JUKI RS-1 Maintenance Manual page 15

5) Adjust the Z phase of the motor.
∗ The clearance between the COUPLING and motor is 4 mm. The tightening torque of the
COUPLING_Y_screw is 7 N⋅m. (Figure 1-1-3-5)
Connect the Y-axis motor connector to the top
➀
②Rotate the motor shaft, set the Z phase
(0 phase) marking to the upper side.
Figure 1-1-3-6
6) Install the motor and fasten the ball screw with the following adjustment method.
Maintenance Guide
Fix the coupling to the motor shaft so that the
③
notch on the ball screw side of the coupling is on
the upper side
* Attention to the clearance between the
COUPLING and the motor
Rotate the coupling and fix the fixing screw
②
on the ball screw side at the upper position.
①Move the X frame 10 mm from the mechanical end
Figure 1-1-3-8
1-6
Figure 1-1-3-7