A344-02-880 Issue J
Page 28 © Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Maintenance
5.5 Replace the fine oil-filter
Figure 9 - Fine oil-filter and gas-ballast bearing-plate locations
You must replace the fine oil-filter every time you change the oil in the pump. See Figure 9.
1. Isolate the pump from your electrical supply.
2. Place a suitable container underneath the oil drain scoop (5) below and to the left of the fine oil-filter (1). This
will contain any oil spill from the filter when it is unscrewed. The filter capacity is about 400 ml.
3. Unscrew the filter (direction arrows shown in Figure 9) using a suitable strap-wrench. Clean off any oil-spillage
on pump and filter housing surfaces. Dispose of the filter and any oil-spillage according to local environment
regulations covering industrial waste.
4. Make sure that the filter sealing ring (supplied with the new filter) is seated correctly on the new filter. Screw in
the new filter and tighten
1
/
4
turn using the strap-wrench.
1. Fine oil-filter
2. Gas-ballast bearing-plate assembly
3. Gas-ballast inlets
4. Gas-ballast control
5. Oil drain-scoop
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