Mixing pump G 4 X FU 230/400V / Part 2 Overview, operation and service
Operation
3
Figure 56: Suction strainer with filter
screen item no. 00136619
The end of the suction line (3) has to be equipped with a suction
strainer with filter screen and built-in non-return valve.
We recommend an additional filter for fine particles in the suction line.
The flow rate of the pump decreases with increasing
length of the suction line. Connect the booster pump as
close as possible to the water sampling point (pressure is
better than suction).
If all these points have been observed the pump can be switched on.
Depending on the length of the suction line, the suction time can be a
few seconds.
If the pump is still not delivering after a short time, this may have one
of the following causes:
There is still air in the pump and this has to be completely vented
again.
The suction line has a leak and the pump draws air.
The suction-side screen is clogged.
There is a kink in the suction hose.
The maximum suction head is exceeded.
NOTE
The booster pump must not run dry to avoid any damage!
5.4
Shutdown in case of emergency
Shutdown in case of emergency
In dangerous situations, machine movements have to be stopped as
quickly as possible, and the power supply has to be disconnected.
In case of danger proceed as follows:
1. Switch off the main reversing switch immediately.
2. Secure the main switch against reactivation.
3. Inform responsible person at the operational site.
4. If necessary call for medical assistance and fire brigade.
5. Recover persons from the danger zone, initiate First Aid measures.
6. Keep access routes free for emergency vehicles.
7. If the severity of the emergency permits, inform the competent
authorities.
8. Assign specialised personnel with the troubleshooting.
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