FLENDER N-BIPEX BWN - 8.4 Removing coupling part 1;2 (1 or 2); 8.5 Removing coupling part 3 (3) or 4 (4)

Servicing
8.4 Removing coupling part 1/2 (1 or 2)
M3401-02en Edition 09/2022 45
8.4 Removing coupling part 1/2 (1 or 2)8.4 Removing coupling part 1/2 (1 or 2)
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 elements (set screw, end plate).
4. Use a suitable pulling fixture.
5. Heat up the coupling part1/2(1 or 2) using a burner above the parallel keyway along its
length to maximum 80°C.
Note when doing this the temperature range of the cam ring (50) (refer to section N-
BIPEX cam ring (50) (Page63)). Remove the cam ring(50) where appropriate.
6. Pull off the coupling part1/2(1 or 2). Use suitable lifting gear when doing this.
7. Check the hub bore and the shaft for damage and protect them against corrosion.
8. Replace any damaged parts.
When reinstalling the coupling parts please observe the information in chapters Assembly
(Page25) and Commissioning (Page35).
8.5 Removing coupling part 3 (3) or 4 (4)8.5 Removing coupling part 3 (3) or 4 (4)
Procedure
1. Move the coupled machines apart.
2. Secure the coupling parts to prevent them from falling.
3. Remove the bolts from the TAPER clamping bush (101) or (102).
4. Insert one of the bolts as a clamping screw into the thread of the TAPER clamping bush
(101) or (102) and tighten the bolt.
Use two jacking screws for no. 3535 TAPER clamping bushes or larger.
5. Pull off the coupling part 3 (3) or 4 (4). Use suitable lifting gear when doing this.
6. Check coupling part 3 (3) or 4 (4), the TAPER clamping bush (101) or (102) and the
shaft for any damage and protect them against corrosion.
7. Replace any damaged parts.
When reinstalling the coupling parts please observe the information in chapters Assembly
(Page25) and Commissioning (Page35).