I managed to freed up the moving coil for the 600 kHz adjustment. Now I need to figure out which control is used for the 1400 kHz adjustment. My guess it's either the one marked "L4 MW OSC" or "CT2 MW RF". Because of thunderstorms I'll have to wait until another day.
I have to admit the E100 is easier to work on than the M37V/W. But as some DXers have shown the little receiver has potential.