7. Maintenance
7.1 Saf
ety
WARNING:
Only personnel specially tr
ained to perform electrical maintenance should aempt
troubleshoong inside the electrical enclosures. These enclosures contain hazardous
voltages and are not operator areas.
WARNING:
Leak test the dry pumping system aer maintenance and seal any leaks found to
prevent leakage of dangerous substances out of and leakage of air into the dry
pumping system.
WARNING:
Wait f
or at least four minutes aer switching o the electrical supply before touching
any electrical component on the dry pumping system.
WARNING:
Obey the sa
fety instrucons given below and take the appropriate precauons.
Failure to do so can cause injury to people and damage to equipment.
WARNING:
Electrical, purge gas and water supplies are all potenally hazardous energy sources.
Before carrying out any maintenance the supply of these sources should be locked
and tagged out.
WARNING:
Do not touch the pump e
xhaust and check‐valve (if ed) while the pump is running
since the temperatures of these parts can cause burns. These parts will remain hot
aer the pump has stopped.
WARNING:
P
er
sonal protecve equipment should be checked and used as specied by its
supplier. Hazardous chemicals that have been pumped are located within the pumps
and piping. Use of suitable protecve gloves and clothing along with a respirator is
recommended if contact with the substances is ancipated. Parcular cauon should
be exercised when working with uorinated materials which may have been exposed
to temperatures greater than 260 °C. Refer to our safety datasheets for detailed
informaon.
07/2021 - ©Edwards Limited
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A41870880_A - Maintenance
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