Troubleshooting - ProMinent MAKRO TZ Operating Instructions Manual

12

Troubleshooting

Safety notes
WARNING!
EX pumps in areas at risk from explosion
– Generally ensure proper operation (no leaks, unusual
noises, high temperatures, unusual smell ...) especially
with the power end and the bearings.
– Do not allow the pump to heat up because of lack of oil.
If oil is escaping, investigate the leak immediately and
eliminate the cause.
– When cleaning plastic parts, ensure that excessive fric‐
tion does not cause electrical charges - see warning
label.
– Replace wear parts, such as bearings, when there is an
identifiable incidence of unacceptable wear. (The nom‐
inal service life cannot be calculated with lubricated
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 per‐
formed by "experienced personnel with the requisite
knowledge".
WARNING!
Fire hazard with flammable media
Only with combustible media: These may start to burn when
combined with oxygen.
– During filling and draining of the liquid end, an expert
must ensure that feed chemical does not come into con‐
tact 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.
Troubleshooting
47