IAI America IX-NNN12040 - Manual (Page 55)

4. Maintenance inspection
49
4.2 Grease Supply on the Vertical Axis
The ball screw and ball spline on the vertical axis require grease supply.
4.2.1 Applicable Grease and Supply Period
Grease to Apply Supply Period
THK AFG+70 Every 6 months
4.2.2 Grease Supply
For grease supply, take off one of the 2 nd arm covers on the right and left, and supply 6 to 10cc
at two places grease nipple with using a grease gun. Also, do not forget to wipe away excess
grease. To take off the arm, refer to the figure. After grease supply is finished, move the
vertical so the supplied grease spreads out evenly over the steel balls inside the nut. To make
up/down operation, either to release the brake in order to have a manual operation or have
JOG operation.

Recommended Grease Gun MG70 (by THK)

Grease Nipple
for Grease Supply to Ball Screw
Cover Fixing Screws
11 places (one side)
Grease Nipple
for Grease Supply to Ball Spline
Warning: Do not attempt to apply fluorine grease. When mixed with lithium grease, not only
decrease the grease characteristics, but also may damage the driving part.
Caution: In case the grease got into your eye, immediately go see the doctor to get
appropriate care. After finishing the grease supply work, wash your hands
carefully with water and soap to rinse the grease off.