Centa CENTAX-G - 9.11.2 Dismantling the Hub with Conical Oil Interference Fit

Assembly and operating instructions
CENTAX-G
020G-00050…00090-F.10
M020-00009-EN
Rev. 4
CENTA Antriebe Kirschey GmbH 48 / 52
9.11.2 Dismantling the hub with conical oil interference fit
See Fig. 6-2:
WARNING
Injury and material damage can occur as a result of:
 Non-compliance with the operating instructions for the hydraulic
pumps
Before carrying out work with the hydraulic pumps, do not fail to read
their operating instructions. Only ever work with hydraulic pumps as
described in their operating instructions.
WARNING
Injury and material damage can occur as a result of:
 Hydraulic fluid spraying out
Use protective goggles.
WARNING
Injuries and material damages can occur by:
 Suddenly loosening hubs
Secure the hub with a hydraulic tool against sudden axial loosening.
IMPORTANT
We recommend the following mounting fluids:
 For mounting:
Oil with a viscosity 300 mm
2
/s at 20°C, e.g. SKF LHMF300
 For dismantling:
Oil with a viscosity 900 mm
2
/s at 20°C, e.g. SKF LHDF900
 Remove the screw plug (19) from the hub (3).
 Connect the pump (p
max
= 3000 bar) to the thread G¼ or G¾ (c) of hub (3)
to expand the hub.
 Screw the pump to the shaft (A), in order to hold the hub.
 Build up oil pressure in order to hold the hub.
 Build up oil pressure to expand the hub (p
max
= 2000 bar).
 Slowly reduce the oil pressure for holding the hub.
 Reduce the oil pressure for expanding the hub.
 Repeat the above mounting section until the hub is completely released from
the shaft.
 Remove the pump for holding the hub from the shaft (A).