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9
Maintenance / Repair
9.1
General Instructions
The operator must ensure that all maintenance, service and repair work on the pump is
carried out exclusively by authorised and specially trained persons. It must be established
beyond doubt that the person has studied the operator's manual in detail.
We recommend the creation and adherence to of a maintenance schedule. That will
enable you to avoid expensive repairs and have a reliable and trouble-free pump
operation.
Only original spare parts must be used for repairs. This is particularly important for the
mechanical seal.
If work has to be carried out on the motor the instructions in the manual from the relevant
motor manufacturer must be observed.
Mortal danger!
In order to prevent electric shocks, work on the terminal box and the machine
controller must never be carried out before the electrical connections have
been isolated or disconnected.
Attention: Mortal danger!
The centrifugal pump must be safeguarded against unintentional switching on
(be disconnected) if checking or maintenance work is to be undertaken.
9.2
Maintenance / Service
Use the following information to create a maintenance schedule. These are
recommendations of minimum requirements that must be adjusted to local conditions of
use of the pump and may need amending accordingly.
Continuous checks:
•
Centrifugal pump delivery data (pressure, amount)
•
Power take-up
Daily checks:
•
Pump running is quiet and vibration free
•
Bearing temperature
•
Leakage at the mechanical seal
Check / replace every 6 months
•
Screws are tight
Information:
i
An inspection of the mechanical seal should be carried out within the scope of
a system check after 8000 hours of operation. If the mechanical seal is
removed during a system check, then it must be replaced by a new one.
128
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
OPERATOR'S MANUAL
Pumpe Typ WK / WKN
Version: 27220 - A
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