I just put my RMS mounts on my aquarium tonight. Should there be left to right wiggle room where the arm attaches to the mounting bar? This is where the allen wrench type bolt is.
I found this problem as well. If you take the arm back off and and look it underneath do you see a mark where the allen bolt has bottomed out and is hitting the arm instead of being able to tighten against the "nut"? This is the issue I had with the RMS for the 30's, I have not had the same issue for the 15's.
Basically the bolt is just a tough too long and needs to be ground down.
Hope this helps.
If it does please report back for the benefit of others....or what ever it is that turns out to be the issue.
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