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

Chapter 9 MXYX

4)Using a grease gun, replenish grease from the grease nipple installed on the linear guide bearings.

Sufficient grease has been replenished when new grease starts to seep out from the clearance between the linear guide bearings and rail.

The X-axis andY-axis each have four linear guide bearings. Replenish grease to all four bearings.

Wipe off any excessive grease that has seeped out to the rail.

Recommended grease gun : MG70 (THK H-type nozzle)

5) Return the stroke cover to the original position.

5-2 Replenishing grease to the ball screw

The X-axis, Y-axis and Z-axis 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.

!CAUTION

Always remove the grease nipple after completing the work. Damage or positional deviation could occur if the robot is operated with the grease nipple installed.

1)Prepare the following recommended grease nipple beforehand.

Recommended grease nipple A-M6X1 type (JIS B1575)

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