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riicWARDS
A419-00-880 Issue K
7
Storage and disposal
WARNING
Lockoutltagout process delivery and the electrical and nitrogen purge supplies to the pump before
the pump is disconnected from the system.
WARNING
Inlet and exhaust temperatures can exceed 65
•c
in a fault
condition.
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.
It is recommended that when dealing with a pump which may have seized the use of
gloves,
eye protection and
a paper face mask.
7.1
Storage
When the pump is disconnected from the vacuum
system,
avoid contact
with,
or inhalation of any gases or
particulates that may still be present in the pump.
Store the pump as follows:
1. Ensure that the
EPX
has been shut down as described in
Section
5,
then disconnect the pump from the electrical
supply.
2.
Allow the pump to cool for approximately 30 minutes before disconnecting the water to t he
pump. Drain
the
water from the cooling circuit. Place a suitable container under the water outlet connector connection
(Figure
2,
item
9)
and connect a suitable connector along with a short length of hose for a drain. Fit an airline
(maximum pressure 100
psi)
to a second spare connector and connect it to t he pump water inlet connector
connection
(Figure
2,
item 4).
Blow
the water out of the cooling circuit then remove the drai
n
fittings
.
3. Disconnect the pump inlet
(Figure
2,
item
1)
and pump exhaust
(Figure
2,
item
8)
from the
system.
4. Fit blanking caps to the pump inlet
(Figure
2,
item
1)
and pump exhaust
(Figure
2,
item
8).
5. Store the pump
in
clean dry conditions until required.
6.
When required for
use,
prepare and install the pump as described in
Section
3
of this manual.
©
Edwards Limited
2017.
All rights
reserved.
Page 63
Edwards
and the
Edwards
logo are trademarks of
Edwards
Limited.
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