Troubleshooting
8
Troubleshooting
For pumps in potentially explosive atmospheres (
→
ATEX
additional manual).
DANGER
Danger to life and material damage due to magnetic field.
Make sure that personnel with pacemakers do not com-
plete work on the pump.
Secure the work place and if necessary cordon off:
–
Make sure that personnel with pacemakers keep a safe
distance of > 1 m.
–
Make sure that no magnetizable metal parts can be
attracted by the pump's magnetic coupling.
–
Make sure that parts of the magnetic coupling cannot
be attracted by the magnetizable metal parts.
Maintain a safe distance of at least 150 mm from the mag-
netic coupling for magnetically sensitive objects.
If faults occur which are not specified in the following table or
cannot be traced back to the specified causes, please consult
the manufacturer.
Possible faults are identified by a fault number in the table
below. This number identifies the respective cause and rem-
edy in the troubleshooting list.
Fault
Number
Pump not pumping
1
Pumping rate insufficient
2
Pumping rate excessive
3
Pumping pressure insufficient
4
Pumping pressure excessive
5
Pump running roughly
6
Pump leaks
7
Excessive motor power uptake
8
Tab. 5
Fault/number assignment
Fault number
1
2
3
4
5
6
7
8
Cause
Remedy
X
–
–
–
–
–
–
–
Intake / suction pipe and/or pressure line
closed by fitting
Open the fitting.
–
X
–
X
–
–
–
–
Intake / suction pipe not completely open
Open the fitting.
X
X
–
X
–
X
–
–
Intake / suction pipe, pump or suction
strainer blocked or encrusted
Clean intake/suction pipe, pump or
suction strainer.
–
X
–
X
–
X
–
–
Cross section of intake / suction pipe too
narrow
Increase cross section.
Clean encrustation from suction pipe.
Fully open fitting.
X
–
–
–
–
–
–
–
Transport and sealing cover still in place
Remove the transport and sealing cover.
Dismount the pump and inspect it for
dry-running damage.
26
SHM
BA-2018.08.21 EN
300 092
