Yamaha NXY, User Manual, Page: 54 / 56

6-6
Chapter
6
PERIODIC INSPECTIONS
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.
Grease nipple
<X-axis>
<Y-axis>
X-axis, Y-axis
The X-axis and Y-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.
Z-axis (ZFL)
Two linear guide bearings are attached. A grease nipple is attached to the counter-
motor side of the slider, so move the slider to the motor side and then start the work.
5) Install the stroke cover.
6) Confirm the surrounding safety, and then turn the controller power ON.
4. 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.
Recommended grease
: Alvania No. 2 (Showa Shell)
Daphne Eponex No. 2 (Idemitsu)
c
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 specifi cation drawings, etc.
• 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.
4. Replenishing grease to the ball screw