A533-23-880 Issue C
Page 92
© Edwards Limited 2009. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
maintenance
Table 18 - Fit and re-tighten a tube fitting
5. Remove the NW40 clamp and trapped ‘O’ ring which secures the elbow to the exhaust silencer (19). Dispose of
the trapped ‘O’ ring.
6. Inspect the exhaust silencer (19). If you do not need to remove the silencer from the pump to clean it, use a
suitable tool (for example a long bottle brush) and a cleaning solution suitable for the deposits to clean the
exhaust silencer outlet and continue at Step 7. If you need to remove the exhaust silencer from the pump to
clean it, refer to Section 6.6.1.
7. Empty all loose deposits from the elbow, then use a suitable tool (for example a long brush) and a cleaning
solution suitable for the deposits to clean the elbow, if necessary.
8. Fit a new NW40 trapped ‘O’ ring and the NW40 clamp to secure the elbow to the exhaust silencer.
9. If the check valve needs to be cleaned, refer to Section 6.6.2
1. Tube fitting
2. Front (tapered) ferrule
3. Rear ferrule
4. Nut
5. Tube
