Operation
6
Operation
For pumps in potentially explosive atmospheres (
→
ATEX
additional manual).
6.1
Preparing for commissioning
6.1.1
Check downtimes
Check downtimes
6.4 Restoring the pump to service,
6.1.2
Filling and bleeding
WARNING
Risk of injury and poisoning due to hazardous pumped
liquids!
Use protective equipment for any work on the pump.
Safely collect the fluid and dispose of it in accordance with
environmental regulations.
NOTE
Material damage as a result of dry running
Make sure the pump is filled properly.
1. If present, fill and vent self-priming container with fluid.
2. Open the suction-side fitting.
3. Open the pressure-side fitting.
4. Fill pump and suction pipe with fluid.
5. Verify that no pipe connections are leaking.
6.1.3
Check direction of rotation
DANGER
Danger to life from rotating parts.
Use personal protective equipment when carrying out any
work on the pump.
Maintain an adequate distance from rotating parts.
NOTE
Material damage as a result of dry running
Make sure the pump is filled properly.
1. Switch on motor for max. 2 seconds and switch it off again
immediately.
2. Check whether the sense of rotation of the motor matches
the direction of rotation on the fan impeller.
3. If the sense of rotation is different: change over the two
phases
5.5 Electrical connection, Page 17).
6.2
Commissioning
6.2.1
Switching on
Pump set up and connected properly
Motor set up and connected properly
Align motor precisely to the pump
All connections stress-free and sealed
All safety equipment installed and tested for functionality
Pump prepared, filled and vented correctly
Auxiliary systems switched on if present.
DANGER
Risk of injury due to running pump!
Do not touch the pump when it is running.
Ensure that the coupling guard is attached.
Do not carry out any work on the pump when it is running.
Allow the pump to cool down completely before starting any
work.
DANGER
Risk of injury and poisoning due to pumped liquid spray-
ing out!
Use personal protective equipment when carrying out any
work on the pump.
NOTE
Risk of cavitation if suction flow is restricted!
Open the suction-side fitting and do not use it to regulate
the flow.
Do not open the pressure-side fitting beyond the operating
point.
NOTE
Material damage due to overheating.
Do not operate the pump for long periods with the pressure-
side fitting closed.
Observe minimum flow (
→
documents for the particular
order).
NOTE
Material damage as a result of dry running
Make sure the pump is filled properly.
1. Turn on auxiliary systems (if present).
2. Open the suction-side fitting.
3. Close the pressure-side fitting.
4. Switch on the motor and check it for smooth running.
5. Once the motor has reached its nominal speed, open
the pressure-side fitting slowly until the operating point is
reached.
18
SHM
BA-2018.08.21 EN
300 092
