JLF-TP-8Y elastic spring problem

Well my JLF-TP-8Y arrived today so I've tried to put it in my case and since it's my first time, I have some problems doing it, the holes for the screws didn't fit, so I took the JLF-TP-8Y apart, tried some stuff but it didn't work. So I put the parts together again. But now the elastic spring is touching the white plasic joint and I just can't find the thing that should stop the elastic spring from touching the joint. Can somebody please help me with a picture or something? Is there perhaps a tutorial/dissassembly with pictures or something? I'm really desperate I've tried to find that thing for half a day now