Safety; Maintenance Plan - Edwards EPX HiVac Series Instruction Manual

A419-00-880 Issue F
6.1

Safety

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.
Do not touch or inhale the thermal breakdown products of fluorinated materials which may be
present if the EPX pump has overheated to 260
are very dangerous. The pump may have overheated if it was misused, if it malfunctioned, or if it
was in a fire. Edwards Material Safety Data Sheets for the fluorinated materials used in the EPX
pump are available on request: contact your supplier or Edwards. MSDS: Mechanical Pump Oil -
Fomblin 6/6 Series P120-01-015, O-rings - Viton P120-04-015.
In the event of a pump seizure, dust is generated as a result of contact between the rotating and static surfaces.
This dust may contain aluminium sulphate in low concentrations and may be accompanied by a slightly
sulphurous smell.
It is recommended that when dealing with a pump which may have seized you wear gloves, eye protection and
a paper face mask.
Allow the EPX pump to cool to ambient temperature before you start maintenance work.
Wipe up any spilt water during maintenance so as to avoid possible risk of slips.
Isolate the EPX pump and other components in the process system from the electrical supply so that they
cannot be operated accidentally.
Lockout/Tagout the nitrogen supply and water supply.
Do not reuse O-rings.
Protect sealing-faces from damage.
If you need to remove the pump, follow the instructions given in
If you disconnect the inlet from the process system, leak-test the system after maintenance work is
complete and seal any leaks found to prevent leakage of dangerous substances out of the system and leakage
of air into the system: refer to
The inverter drive contains capacitors which store electrical energy after the pump has been shut down.
Wait at least four minutes after the pump has been shut down before you start any work on the electrical
system of the EPX pump.
The pump covers should not be removed as the pump contains sensitive electronic components. None of the
components in the pump are user serviceable.
6.2

Maintenance plan

The plan shown in Table 16
operation. Instructions for each operation are given in the section shown.
Page 56
WARNING
WARNING
CAUTION
Section 3.7.
details the maintenance operations we recommend to maintain the EPX pump in normal
Edwards and the Edwards logo are trademarks of Edwards Limited.
º º
C (500 F) and above. These breakdown products
Section 7.1.
© Edwards Limited 2007. All rights reserved.