Dura 65
23 | Page
Version 1.0v-05/2021
© Verder International B.V
7.6 Hose Change
Risk of injury!
u
Always isolate the power supply before working on the
pump.
Risk of injury if the hose is expelled too quickly!
u
Slowly remove the hose by running the motor at
a reduced speed.
Risk of injury while dismounting the pump!
u
Use protective equipment when carrying out any work on
the pump.
u
For the tightening torque values, please refer to
(
g
Appendix A).
The hose change involves removal and re-installing the
port flanges.
Checklist:
[
Motor isolated.
[
System secured against being switched back on again.
[
Close the suction and discharge side valves.
1. Place a suitable container under the lower port flange.
2. Remove the drain port from the lower port flange and allow
any excess lubricant to drain out.
3. Remove the ¼ turn flange connector by rotating it to 90°
anti-clockwise, then remove the bolts.
4. Slide the port flange off the hose.
WARNING
CAUTION
Figure 21 Grease the Gearbox Adaptor/Bearing Carrier
Drain Port
5. Remove the O-ring and the clamp ring. Check that the
O-ring and the clamp ring are not damaged and replace
them if necessary.
6. Repeat 1-5 steps to remove the upper port flange.
7. Use the motor to drive out the old hose. If no power
is available, remove the fan cover and turn the fan shaft by
hand or using suitable leverage. Care must be taken not to
damage the fan blades when using this method.
8. Clean the pump housing.
We recommend to clean the pump housing through the service
cover, for additional information, please refer to (
g
7.2.1).
9. Inspect the flanges for damage and signs of wear.
10. For installing the hose and port flanges, please refer to
sections (
g
5.7 and 5.8).
Figure 22 Remove the Lower Port Flange
Figure 23 Remove the O-ring and Clamp Ring
Note
