Maintenance; Safety And Maintenance Frequency - Edwards iXH100 Instruction Manual

5

Maintenance

Only personnel specially trained to perform electrical maintenance should attempt
troubleshooting inside electrical enclosures. These enclosures contain hazardous voltages and are
not operator areas.
Leak test the system after maintenance and seal any leaks found to prevent leakage of dangerous
substances out of the system and leakage of air into the system.
5.1

Safety and maintenance frequency

Obey the safety instructions given below and take the appropriate precautions. If you do not, you
can cause injury to people and damage to equipment.
Electrical, nitrogen 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.
Do not touch the pump exhaust and check-valve (if fitted) whilst the pump is running since the
temperatures of these parts can cause burns. These parts will remain hot after the pump has
stopped.
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 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 Edwards Material
Safety Data Sheets for detailed information.
Ensure that the maintenance technician is familiar with the safety procedures which relate to the products

pumped.
Allow the pumps to cool to a safe temperature before you fit lifting eye bolts or start maintenance work.

Vent and purge the dry pumping system with nitrogen before you start any maintenance work.

Isolate the dry pumping system and other components in the process system from the electrical supply so

that they cannot be operated accidentally. Note that the emergency stop switch on the dry pumping system
is not an electrical isolator, unless a disconnect box accessory is installed.
© Edwards Limited 2012. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
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M561-00-880 Issue C
Page 45