BOC Edwards EO2K, Инструкция по эксплуатации

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EO2K, EO4K and EO6K Diffusion Pumps
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Issue G 37 Aug 06
5 MAINTENANCE
5.1 Safety
• A suitably trained and supervised technician must maintain the EO pump.
• Ensure that the maintenance technician is familiar with the safety procedures which relate to the
pump fluid and the products pumped. Wear the appropriate safety-clothing when you come into
contact with contaminated components. Dismantle and clean contaminated components inside a
fume-cupboard.
• Isolate the EO pump from the electrical supply and your vacuum system before you start
maintenance work.
• Allow the EO pump to cool fully before you touch any part of the pump or attempt to move it.
(Allow at least 30 minutes for EO2K and EO4K pumps; allow at least 45 minutes for EO6K pumps.)
Only open the pump to atmospheric pressure when it is cool.
• Always allow a water-cooled EO pump to fully cool down (see above) before you turn off the
cooling-water supply.
• On water-cooled pumps, if the pump has overheated (for example, if the cooling-water supply
failed, or if the flow through the cooling-coil was impeded), water may boil in the cooling-coil. All
the pump to fully cool down (see above) before you disconnect the cooling-water supply or return
connections. If you do not, hot water or steam will be ejected from the connections.
• Do not remove the fluid drain plug to vent the EO pump while the pump is operating or under
vacuum.
• If necessary, get someone to help you move the pump (see Section 3.3.3), or use suitable lifting
equipment when you move the pump. (Refer to Section 2.3 for the mass of the EO pump).
• Do not touch or inhale the thermal breakdown products of fluorinated materials which may be
present if the EO pump has been overheated to 315
o
C and above. These breakdown products are
very dangerous. Fluorinated materials in the pump may include seals and ‘O’ rings. The pump may
have overheated if it was misused, if it malfunctioned or if it was in a fire. BOC Edwards Material
Safety Data Sheets for fluorinated materials used in the pump are available on request; contact your
supplier or BOC Edwards.
• Do not touch or inhale the thermal breakdown products of the pump fluid if the EO pump has been
overheated.
• Do not use abrasive or reactive chemical substances to clean the EO pump.
• Do not use solvents to clean ‘O’ rings.
• If you need to work under the pump, wear suitable protective clothing, eye protection and
breathing apparatus.
• Check that all the required spare parts are available and of the correct type before you start work.
WARNING
Obey the safety instructions given below and take note of appropriate precautions. If you
do not, you can cause injury to people and damage to equipment.