probe head grinding gears!!

RBE "advanced replacement" the old probe head with Renishaw. it's quick and easy.
1: turn entire machine off
2: remove probe sensor and adapter
3: unscrew the 4x screws holding probe head into z axis quill
4: gently pull head down (you might need to twist the head while pulling wires down as the Hexagon FSE's often have to shove a bunch of extra wire up the z quill and spin them in the process.
5: unscrew the connector(s)

repeat in opposite order to put back on. Again Make sure machine is entirely shut down.
ooh and when screwing the 4x screws back on, gingerly thread them in to make sure you don't cross-thread those 4x holes. Don't over torque them, either. they are aluminum female threads and a steel screw. you will cross-thread and/or strip the z quill if you don't take your time on this step.

Before completely tightening the head down, push one side of head to be firmly "datumed" against one side of the Z axis quill's inner walls. that's all you really need to do to square the head to the machine.

turn machine on, calibrate master probe, and recalibrate all probes and angles.
done.

RBE "advanced replacement" the old probe head with Renishaw. it's quick and easy.
1: turn entire machine off
2: remove probe sensor and adapter
3: unscrew the 4x screws holding probe head into z axis quill
4: gently pull head down (you might need to twist the head while pulling wires down as the Hexagon FSE's often have to shove a bunch of extra wire up the z quill and spin them in the process.
5: unscrew the connector(s)

repeat in opposite order to put back on. Again Make sure machine is entirely shut down.
ooh and when screwing the 4x screws back on, gingerly thread them in to make sure you don't cross-thread those 4x holes. Don't over torque them, either. they are aluminum female threads and a steel screw. you will cross-thread and/or strip the z quill if you don't take your time on this step.

Before completely tightening the head down, push one side of head to be firmly "datumed" against one side of the Z axis quill's inner walls. that's all you really need to do to square the head to the machine.

turn machine on, calibrate master probe, and recalibrate all probes and angles.
done.