Yamaha YP-X Series User Manual download pdf (Page 69)

CHAPTER 5 Periodic Inspection

5-11

4-3 Replacement of Z axis belt (YP220BX, YP220BXR)

1) Turn off the controller power.

2) Remove the side cover on the robot unit.4)

3) Place marks(with a marker etc.) on the pulleys before replacement to limit

deviations in point data occurring due to the belt replacement. (Fig. 5-4)

4) Remove the M6 bolts securing the Z-axis motor metal bracket, and remove

the belt from the pulley.

5) Remove the M6 bolts shown in Fig. 5-8, and remove the plate securing each

shaft.

6) Replace the old belts with new belts.

7) Place the new belt on the pulley lining it up with the marks (for synchroniz-

ing the positions of the two pulleys) you made in step 3) above.

8) Adjust the belt tension and set the origin position again by absolute reset.

9) Make corrections if any point data has deviated.

M6 bolt

Metal bracket

Z-axis motor

Fig. 5-7 Belt replacement

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Yamaha YP-X Series User Manual Page 69