Table Of Contents; General Notes; Cleaning Procedures; Seals And O-Rings - Uwatec D420 Service Manual

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Contents
General Notes .............................................................................................................................
Cleaning Procedures ...................................................................................................................
Seals and o-rings ........................................................................................................................
Plastic or rubber components ......................................................................................................
Metallic Components ...................................................................................................................
Tools ............................................................................................................................................
Disassembly Procedure ................................................................................................................
Reassembly Procedure .................................................................................................................
Tuning and Final Testing .............................................................................................................

General Notes

This regulator is designed for use with Enriched Gas (Nitrox) to EAN40. Use only perfectly
cleaned tools in a cleaned environment
Cleaning procedure
Please refer to the "SCUBAPRO CLEANING PROCEDURE" document

Seals and O-Rings

All seals and o-rings shall be perfectly clean.
Check o-ring lands for imperfections or burrs, and clean as needed.
All o-rings, in particular those for dynamic use, must be lubricated, along with any adjacent
moving parts. The approved lubricant is Christolube MCG-111. Previous Technician
Seminars have indicated that Tribolube 71 is also acceptable, though this is not found in
official Scubapro publications.
Note: The lubricant container, as well as tools and brushes used for service must be
perfectly clean, free from dust, hydrocarbons or other particulate matter.

Plastic or rubber components

The components, particularly on sealing surfaces, should be free of deformation or damage.
All threaded components should screw freely and without resistance, leaving no excessive
gap, unless otherwise specified.

Metallic components

Metallic components should not have separated from the regulator or regulator part.
Chrome plating should be smooth without deformation, imperfections or damage.
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