© Edwards Limited 2012. All rights reserved.
Page 25
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Maintenance
A373-10-880 Issue R
Repeat this step until the oil reservoir is clean.
6. Refit the oil drain-plug, remove the block and reconnect the pump to your vacuum system.
7. Fill a suitable container with clean oil and pour the oil into the filler hole until the oil-level reaches the
MAX level mark on the bezel of the oil sight-glass (12).
8. Allow a few minutes for the oil to drain into the pump. If necessary, add more oil. Refit the oil filler-plug.
5.5
Inspect and clean the inlet-filter
1. Unscrew the inlet adaptor (1) and remove the O-ring (2), circlip (3) and inlet-filter (4).
2. Wash the filter in a suitable cleaning solution. Allow the filter to dry.
3. Refit the inlet-filter (4), circlip (3), O-ring (2) and inlet adaptor (1).
Figure 8 - Remove/replace the inlet filter
1. Inlet adaptor
2. O-ring
3. Circlip
4. Inlet-filter
