Maintenance 10. Ball Screw Spline Unit
174 G6 Rev.21
Pass the U2 belt and Z belt through
mount the ball screw spline unit to Arm #2.
Secure the nut mounting screws of the ball
screw spline shaft on lower side of Arm #2.
Be sure to keep the timing belt from being stuck
between the nut and
Loosely secure the spline plate to Arm #2.
After moving the shaft up and down
times, secure the spline plate to
Place the Joint #3 motor unit back to Arm
Set the Z belt around the Z1 pulley and Z2
pulley
so that the gear grooves of the belt are fit
into those of the pulleys
Set the U1 belt around the
(upper side) so that the gear grooves
the belt are fit into those of the pulleys
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