Maintenance - ProMinent TZ Operating Instructions Manual

Maintenance

11 Maintenance
Safety notes
32
WARNING!
Warning about personal and material damage
EX pumps only: When operating in EX areas, certain sub‐
jects must be observed.
– The chapter "Important supplements for metering pumps
in EX zones" of the "General Operating Instructions on
ProMinent ® Motor-Driven Metering Pumps and Hydraulic
Accessories" must be observed in all cases.
WARNING!
It is mandatory that you read the safety information and
specifications in the "Storage, Transport and Unpacking"
chapter prior to shipping the pump.
WARNING!
Warning of hazardous or unknown feed chemical
Should a hazardous or unknown feed chemical be used, it
may escape from the hydraulic components when working
on the pump.
– Take appropriate protective measures before working on
the pump (protective eyewear, protective gloves, ...).
Read the safety data sheet on the feed chemical.
– Drain and flush the liquid end before working on the
pump.
WARNING!
Risk of fingers being crushed
Under unfavourable conditions, the stroke axle or displace‐
ment body can cause crushing of the fingers.
– Disconnect the pump from the mains power supply and
ensure that it cannot be switched on again by unauthor‐
ised persons.
WARNING!
Risk of injury from the fan impeller
The fan impeller beneath motor's fan cowling can cause
severe injuries while it is turning.
– The pump must only be connected to the mains voltage
with the fan cowling closed.
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.