Apex ATX 200 question

[doublegun3]

ATX 200 cover not closing all the way

I bought an ATX 200 2 years ago and I have a question concerning the 2nd stage.
After several dives I removed the cover on the second stage to check the diaphram. When I replaced the cap after cleaning and checking it, it would not close all the way. It looks as if it needs to screw down one quarter more of a turn. Is this normal? I don't want to force it.
It is hand tight and not striped. The reg works fine. It just looks a little strange. The Apex logo on the purge button is not verticle as it was when I bought it.

Have any of you experienced this problem, and is it something I should be concerned about?

Thanks

 

[LUBOLD8431]

Make sure the threads are clean, and make sure that the diaphragm and the retaining ring are set firmly in place. If you try to force the cover down with the diaphragm in the threads, it will not shut, or may damage the diaphragm. Disassemble the second stage again, inspect all parts for damage, clean threads, then assemble. The cover should screw down all the way. It does take some effort to screw down.

 

[Atticus]

While I'm not opposed to people servicing their own gear, and taking the cover off a second stage is not a huge deal, this might be a good opportunity to drop by your neighborhood dive shop and have them take a quick peek. Hopefully they won't charge you for something this simple since it will probably take them all of a minute or two.

I haven't had the problem you describe on my atx 200's (I have 4 of them). As was previously said the culprit may be sand, or it may be that the diaphragm isn't seated properly. An experienced shop person should be able to see the problem very quickly.