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▶ Implement the following measures when taking the
pump/aggregate out of operation:
Aggregate is
Measure
shut down while
▶
remaining ready
for operation
shut down for a
longer period of
▶
time
▶
drained
▶
disassembled
stored
▶
Tab. 9 Measures to be taken when putting the pump out of
operation
Operating
Duration of shut-down (process-
liquid
dependent)
Short
Water
▶
Drain
aggregate
and
separator.
Other
media
Tab. 10 Measures depending on the behaviour of the
operating liquid
6.5 Re-commissioning
Shut-down periods > 1 year:
1. Prepare commissioning (→ Preparations for
commissioning, page 17).
2. Perform commissioning procedures (→ Commissioning,
page 17).
3. Monitor the aggregate following commissioning
(→ Monitoring, page 20).
Shortly operate (approx. 5
minutes) the aggregate at
intervals of at least one month
but not exceeding 3 months
(→ Commissioning, page 17).
Implement measures in
accordance with the condition
of the operating liquid (→ Tab.
10 Measures depending on
the behaviour of the operating
liquid)
Close all fi ttings.
Disconnect the motor from
the power supply and secure it
against unauthorized switch-on.
Observe the measures to be
implemented for storage
(→ Storage, page 11).
Long
▶
Drain aggregate and
separator.
▶
Treat aggregate with
a preserving agent (→
Preservation, page 12).
▶
Drain aggregate and
separator.
▶
Treat aggregate with
a preserving agent (→
Preservation, page 12).
6.6 Operating stand-by aggregate
✓ Stand-by aggregate fi lled
Operate the stand-by aggregate at least once per week.
7 Maintenance and servicing
For aggregates in potentially explosive areas (→ ATEX
additional instructions)
A qualifi ed service team provides support for assembly
and repair works. Provide a certifi cate documenting the
safety of the media to be pumped (DIN safety data sheet
or certifi cate of conformity) when ordering this service
(→ Certifi cate of conformity, page 39).
7.1 Monitoring
Inspection intervals depend on the operational strain
on the aggregate.
R I S K O F E L E C T R I C S H O C K
Risk of death from electric shock!
▶ Any electrical works must be carried out by qualifi ed
electricians only.
▶ Observe the IEC 30364 (DIN VDE 0100) and for
potentially explosive areas the IEC 60079 (DIN VDE
0165) standard.
Risk of injuries caused by vacuum and harmful media to
be pumped and operating liquid!
▶ Use protective equipment when carrying out any works
on the aggregate.
1. Check at appropriate intervals:
− deposits on aggregate and separator (if available)
− compliance with the operating liquid fl ow rate
− compliance with the operating liquid temperature
− compliance with the max. permissible compression
pressure
− compliance with the limit values applicable to the
delivery of liquids
− power consumption of the drive
− contamination of the drive
− contamination of fi lters (if available)
− running noise of the rolling bearings (motors)
− normal operating conditions unchanged
2. For trouble-free operation, ensure the following:
− no dry running
− tightness
− no cavitation
− open gate valves at the suction side
20
255548 Rev.1
WA R N I N G
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