Maintenance And Servicing - Speck-Pumpen PY-2271 Serie Betriebsanleitung

7

Maintenance and servicing


For pumps/aggregates in potentially explosive areas
( ATEX additional instructions)

A qualified service team provides support for assembly and
repair works. Provide a certificate documenting the safety of
the media to be pumped (DIN safety data sheet or certifi-
cate of conformity when ordering this service)
( Certificate of conformity, page 31).
7.1 Monitoring

Inspection intervals depend on the operational strain on the
aggregate.
RISK OF ELECTRIC SHOCK
Risk of death from electric shock!
►
Any electrical works must be carried out by qualified electri-
cians only.
►
Observe the IEC 30364 (DIN VDE 0100) and for potentially
explosive areas the IEC 60079 (DIN VDE 0165) standard.
DANGER
Risk of injuries caused by running aggregate!
►
Do not touch the running aggregate.
►
Do not carry out any works on the running aggregate.
WARNING
Risk of injuries caused by hot pump parts or hot media to
be pumped!
►
Use protective equipment when carrying out any works on
the aggregate.
1. Check at appropriate intervals:
−
power consumption of the drive
−
contamination of the drive
−
contamination of filters (if available)
−
running noise of the rolling bearings (motors)
−
normal operating condition unchanged
2. For trouble-free operation, ensure the following:
−
no dry running
−
tightness of the aggregate
−
no cavitation
−
open gate valve at the suction side (if available)
−
free and clean filters (if available)
−
no unusual running noise or vibrations
−
no impermissible leaks at the shaft sealing
3. Check shaft sealing:
Mechanical seal
−
In case of leaks: Have the mechanical seal replaced by
service staff or the manufacturer.
05/2011
7.2 Disassembly
Risk of injuries caused by running aggregate!
►
►
►
Risk of death from electric shock!
►
►
Risk of injuries caused by hot pump parts or hot media to
be pumped!
►
►
►
7.2.1
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1.
2.
3.
4.
5.
6.
7.
8.
1096.0841 | PY-2271/2/3, QY-1042, QY-2052 Series
DANGER
Do not touch the running aggregate.
Do not carry out any works on the running aggregate.
Prior to carrying out any assembly or maintenance works,
de-energize the motor and protect it against restart.
RISK OF ELECTRIC SHOCK
Any electrical works must be carried out by qualified electri-
cians only.
Observe the IEC 30364 (DIN VDE 0100) and for potentially
explosive areas the IEC 60079 (DIN VDE 0165) standard.
WARNING
Use protective equipment when carrying out any works on
the aggregate.
Make sure the aggregate is depressurized.
Drain the aggregate. Reliably collect media to be pumped
and dispose of in an environmentally-friendly way.
Return to manufacturer
Aggregate shut down
Aggregate depressurized
Aggregate completely drained
Electrical connections isolated and motor secured against
re-start
Connecting pipes removed
Manometer lines, manometer and fixtures removed
Disassemble the media pipes
Isolate the electrical connections
Loosen fixing screws
Lift the aggregate out of the system (Transport, page 10)
Drain the aggregate
Decontaminate the aggregate (if required)
Attach transport and sealing covers
Send a certificate of conformity to the manufacturer.
If required, request a certificate of conformity from the
manufacturer. ( Certificate of conformity, page 31).
Operating Instructions
15