Maintenance - Edwards EPX HiVac Series Instruction Manual

6

Maintenance

There are no user serviceable parts within the EPX. There is no requirement to remove the covers
from the pump during normal operation. Removing the covers could cause injury to people or
damage to equipment.
Toxic, flammable and corrosive chemicals may be present within the pump enclosure. Ensure that
the appropriate Personal Protective Equipment (PPE) is worn when carrying out any maintenance
tasks.
Before disconnecting EPX N pumps from the system, purge the pump for 30 minutes, then lockout/
tagout the nitrogen supply.
There are no user serviceable parts within the EPX pump. Metal covers must not be removed from
the pump; to do so may cause damage to the pump and injury to personnel and would invalidate
the declaration of conformity and the warranty. Qualified Edwards service personnel should allow
4 minutes after the isolation of power before removing any covers.
Purge the pump for 1/2 an hour with nitrogen before removing the power.
There are no user serviceable parts in the EPX pump mechanism, electric motor or electrical controls.
Attempting to remove the pump rotor, separate the motor from the pump or remove electrical covers can
cause injury to people or damage to equipment.
It is recommended that all maintenance and service operations are carried out by qualified Edwards Service
Personnel, excepting:
Connection and inspection of pipelines and connections to foreline and exhaust. Routine external cleaning.
Connection and disconnection to electrical power. Connection and disconnection of electrical signals.
© Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
WARNING
WARNING
WARNING
WARNING
A419-00-880 Issue F
Page 55