A344-02-880 Issue J
Page 26 © Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Maintenance
5.2 Maintenance plan
The plan shown in Table 4 details the routine maintenance operations necessary to maintain your pump in normal
use. Instructions for each operation are given in the section shown.
More frequent maintenance may be required if you use your pump with gas-ballast or to pump corrosive or abrasive
gases and vapours. If necessary, adjust the maintenance plan according to your experience.
When you maintain the pump, use Edwards spares and maintenance kits; these contain all of the components
necessary to complete maintenance operations successfully. The Item Numbers of the spares and kits are given in
Section 7.
Examine the condition of any external accessories, filters or traps (if fitted). Refer to the instructions supplied with
these accessories for maintenance procedures.
Table 4 - M aint e nanc e plan
Operation Frequency Refer to Section
Check the oil-level Weekly 5.3
Replace the oil 6 months 5.4
Replace the fine oil-filter Every 3000 hours 5.5
Replace the gas-ballast filter Every 3000 hours 5.6
Inspect and clean the inlet-filter Yearly 5.7
Clean the oil-level sight-glass Yearly 5.8
Clean the motor fan-cover Yearly 5.9
Clean and overhaul the pump Yearly 5.10
Te s t t h e moto r c o n d ition Ye arly 5.11
Fit new blades 3 years 5.12
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