Change string set brought up the bridge

[lucar]

Hi Everybody,

I'm finally the proud owner of a MM JP15 SB Quilt! Amazing instrument.

Last night I changed all strings with a std set of Ernie Ball Regular Slinky 10-46.
It is my first guitar with locking tuners and a floating bridge like this one.
I believe the set that was on it was the same as I don't feel nor see any difference.

Anyway, I tune the guitar in std tuning and leave it there to go to dinner.
A couple of hours later I went back and I noticed that the string heights is horribly high... to find out a second later that the bridge was tilted forward by about 30 degree. :-(

Is that normal?
The room was a little chilly at 18 Celsius (64F) and although other guitars at that temperature show tuning slightly sharp vs during the summer (we get up to 40C here in Italy), I was very sursprised to see the bridge tilted so much.
The other considerations I have is that I believe these guitars do come out with this set in it so I am wondering what the heck is going on and if it is normal.

For now I detuned all strings down one whole tone and the bridge went back to normal... perhaps a little backwards too...
Do I have to wait for the strings to "settle"?
Now I'm scared to touch it...

Any advice would be greatly appreciated.

Thank you very much for any insight.

 

[fbecir]

Hello and welcome aboard

I believe you buy your guitar second hand ?
Perhaps the guitar was set up wit 9-42 strings. Thus it's normal that with 10-46, there is more tension. And of course the bridge is higher.
You can try to put 9-42 strings or set up your guitar with 10-46 strings. You just have to screw a bit the springs or add a spring.
With pictures, it will be easier !

 

[lucar]

Hi Francois and thanks for the reply.

Here are the photos with the guitar tuned in std tuning.
I also took the back cover off to show the std 3 springs...

Yes I bought it second hand.

Thank you

 

[lucar]

@Francois,
when you said: "You just have to screw a bit the springs" do you mean to screw in the 2 screws more in the wood or screws/turn/twist the spring more? I don't think the latter is possible...
Thank you

 

[fbecir]

Yes it is what I mean : just screw in a bit more the two screws (but first, lower the tension of the strings, it will be easier).
Take a screwdriver with a long shaft.
My AL and my SUB are set up with 10-52 strings.
Here is a pic of my AL :

 

[fbecir]

The tremolo is floating a bit on my AL, thus the pitch can go up or down :

 

[lucar]

Merci' Francois!
I've also found this helpful video

(never done this before in my life so a little scared)

Thanks and have a good evening

 

[lucar]

OK FYI operation done I'm a happy man with a mint Musica Man all sorted
Thank you!