S600 Adjustment Knob O Rings

[Hessian]

Hi,

I've been working on a scubapro s600 with the the older adjustment knob setup ("Config B" on the Service Manual). Does anyone have the schematic for that variation or know the correct o-ring sizes for reassembling?

I'm specifically looking for o-ring sizes for this step:

 

[Tanks A Lot]

The knob assembly was changed in November 2002 and only a couple of earlier iterations came with the knob you are working on. It was widely rolled out in August 2003. It was deservedly changed, as the old adjustment knob was a pain to work on, unless one bought the very special tool (43.300.227) to adjust it while pressurized.

The O-rings in question are:

• 01.050.138 - BS1806 011 (1.78 x 7.65 | 90 Shore | NBR)
• 01.050.360 - Parker 5-179 (1.02 x 6.07 | 70 Shore | NBR) - A close but not perfect match will be a metric O-ring according to ISO3601 1.00 x 6.00
• 01.050.145 - BS1806 012 (1.78 x 9.25 | 85 Shore | EPDM) - You need two of this
• 01.050.147 - BS1806 013 (1.78 x 9.25 | 85 Shore | EPDM)

Bonus points for the new knob assembly for not coming with silly O-ring sizes like the 01.050.360. Parker-series O-rings can be hard to come by aftermarket unless one is willing to buy a few thousand, which surprisingly isn't all that expensive. Still, upgrading the knob may be the prudent thing in the long run.

 

[Hessian]

Thanks for the details! I'll need to wait for Buddhasummer's next order as I don't see the assembly available for sale anywhere.

In the meantime, this is just what I needed

 

[lexvil]

Thanks for the details! I'll need to wait for Buddhasummer's next order as I don't see the assembly available for sale anywhere.

In the meantime, this is just what I needed

I have a replacement knob assembly.