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12.2
Disposal
CAUTION!
Warning of feed chemical spraying around
Feed chemical can spray out of the hydraulic components if
they are manipulated or opened due to pressure in the liquid
end and adjacent parts of the system.
–
Disconnect the pump from the mains power supply and
ensure that it cannot be switched on again by unauthor‐
ised persons.
–
Depressurise the system before commencing any work
on hydraulic parts.
CAUTION!
Danger of damage to the device
The device can be damaged by incorrect and improper
storage or transportation.
–
Take into account the information in the "Storage, Trans‐
port and Unpacking" chapter if the system is decommis‐
sioned for a temporary period.
Personnel:
n
1.
Disconnect the pump from the mains power supply.
2.
Depressurise and bleed the hydraulic system around the pump.
3.
Flush the liquid end with a suitable medium - Observe the safety
data sheet! Flush the dosing head thoroughly when using haz‐
ardous feed chemicals!
4.
Drain the hydraulic oil - see chapter "Maintenance".
5.
Thoroughly clean the liquid end and the housing of chemicals and
dirt.
6.
Possible additional work - see chapter "Storage, Transport and
Unpacking".
Personnel:
n
WARNING!
Danger due to spring tension
There is a spring under high tension between the diaphragm
and the diaphragm mounting plate.
–
HP4 only: Only dismantle the combination diaphragm /
diaphragm mounting plate using the mounting aid - see
the "Overhaul" chapter - "Metering diaphragm replace‐
ment".
–
Wear safety glasses.
Decommissioning and Disposal
Technical personnel
Technical personnel
57
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