6996 0223 96 Issue A
© Edwards Limited 2016. All rights reserved. Page 35
Edwards and the Edwards logo are trademarks of Edwards Limited.
Preventive maintenance schedule
The following checks should be carried out to ensure safe operation and long service life.
This is a guide only and may change due the harshness of the process.
Check the oil level and fill the gearbox with the
oil, if necessary.
Remove the air filter elements and inspect.
Replace damaged or heavily contaminated
elements.
Check for possible air and oil leakages
Inspect the pipe lines and connections
Replace the air filter elements
Check pressure and temperature readings
Check operation of cooling fans of converter and
clean heat sink
Check and clean cooling fan assembly
Replace lip seal assembly
Change spring inlet valve
Consult Edwards for the internal cleaning
guidelines.
(1) Or after 4 years whichever comes first.
(2) Only use synthetic oil.
* In medium and harsh applications, an optional 500 hrs oil sample is recommended.
* For overpressure pump, oil change intervals are different.
CAUTION
Any leakage should be attended immediately. Damaged hoses or flexible joints must be replaced.
CAUTION
We recommend to monitor the oil condition through the sight glass and to change the oil when it becomes
discolored. Not changing oil in time may result in failure of the pump.
Note: The bearings of the motor are greased for life:
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