Troubleshooting - ProMinent Hydro/4 HP4a Operating Instructions Manual

Troubleshooting

11 Troubleshooting
Safety information
68
WARNING!
ATEX pumps in areas at risk from explosion
– Generally ensure proper functioning (no leaks,
unusual noises, high temperatures, unusual smell,
vibrations, etc.) especially of the power end/drive
and the bearings.
– Do not allow the pump to heat up because of a lack
of oil!
With lubricated metering pumps, regularly check for
the presence of lubricant, for example by checking
the liquid level, visual leak control etc. If oil is
leaking, examine the leakage point immediately and
eliminate the cause.
– When cleaning plastic components, ensure that no
electrostatic charges are generated by excessive
friction. - see warning label.
– Replace wear parts, such as bearings, when there is
an identifiable incidence of unacceptable wear. (The
nominal service life cannot be calculated with lubri‐
cated bearings.)
– Only use genuine spare parts as replacements.
– Carry out inspections and repair in in compliance
with DIN EN IEC 60079-17 and ensure that they are
only performed by "experienced personnel with the
requisite knowledge".
– Make sure that a "recognised competent person"
checks the electrical installation and in particular the
intrinsically safe electric circuits.
–
WARNING!
ATEX pumps in areas at risk from explosion
Static electricity can cause ignition sparks.
– Consider potential equalisation before you approach
any pump equipment that could be at a different
electrical potential (such as pipes or tools)
WARNING!
Fire hazard with flammable media
Only with flammable media: They can be ignited by
oxygen.
– The pump may not work if there is a mixture of feed
chemical with oxygen in the liquid end. A specialist
may need to take appropriate actions (using inert
gas, ...).