D420 repair manual-modified

[buddhasummer]

If you read the manual couv attached all will become clear.

 

[lexvil]

Can you be specific please? Should the lever adjustment be done under pressure or not? What about the clearance between the lever and diaphragm?

Specifics are in the manual but yes the lever can be adjusted under pressure and the clearance should be 1mm or less, .25mm being abound as close as you want to get. You should be able to feel slight movement before the diaphragm contacts the lever, best checked with the purge lever removed so you can feel it directly.

 

[buddhasummer]

In a nut shell, yes, under pressure and gap between diaphragm and lever .25-.5mm

 

[Couv]

If you read the manual couv attached all will become clear.

Note: The latest version (11) is now attached to post #1 of this thread.

 

[rsingler]

Just returned from my latest Scubapro Technician recert seminar, and without disclosing more than I'm supposed to regarding SP's proprietary tech info, I'm happy to report some news. If you insist on taking your reg apart instead of sending it to your LDS , Revision B of the service manual now requires a 0.5mm gap between the diaphragm disc and the lever, and the adjustment should be done under pressure.

They've decided that that amount of lever drop is safe.