Yamaha YP-X Series User Manual download pdf (Page 67)

CHAPTER 5 Periodic Inspection

5-9

4 Belt replacement method

Replace the belt if it is damaged, worn or might otherwise interfere with machine

operation.

CAUTION

After the belt has been replaced, the origin position must be set again by

absolute reset, point data setting rechecked, and belt tension readjusted.

4-1 Replacement of the X and Z axis belts (YP320X, YP330X, YP340X,

YP320XR)

1) Turn off the controller power.

2) Remove each of the robot main unit covers.

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) Loosen the M6 bolts securing the metal bracket for the X and Z axis motors.

5) Remove the M8 or M5 bolts shown in Fig. 5-5 and remove the plate securing

each plate.

6) Remove the old belt and replace with the new belt.

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.

(See Chapter 4.)

9) Make corrections if any point data has deviated.

Mark

Pulley

Belt

Pulley

M5 bolt

M8 bolt Metal bracket X-axis motor

Plate

M8 bolt

Fig. 5-4 Markings Fig. 5-5 Belt replacement

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 109 110

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Yamaha YP-X Series User Manual Page 67