ProMinent Hydro/4 Operating Instructions Manual page 11

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!
Warning of feed chemical spraying around
An unsuitable feed chemical can damage the parts of the
pump that come into contact with the chemical.
– Take into account the resistance of the wetted materials
when selecting the feed chemical - see the ProMinent
product catalogue or visit www.prominent.com.
WARNING!
Danger of injury to personnel and material damage
The pump must only be opened at those points required to
be opened by these operating instructions.
It may only be opened in other positions upon receipt of
written authorisation from the ProMinent head office, Heidel‐
berg.
WARNING!
Adjusted pressure switches fail
– The switching point of the 42 V pressure switch must not
be changed.
– The ATEX pressure switch must not be reprogrammed.
It could result in overheating of the pump.
CAUTION!
Danger of personnel injury and material damage
The use of untested third party parts can result in personnel
injuries and material damage.
– Only fit parts to metering pumps, which have been
tested and recommended by ProMinent.
CAUTION!
Danger from incorrectly operated or inadequately maintained
pumps
Danger can arise from a poorly accessible pump due to
incorrect operation and poor maintenance.
– Ensure that the pump is accessible at all times.
– Adhere to the maintenance intervals.
Safety chapter
11