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Issue
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6.
1
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Safety
WARNING
Obey
the
safety instructions given below and
take note of
appropriate precautions. If
not,
injury
to people and damage to equipment
can
occur.
WARNING
Do not touch or inhale
the
thermal breakdown products of fluorinated materials
which
may be
present
if
the EPX pump has overheated
to
260
•c
(500
•F) and above. These breakdown products
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
the
supplier
or Edwards.
MSDS: Mechanical
Pump
Oil
-
Fomblin 6/6 Series P120-01 -015, 0-rings-
Viton
P120-04-015.
CAUTION
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.
When working
on a pump
which
may have
seized, the
use
of
gloves, eye protection and a paper face mask is
recommended.
•
Allow the
EPX
pump to cool to
ambient
temperature before starting 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 0-rings.
•
Protect sealing-faces
from
damage.
•
If the
pump
needs to be
removed,
follow
the instructions given in
Section 7.1
.
•
If disconnecting
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
Section 3.7.
•
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 starting 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
details
the
maintenance operations we recommend
to
maintain the
EPX
pump in
normal
operation. Instructions
for each
operation
are given
in
the
section shown.
Page 58
©
Edwards Limited 2017. All rights reserved.
Edwards and the Edwards
logo
are trademarks of Edwards
Limited.
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