Operating instructions
4.7 Shutting down
•
Close slide valve in discharge pipe. This is not necessary if there is a spring-loaded non-return
valve.
•
Switch of motor (make sure it runs down quietly).
•
Close slide valve on suction side.
•
Close auxiliary systems. Do not shut down cooling system until pump has cooled down.
•
If there is any risk of freezing, empty pump, cooling areas and pipes completely.
If the pump also remains under operating conditions (pressure and temperature) when stationary:
leave all sealing, flushing and cooling systems switched on.
The shaft sealing must remain sealed if there is a risk of air being sucked in (in the event of supply
from vacuum systems or parallel operation with shared suction pipe).
4.8 Dismantling
The operator's or manufacturer's fitters should be informed as to the nature of the
liquid handled. In the case of pumps handling dangerous liquids, the liquid
handled should be disposed of by environmentally acceptable means before the
pump is dismantled.
•
Before starting to disassemble the pump unit make sure that it cannot be switched on again.
•
The pump casing must be depressurised and empty.
•
All valves in the suction, intake and discharge pipes must be closed.
•
All components must have cooled down to ambient temperature.
5. Maintenance, Servicing
Work should only be carried out on the pump or pump unit when it is not in
operation. You must observe Point 1.4 „Safety instructions“.
Maintenance and servicing work must only be carried out by trained, experienced
staff who are familiar with the contents of these Operating Instructions, or by the
Manufacturer's own service staff. The work carried out must be duly entered in the
„Log Book“ (see Point 11) and confirmed by being signed.
Stuffing boxes
Stuffing boxes require constant maintenance (see also Point 4.5, „Starting up for the first time“). If
the leakage rate can no longer be set correctly, the packing is worn out and must be replaced in
good time (increased wear on shaft sleeve and/or shaft).
Because of the risk of accidents, addition of packing to pumps during operation or
at operating pressure or temperature is strictly forbidden.
Please
note
Pa 100/3-en
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