7 Maintenance and repair
CVP High-Pressure Centrifugal Pump
27
7 Maintenance and repair
7.1 General information
We can provide trained customer service
technicians for assembly and repair work.
Please present proof of the conveyed
goods upon request.
(DIN safety data sheet or clearance certifi-
cate)
DANGER
Risk of injury due to running pump!
► Do not touch the running pump.
► Do not perform any work on the running
pump.
WARNING
Risk of poisoning or injury due to hazard-
ous pumping media!
► Use personal protective equipment when
performing work on the pump.
Ensure that the pump runs smoothly and quiet-
ly at all times. Maximum permitted room tem-
perature 40 °C.
The mechanical seal displays only limited or
invisible leakage losses (in vapor form). It re-
quires no maintenance.
The reserve pumps must be activated once
per week in order to ensure operational readi-
ness. To do so, switch the reserve pumps on
and immediately off again. Monitor the function
of the additional connections.
The pump shaft is supported in the suction
casing in a zero-maintenance bearing shell
made from PTFE graphite. The pump shaft
and motor shaft are connected rigidly by
means of a muff coupling.
Ensure that the socket head cap screws of the
coupling shells are tightened at regular inter-
vals. Perform an initial check after 50 operating
hours, and further checks after every 1,000
operating hours.
DANGER
Risk of death from electric shock!
► Only allow work on the electrical systems to
be carried out by a qualified electrician.
► Ensure that the supply of electricity is
switched off and secured against reactiva-
tion when performing all maintenance work.
Summary of Contents for CVP 423
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