Chapter 6 PXYX

5-2 Replenishing grease to the ball screw

The X and Y axes use a ball screw. Grease must be replenished to this ball screw periodically. Select the grease from the following recommended types.

Recommended grease : Alvania No. 2 (Showa Shell)

Daphne Eponex No. 2 (Idemitsu)

!CAUTION

When designated by YAMAHA and the user, special grease, such as splatter- proof grease, may be applied when the robot is delivered. In this case, apply the appropriate grease as indicated in the delivery specification drawings, etc.

1)Turn the controller power OFF.

2)Place a sign indicating "Work In Progress" so that other operators do not turn the controller power ON.

3)Remove the side cover. (Refer to 1-4. Installation.)

4)Apply grease onto the ball screw's shaft with a finger. Wipe off any excessive grease.

5) After greasing, return the side cover to the original position.

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Yamaha 3-axis model, 4-axis model owner manual Replenishing grease to the ball screw