Sealing Fisher Connectors

Monkey

Missing would manifest is self as leaking the first hour in the water .... so I agree with you damaged is more like it.

but it does not change the fact that I don't see it..... is it recessed?

kiwi_diver

Refer to Stephanes post and take a good gander at the top left assembly in the pic he posted. That is pretty much your VR3 Fischer receptacle. The O-ring (Item 4) is indeed recessed and probably 1/3 or less will be visible proud of the inner surface of the receptacle and quite a way down towards the bottom. You may need an eye-glass and a small light to see it clearly.

Ray.

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Ray.
==
Latitude 36 South, where the deeper you dive, the warmer it gets!
==

vidodivr

The O-ring and the fisher connectors have been covered in detail many times over, do a search and you will find out more about the "hidden" o-ring.

__________________
Have a good one,
Rob LaLonde
CK #087
Narked@90 frame
URM

hrdubwd

It is.




BWD

bgpartri

Look here:
Shearwater Research Inc. - Computers for Diving

Click on the picture to get a full screen view.

Bruce

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http://www.rebreather.ca

Good judgement comes from experience, and experience comes from bad judgement.

Mdemon

Pack it with O2 grease. I found that grease keeps everything uncorroded and also gives the water nowhere to go.

For what it's worth, I think the pic Stephane posted is excellent and a mod all users should make. If you want to see what happens to a VR£ cable unsealed then look here.

Monkey, do check the cabling if you're getting dodgy readings because that's exactly what the symptoms were for my cable. Don't forget that corrosion can creep up from the molex end (just like on an Inspo) because of the crimp exposing the inner conductor. It's a crap connection method. If I were to go back to using VR£ for 4th cell, I'd undo the gland, drill out the potting and replace it with a sealed SMB connector.

HTH

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www.southwestmafia.com

It's as easy as abc;

a) "Carry adequate bailout"

b) "If in doubt, bail out"

c) "Always know your PO2"

If you find that hard, stick to crochet.

"Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"

sunkmail

I had a similar thing happen to me during my Training... After sending the unit back to Delta-P, here is what I was told:

1) They got a bad batch of Fischer connectors
2) They didn't know the batch was bad until they started getting returns
3) They haave been in contact with the Fischer people and have replaced their stock
4) My VR3 and URM have been repaired (at no cost) using a different batch of connectors.

I haven't had the chance to dive my unit yet with the new parts, but the connectors look shiney and new

If your unit is fairly new (as all URM's probably are) you may want to look into getting the parts replaced by the factor. And it doesn't hurt to do some/all of the sealing suggestions either :P