IAI America ERC - Manual (Page 142)

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10.7 Greasing the Ball Screw (Slider Type)
(1) Applicable grease
The following special grease is applied to the ball screw prior to shipment:
Kyodo Yushi Multemp LRL3
This grease generates less heat and has other excellent properties suitable for ball screws. For equivalent
grease products, refer to the brands specified for the guide (lithium grease).
Note to the user: Never use fluorine grease. If fluorine grease is mixed with lithium grease, the
grease function will drop and it causes damage to the mechanism.
(2) Greasing method
After cleaning the ball screw, apply grease and stroke
the slider to let the grease spread evenly. As the final
step, wipe off excess grease from the ball screw.
This is because excessive grease will cause the
agitation resistance to increase and allow the ball
screw to generate heat easily. Wiping off excess
grease will also prevent extra grease on the ball screw
from flying off and staining the surrounding area as the
screw turns.
* With the ERC, the speed will vary depending on the
load. Be careful not to grease the ball screw
excessively.