Hi Laurent,

Many thanks for your reply. Sorry - I didn't describe it very well.. I hope that this picture helps... What I'm trying to do is separate the spindle housing casting from the Z axis slide (I need to replace the spindle bearings). I undo the 4 bolts around in the corners of the spindle housing casting, but there is still a pivot in the middle which allows the casting to rotate into a horizontal position. I can't see a way to remove the casting from that central pivot (if possible without having to remove the Z axis slide)?

Click image for larger version. 

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