Troubleshooting - ProMinent TZ Operating Instructions Manual

13

Troubleshooting

Safety notes
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!
Fire danger
Only with combustible media: These may start to burn when
combined with oxygen.
– When filling and draining the liquid end, the feed chem‐
ical must not come into contact with oxygen.
WARNING!
Hot surface
In event the power end motor is loaded excessively, its sur‐
face may become very hot.
– Avoid contact.
– If necessary, mount a guard plate.
WARNING!
Danger of an electric shock
Personnel working on electrical parts can be electrocuted if
all electrical lines carrying current have not been discon‐
nected.
– Disconnect the supply cable before working on the motor
and prevent it from being reconnected accidentally.
– Any separately driven fans, servo motors, speed control‐
lers or diaphragm rupture sensors fitted should also be
disconnected.
– Check that the supply cables are de-energised.
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.
Troubleshooting
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