EN 2520-A
Installation and Operating Instructions
XFP-PE7 | AFLX-PE7 | VUPX-PE7
24
7 Maintenance
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Before commencing any maintenance work the pump should be completely disconnected from the
mains by a qualified person and care should be taken that it cannot be inadvertently switched back on.
General maintenance hints
NOTE
The maintenance hints given here are not designed for “do-it-yourself” repairs as
special technical knowledge is required.
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Repair work on explosion-proof motors may only be carried out in approved workshops by approved
personnel using original parts supplied by the manufacturer. Otherwise the Ex approvals no longer
apply.
Sulzer submersible pumps are reliable quality products each being subjected to careful final inspection.
Lubricated-for-life ball bearings together with monitoring devices ensure optimum pump reliability provided that
the pump has been connected and operated in accordance with the operating instructions.
Should, nevertheless, a malfunction occur, do not improvise but ask your Sulzer customer service department
for assistance.
This applies particularly if the pump is continually switched off by the current overload in the control panel, by
the thermal sensors/limiters of the thermo-control system or by the seal monitoring system (DI).
ATTENTION
The lifting tools such as chains and shackles should be visually checked in regular
intervals (approx. every 3-month) for wear and corrosion. These parts should be
replaced if required!
The Sulzer service organisation would be pleased to advise you on any applications you may have and to assist you
in solving your pumping problems.
NOTE
The Sulzer warranty conditions are only valid provided that any repair work has been
carried out in Sulzer approved workshops and where original ABS spare parts have
been used.
NOTE
In the case of repair work, „Table 1“ from IEC60079-1 may not be applied. In this case
please contact Sulzer after sales service!
Maintenance hints if the submersible pump is out of use for a considerable period
NOTE
If the pumps have remained idle for more than 12 months then we recommend that
you ask Sulzer or an approved distributor for advice.
Before installation:
The moisture protection covers on the cables should be only removed immediately before actual installation of
the pump. After the removal of the transport securing devices and before connecting up the pump electrically
the motor shaft should be rotated a number of times by turning the impeller or propeller by hand.
After installation:
If, after installation of the submersible pump, it remains out of use for prolonged periods (for example in storm
water holding tanks) then we recommend that the pump be run for a maximum of 1 minute every 3 months in
order to check both its functioning and availability.
