitting with threaded spindle
1 Machine shaft
2 Hollow shaft
3 Parallel key
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 is drawn against the collar of the machine shaft.
In order to avoid any distortion, it must be supported by a torque arm or a pedestal
(see items 6.11 and 6.12).
Under no circumstances may the gear unit be stressed.

6.4.2.2 Axial fastening

Depending on type, secure the hollow shaft axially on the machine shaft (e.g. with locking ring, end plate,
set screw).
6.4.3

Demounting

Remove the axial securing device from the hollow shaft.
If frictional corrosion has occurred on the seating surfaces, rust­releasing agent may be used in order
to facilitate forcing off the gear unit. The rust releaser can be injected through the pressure­oil
connection (see fig. 41), e.g. using a pump.
When the rust­releasing agent has taken effect, pull the gear unit off with the device (see figs. 43
and 44).
Removing the gear unit from the driven­machine shaft can be done, depending on local possibilities,
as follows:
using forcing screws in an end plate (see fig. 44) or
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.
Each of the two end faces of the hollow shaft is provided with 2 threaded holes (for dimensions,
see fig. 45) to receive bolts for fastening the end plate to the hollow shaft.
7
6
5
4 Nut
5 Threaded spindle
6 Nut
BA 5033 EN 03/2011
54 / 96
2
3
1
4
7 End plate