Publicité
Les langues disponibles
Les langues disponibles
8. Troubleshooting
The following points must be taken into account to avoid
personal and material damage when troubleshooting ma-
chine failures:
•
Correct a failure only if you have qualified staff, i.e. the
individual work must be carried out by trained special-
ist personnel, e.g. electrical work must be carried out
by a qualified electrician.
•
Always prevent the machine from unintentional re-
start by disconnection it from the power supply. Take
appropriate precautionary measures.
•
Ensure the safety shut-down of the machinery by a
second person at all times.
•
Safeguard mobile machinery parts to prevent injuries.
•
Unauthorized changes on the machinery are at own
risk and discharge the manufacturer from any liability!
The machine does not start
Cause
Interruption of the power sup-
ply, short circuit/short-circuit
to earth in the conduit and/or
motor winding
Trip fuses, circuit breakers and/
or monitoring devices
The machinery starts, the circuit breaker is released, but is
off shortly after start-up
Cause
The thermal trigger on the
circuit breaker is set incorrectly
Impeller/propeller slowed down
due to adhesions, obstructions
and/or solids, increased power
input
The medium is too thick
The machinery runs, but does not convey
Cause
There is no pumped medium
Inlet obstructed
Impeller/propeller blocked/
slowed down
Defective tube/pipe
Pump adhere on flexible ground
Remedy
Specialist to check conduit
and motor and replace, if
appropriate
Connections to be checked by
a specialist and changed, if
appropriate. Fit/set up circuit
breaker and fuses according
to the technical instructions,
reset monitoring devices. Check
impeller/propeller for smooth
operation and clean/restore to
operability, if appropriate
Remedy
Specialist to compare the
setting of the trigger with the
technical instructions and to
correct if appropriate
Switch off machinery, secure
against restart, restore to
operability of the impeller/pro-
peller/clean suction branch
Contact the manufacturer
Remedy
Open inlet for container/gate
valve
Clean inlet, gate valve, suction
piece, suction branch/suction
filter
Switch off machinery, secure
against restart, restore operabi-
lity of impeller/propeller
Replace defective parts
Move the pump on hard ground
The machinery is running, the indicated operating values are
not met
Cause
Inlet obstructed
Gate valve in the pressure pipe
closed
Impeller/propeller blocked/
slowed down
Air in the system
The machinery conveys against
too high pressure
Wear and tear
Defective tube/pipe
Inadmissible content of gas in
the pumped medium
Dual phase operation
Too strong drawdown in opera-
tion mode
The machinery does not run smoothly and makes noises
Cause
The machinery runs in inadmis-
sible operating range
Pump inlet, intake strainer and/
or wheel/propeller congested
Impeller does not run smoothly
Dual phase operation
Wear and tear
Engine mount defective
Machine mounted askew
Further steps for troubleshooting
If the aforementioned points do not help you to eliminate
the fault, contact our customer service. They can help you
as follows:
•
Assistance by telephone or in writing by the custom-
er service
•
Support on site by the customer service
•
Check/repair of the machinery in the factory
Please note that the use of certain services of our custom-
er service might incur further costs! Please contact our
customer service for further information.
Remedy
Clean inlet, gate valve, suction
piece, suction branch/suction
filter
Open gate valve completely
Switch off machinery, secure
against restart, restore operabi-
lity of impeller/propeller
Check pipes, pressure mantle
and/or part of pump, de-aerate,
if appropriate
Check the gate valve in the
pressure pipe, open completely
if appropriate
Replace worn parts
Replace defective parts
Contact the manufacturer
Specialist to check connection
and to correct, if appropriate
Check supply and capacity of
the system, check settings and
function of the level control
Remedy
Check the operating data of
the machinery and correct, if
appropriate and/or adjust the
operating conditions
Clean suction branch, suction
filter and/or impeller/propeller
Switch off machinery, protect
against restart, restore operabi-
lity of the impeller
Specialist to check connection
and to correct, if appropriate
Replace worn parts
Contact the manufacturer
Check assembly and use rubber
compensators
ENGLISH | 27
Publicité
