Adjustment Of The Spindle Nuts With Trapezoidal-Threaded Spindle; And Y Axes - WABECO F1200 Operating Instructions Manual

11. Adjustment of the spindle nuts with trapezoidal-threaded
spindle
The spindle nuts of the milling machines are designed to be adjusted.
If a spindle nut of one of the three axis shows play, proceed as follows.
With spindle nuts with a ball screw spindle, adjustment is neither required nor possible.
11.1 x and y axes
1. To adjust the spindle nut in the x-axis (2) the cross slide support is moved to the middle.
2. After undoing the threaded pin (1), the adjustment nut (3) is rotated slightly in a clockwise
direction. This rotation causes both nuts to tension each other and removes the play from the
operation of the trapezoidal-threaded spindle.
3. After the setting has been made, tighten the threaded pin (1) back up again.
4. To adjust the spindle nut of the y-axis (5), either unscrew the bellows (7) on the upper skid or
carefully tip the machine backwards to gain access to work from the bottom.
5. After undoing the threaded pin (4), the adjustment nut (6) is rotated slightly in a clockwise
direction. This rotation causes both nuts to tension each other and removes the play from the
operation of the trapezoidal-threaded spindle.
6. After the setting has been made, tighten the threaded pin (4) back up again.
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