Edwards 9773512584, Instruction Manual

Page: 71 / 180

5. Maintenance
WARNING:
Only personnel specially trained to perform electrical maintenance should attempt
troubleshooting inside the electrical enclosures. These enclosures contain hazardous
voltages and are not operator areas.
WARNING:
Leak test the dry pumping system after 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 for at least four minutes after switching off the electrical supply before touching
any electrical component on the dry pumping system.
5.1 Safety and maintenance frequency
WARNING:
Obey the safety instructions given below and take the appropriate precautions.
Failure to do so can cause injury to people and damage to equipment.
WARNING:
Electrical, purge gas and water supplies are all potentially 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 exhaust and check-valve (if fitted) while the pump is running
since the temperatures of these parts can cause burns. These parts will remain hot
after the pump has stopped.
WARNING:
Personal protective equipment should be checked and used as specified by its
supplier. Hazardous chemicals that have been pumped are located within the pumps
and piping. Use of suitable protective gloves and clothing along with a respirator is
recommended if contact with the substances is anticipated. Particular caution should
be exercised when working with fluorinated materials which may have been exposed
to temperatures greater than 260 °C. Refer to our safety datasheets for the detailed
information.
Page 67
M58800880_H - Maintenance