Fender Student S10 knee lever problems

[jonah]

Hi everyone, I've been having a couple knee lever issues and I was wondering if anyone could help me with them. The problem is the LKL and LKR don't do anything on the high E string, but do move the low E. I have it set up so that the LKL is +F and LKR is -D#. The lower string seems to work completely fine but the high E (string 4) just doesn't move. It used to not work on LKL and (kind of) work on LKR but it has recently given out on LKR too. Does anyone have any idea what would commonly cause this on an old Fender steel? Any help would be appreciated! I'm quite practical but not super familiar with fixing steels so any tips or help before I get stuck in would be really useful. Thanks!

[JohnDavisStringsHere]

[b] If your guitar is a pull release mechanism then the lower bass string only has to move a semi tone either way however the top e string has 3 moves eflat e and f#, is the mech limited?[ /b]

[jonah]

Hmm, it seems to be that the changer moves a lot more at the low e string than the high e string. I had a look underneath today to see if I could see anything obvious but it doesn't seem like there's a good reason why the high e isn't properly moving along with it. I'll have a good look and hopefully something obvious will show up!