This document, and the content contained herein, is intended for customers, users and other persons with the operation and features of the covered Hegla products. While Hegla makes every effort to include accurate and useful information, it is not possible to anticipate or address every possible situation or to account for conditions at unknown locations or interactions with unknown systems or components. Therefor, these documents must be used only for informational purposes and used in conjunction with best practices and with due care. Hegla shall not be responsible for any injuries or losses that occur as a result of the information in this document. Moreover, as products and offerings change over time, the usefulness of the information in this document may become obsolete. It is the responsibility of the reader or consumer to ensure that the information contained herein is timely and reflects the current reality of Hegla products and offerings. Hegla disclaims any and all warranties regarding the information in this document.

***Read chapter 1 of your operators manual before undertaking any work in the area of the servo motor and drive equipment.***

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When in doubt please contact Hegla service before taking action (404) 763-9700

Y-axis Pinion Gear Replacment

1. Switch the machine off.
2. Remove the motor and resolver cables from the Y-Axis motor.
3. Remove the 4 bolts which hold the motor in place.

    4. Lift the motor and gearbox with pinion up out of the trolley and lay it down on a work surface.

    5. Measure the distance from the bottom edge of the pinion to the bottom of the gearbox.

    6. Loosen the bolts on the taper lock.

    7. Remove the taper lock and old pinion.

    8. Reverse the process to put the taper lock and new pinion back on.
    9. Set the pinion the same distance from the gearbox as it was before.
   10. Tighten the taper lock (Torque 10Nm).
   11. Replace the motor back into the trolley so that the pinion has approx 1/10 mm play in the toothed rack.
   12. Tighten the 4 bolts holding the motor in place and check the position (height) of the pinion in the toothed rack.

    13. Connect the cables.
    14. Switch the machine back on.
    15. Check the zero point (if necessary adjust the MK_Grundoffset Y-Axis).