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

6.5.2.1 Fitting with integrated DU bush

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.
When fitting, ensure that the position of the teeth between the machine shaft and
hollow shaft is correct. The correct position can be determined by turning the input
shaft and/or by swivelling the gear unit lightly around the hollow shaft.
Fig. 47: Hollow shaft with internal spline, fitting with DU bush
1 Machine shaft
2 Hollow shaft
3 DU bush

6.5.2.2 Axial fastening

Depending on type, secure the hollow shaft axially on the machine shaft (e.g. with locking ring, end plate,
set screw).
6.5.3

Demounting

Remove the axial securing device from the hollow shaft.
If frictional corrosion has occurred on the seating surfaces, rust­releasing agent may be used in order
to facilitate forcing off the gear unit. The rust releaser can be injected through the pressure­oil
connection (see fig. 48), e.g. using a pump.
The end plate and the locking ring must first be removed.
When the rust­releasing agent has taken effect, pull the gear unit off with the device (see figs. 48
and/or 49).
Removing the gear unit from the driven­machine shaft can be done locally as follows:
using forcing screws in an end plate (see fig. 49) or
using a central threaded spindle or
preferably using a hydraulic lifting unit ("Lukas").
7
5
6
4 Nut
5 Threaded spindle
6 Nut
BA 5033 EN 03/2011
58 / 96
3
1
4
2
7 End plate