CHAPTER 4 Adjustment

3-4-1-3 Adjusting the X-axis machine reference

The adjustment method for the X-axis machine reference is as follows.

1)Prepare the necessary tools.

•Hex wrench set

2)Check that no one is inside the safeguard enclosure, and then turn on the controller.

3)Perform the absolute reset from outside the safeguard enclosure.

Refer to "3-3 Absolute reset procedures" for information about the absolute reset method.

4)If any machine reference value displayed on the MPB is not in the range between 40 and 60 (recommended range) after the absolute reset has been completed, then proceed with the following adjustment procedure.

5)Place a sign indicating that the robot is being adjusted in order to keep others from operating the controller or operation panel.

6)Turn off the controller and enter the safeguard enclosure.

7)Mark off the reference mark at the current origin position on the X-axis joint area of the robot.

At this time, be careful to prevent the origin position from deviating since the X-axis arm is touched.

8)Using a hexagon wrench, loosen the two bolts fixing the X-axis movable mechanical stopper. (See Fig. 4-9.)

!CAUTION

The bolt only needs to be loosened, and does not need to be completely re- moved.

9)Move the movable mechanical stopper in the following manner. When machine reference < 40% :

Move mechanical stopper in A direction When machine reference > 60% :

Move mechanical stopper in B direction The movement guide is 2.2mm/100%.

10)Tighten the bolt and fix the movable mechanical stopper. The tightening torque is 4.4kgfcm (0.43Nm).

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Yamaha YK120X, YK180X owner manual Adjusting the X-axis machine reference
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YK120X, YK180X specifications

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