Dies tguis just miove the head up and down, or does
it also move it from
side to side. I am wondering if it's there to adjust the depth of
engagement between the rack and pinion.
It moves the heads in an arc around the rack and pinion as a pivot point. The engagement
of the pinion does not seem to be adjustable. The motor can be rotated but not shifted
radially as far as I can see. Also the track 0 sensor is adjustable.
/Jonas