Compac CNG Service Manual page 88

Dispenser Fittings
Connecting Compression Tube Fittings
Compac Industries Ltd.
1. Ensure the end of the tube is square, not deformed, clean and free from burrs
inside and out.
2. Remove the nut from the fitting and ensure the two ferrules are present and
correctly orientated.
3. Replace the nut and insert the tube ensuring it is located hard up against the
internal shoulder of the fitting
4. Pre-swage the tube by tightening the nut by hand and then a further 1 1/4" turns
5. Disassemble the fitting and inspect the pre-swaging. The ferrules should square
and unable to be removed from the tube
6. Reassemble the fitting, tightening it by hand and then a further 1/4" turns with the
appropriate spanner.
Correctly made tube should not need to be sprung into position.
Page 88
Installation Diagrams
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