12. Clean Model Maintenance Part 2: Maintenance
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(4) Fill the groove of the ball screw spline shaft with grease. Apply it directly by hand.
Wipe off excess grease from the shaft.
(5) Push the shaft all the way down to the lower limit while pressing the brake release
button.
(6) Remove the lower bellows, use a screwdriver to loosen the clamp band at the top of the
lower bellows, then slide the lower bellows downward.
Brake release button
Clamp band
Shaft
(7) Fill the groove of the ball screw spline shaft with grease. Apply it directly by hand.
Wipe off excess grease from the shaft.
(8) Move the shaft up and down several times to spread grease all over the shaft while
pushing the brake release button. Wipe off excess grease from the shaft.
(9) Reattach the upper bellows, lift the bottom of the bellows until it covers at least 10 mm
of the cylindrical part of the arm top cover, then turn the clamp band screws to fasten
it.
(10) Reattach the lower bellows, lift the top of the bellows until it covers at least 10 mm of
the cylindrical part of the arm bottom cover, then turn the clamp band screws to fasten
it.