FLENDER RUPEX, Assembly And Operating Instructions Manual

Page: 49 / 80

Servicing
8.3 Replacing wearing parts
M3600-02en Edition 09/2022 49
8.3.4.3 Potential problems when pressing out bolts (4) with grease
8.3 Replacing wearing parts
Problem Cause Possible solutions
Bolt (4) is not released despite
the fact that the screw is fully in-
serted. Pressure is too low to release
the bolt (4). • Use a longer screw (11) (min-
imum strength class 8.8).
• Fill more grease into the
tapped hole of the bolt (4).
Bolts (4) are difficult or im-
possible to release. Liquid locking agent for screws
(11) has sealed the cross bore. Clean the tapped hole and the
cross bore of the bolt (4).
Grease is escaping. The bolt (4)
is not released. The tapped hole is not suffi-
ciently sealed.
1. Remove the screw (11).
2. Seal the screw (11) again
in Teflon tape or Teflon
sealing cord.
3. Press out the bolt (4)
again with grease.
8.4 Removing coupling part 1 (1), 2 (2) or 20 (20)
8.4 Removing coupling part 1 (1), 2 (2) or 20 (20)
The procedure to be followed depends on the existing shaft-hub connection or the flange
connection:
• Removing coupling part 1 (1) or 2 (2) with shaft and hub connected by a parallel key
(Page 49)
• Removing coupling part 1 (1) or 2 (2) with shaft and hub connected by a pressurised oil
interference fit (Page 50)
• Removing coupling part 20 (20) with flange connection (Page 52)
8.4.1 Removing coupling part 1 (1) or 2 (2) with shaft and hub connected by a
parallel key
8.4 Removing coupling part 1 (1), 2 (2) or 20 (20)
WARNING
Danger from burners and hot coupling parts
Risk of injury due to burners and hot surfaces. Burners or hot coupling parts can lead to an
explosion in potentially explosive atmospheres.
• Wear suitable protective equipment (gloves, safety goggles).
• Ensure that the area is not at risk of explosion.
Procedure
1. Move the coupled machines apart.
2. Secure the coupling parts to prevent them from falling.
3. Remove the axial locking element (set screw, end plate).
4. Use a suitable pulling fixture.