Maintenance 11. Ball Screw Spline Unit
G3 Rev.14 157
11.1.2 Cleanroom-model (C with bellows)
Cover the surrounding area such as the end effector and peripheral equipment in case the
grease drips.
Controller. Stop motor excitation. (MOTOR OFF)
Move the arm to a position where Joint #3 can be moved in full stroke.
Move the shaft to its lower limit manually while
pressing the brake release switch.
Loosen the clamp band under
Move the shaft to its upper limit manually while
pressing the brake release switch.
Wipe off the old grease from the upper part of the
shaft, and then apply new grease to it.
grooves on the shaft inside the
bellows with grease by hand.
Loosen the clamp band on the bellows, and then
move the bellows downward.
shaft to its lower limit manually while
pressing the brake release switch.
Wipe off the old grease from the lower part of the
shaft, and then apply new grease to it.
Directly fill the grooves on the shaft inside the
bellows with grease by hand.
shaft up and down several times while
pressing the brake release
Wipe off excess grease from
bellows, move the shaft to its lower limit.
To attach the lower bellows, move the shaft to its upper limit.
To move the shaft up/down, press and hold the brake release switch.
Attach the mounting part of the bellows
until it touches the cylindrical
Then, secure them with clamp bands.