John Petrucci JPX floating whammy bridge question

[BigMac2304]

Hi folks, it's my first post here and a good Hi to ya'll!

I've just taken over my brothers John Petrucci JPX and when I pushed the whammy bar onto the bridge, it just swivels and do not stay put at a position say if I need to position it facing the rear to set it up for 'fluttering' effect.

So my question is the whammy suppose to swivel by default or am I missing some parts? Anyway I can make the bar stay put at a position like I can with the floyd rose or ibanez bridges?

Any help appreciated.

 

[TheShreddinHand]

Divebomb the trem and look at the block in the cavity. There's a small hole right inline with the high e string. Tighten with Allen wrench as needed.

 

[BigMac2304]

Hi Shreddinhand thanks for the tip that worked! Also one more question, with the Allen wrench tightened now do I need to loosen it to remove the whammy bar or does it not matter?

 

[A.J.]

It shouldn't matter. The arm "pops" in and out. However, if that screw in the back is too tight it may make it more difficult to "pop" in and out.

 

[BigMac2304]

So is that screw actually in contact with the whammy? Or is the screws pressing on some sort of a ball bearing which rests on that indent on the whammy?