Maintenance - ProMinent Makro TZ Operating Instructions Manual

Maintenance

9 Maintenance
Safety information
42
WARNING!
ATEX pumps in areas at risk from explosion
– Generally check that the system is working properly,
particularly the power end and bearings, by regularly
monitoring it (for leaks, noises, temperatures,
smell....).
– Do not allow the pump to run hot due to 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.
– Check the correct operation of the relief valve down‐
stream of the pump. In premises at risk from explo‐
sion, the relief valve should prevent the gear from
becoming overloaded and becoming hot.
– Observe the enclosed operating instructions for the
Ex motor.
– Check / replace worn gear ring etc. of the clutch.
– When cleaning plastic components, ensure that no
electrostatic charges are generated by excessive
friction.
– Prevent serious deposits of dust on the motor.
– Consider potential equalisation before you approach
any pump equipment that could be at a different
electrical potential (such as pipes or tools).
– Only with stroke control motor: Wait 3 minutes after
switching off before opening the housing.
– Have wear parts, such as bearings, replaced by
ProMinent Service when there is an identifiable inci‐
dence of unacceptable wear.
– Appropriate diagnostic equipment for bearing
damage is recommended for the premature detec‐
tion of bearing damage.
– Check whether the potential equalisation lines are
all sitting correctly with clean contacts. Use the equi‐
potential bonding drawings as an aid – see
Appendix.
– Check whether the earth lines are all sitting correctly
with clean contacts. Use the equipotential bonding
drawings as an aid – see Appendix.
– Only use genuine spare parts as replacements.
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!
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.