CMM won't home

Remove the right cover (if it's a Global), and check if the belt is at the right place, and turn the wheel. If it turns with the power on, check the wiring on the motor and in the controller.

Not about beer or guns, sorry.
We moved our CMM up the road. Now it won't home. We can jog it in Z, no problem entire range. Y, just about an inch before erroring out says position error Y axis. Nothing at all in X.
Cleaned scales. Moved by hand away from home, and all over.
Air is plentiful, but new/different location. Machine needs 90psi, we tried at 90 and up to 115. Back to 90 now. Speaking of new air we also added a receiver tank. We are currently looking at bypassing that, but want to get a start on other suggestions from you guys maybe.

I dont think anybody here drinks beer anymore

I drink enough beer for a couple of us.

Cover off from the move. The belt is right there in my face. It is with my thumb, on that belt wrapped around the wheel, that I push the wheel with my thumb to make X move. Of course, I can also grab the whole Z rail and drag it along that way as well... I'll post a pic in a new reply below ...

The belt is fine. I thought I remembered the motor having big resistance, impossible to move by hand resistance, when the servos are on??

Gah, I'm going to fool around with it a while more, then I'm going to call someone.

I believe that, if the power is on, you can't move the axis.
I would check if there is voltage at the motor (red and blue wires on the photo)
Have a nice week-end !

S O L V E D ! ! !

JEFMAN no voltage to the motor @ those wires. I isolated the servos in the control box. X and Z each had one green indicator LED but Y nothing. Didn't make sense to me since I'm able to jog Y axis, not X. I called Nikon, they suggested that perhaps we blew a fuse @ that servo. Lucky for me there are 2 empty servo slots each with unused fuses in them. Pull the servo cards out (they look like PC gaming cards) to gain access to the well hidden Y servo fuse slot and replace. Nothing before told me to go fishing around there so I didn't immediately notice that the servo card had become unseated. You know that feeling you get when you instantly realize you just figured something out? I seated the card, fired it up, machine is perfect again!!
I don't feel bad for not immediately getting this: 1) It's not my job, 2) our local tech in to re-certify the machine after the move didn't catch it either, and 3) I still saved our company like a Million dollars over having a Nikon tech come out to service it. BTW, Nikon service guy was extremely helpful over the phone....for free... even after having never used them for any kind of service at all since buying the machine some 6 or 7 years ago.