Raymarine REALVISION 3D RV-3 Series Installation Instructions Manual page 38

4. Use the tool to gently lever the split ring over the moulding on the connector until it snaps into
position approximately 0.5 cm further back towards the cable-end of the connector.
You can now remove the tool. The split-ring stays in position on the connector, but rotates freely.
5. Slide the O-ring (arrowed) over the end of the connector, and ensure that it is seated squarely
against the connector moulding, adjacent to the split-ring.
6. Slide the locking collar towards the plug-end of the connector, rotating the collar as necessary
to ensure that the lugs on the locking collar (labelled 'D' in the illustration) pass through the
channels (labelled 'E') in the split-ring.
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