To test whether the problem is the new switch or a further problem with the machine:
Locate where the Z,Y and X limit switches plug into - this is behind the lube panel at the rear of the machine.
Swap the X and Z plugs over.
Now go into diagnostics (Para.dgns twice)
Look for x, y z limit switch - you might need to page down a feew times to find this.
When you have found it toggle the new X switch and see if you get a change from ) to 1 on diagnostics. Then toggle the Z switch located at the top of the column.
From this you should be able to work out where your fault is.
If your fault is with your new switch I would suggest you buy a new one from your HFO. The cable will be the correct length and the new style cable is oil resistant and more flexible.
Hope this helps