Apeks DS4 coming undone

[Kristen]

I was trying to streamline my rig last night and when screwing in a DIN DS4 into the cylinder instead of screwing into the cylinder it seemed to unscrew the thread (that goes into the cylinder) from the rest of the first stage. I imagine that this is how you change the first stage from A-clamp to DIN etc. Anyway, I simply screwed the whole unit tight together and it seems fine under pressure.

Just wanted to know if this had happened to anyone else/was something I should be concerned about/get checked out (I assume not but you never know....)

Thanks in advance

[Steve S]

Hi Kirsten,

now't to worry about it has now become part of my pre assembly of the twins to check the tightness of the din insert.

Safe diving,
Steve

[londonsean69]

OK, not wanting to worry you too much, but this happenned to me on Sunday - YD Post here

It is now going to be part of my routine also to check they are nice and tight.

Cheers

[Lou]

This happened to mine and when I tightened it back up I sliced through an internal o-ring. Luckily a fellow YD-er came to my rescue and got the lovely chap in the shop at NDC to replace it, but it is part of teh service kit and not an o-ring you can just buy in your LDS so be careful/.

[Conor]

My LDs is nice enough to return all the components removed after servicing, which means that all the related o-rings etc are now in my save a dive spares kit

[Helen F H]

Have had it happen to me too. Just be careful as once it came undone, it seemed to make a habit of it and as Lou said, it knackered the O ring. After several phone calls to Hydrotech they sent me what they promised was the right size o ring. It wasnt. I ended up having to send the whole 1st stage down to them so they could see which one was knackered.

[londonsean69]

Originally Posted by Porg

Just be careful as once it came undone, it seemed to make a habit of it and as Lou said, it knackered the O ring.

OK, silly thought time, anyone think about the tiniest little drop of loc-tite or something similar?? Obviously nowhere near the bottom threads (don't fancy breathing loc-tite ) but a drop or two near the top should prevent this, but still allow for disassembly.

Just a thought

[Rod]

I would certainly get the O ring checked. It is quite easy to pinch or contort that particular one and I always feel better safe than sorry. I am sure your local dive shop will check it for free and if not then change your shop.

[Kristen]

Cheers guys I will get it checked out !