X-Axis Ball Screw Change Procedure; X-Axis Ball Screw Removal Procedure - Yamaha SIGMA-G5SII Service Information

3.2. X-Axis Ball Screw Change Procedure

3.2.1. X-Axis Ball Screw Removal Procedure

* Wipe out anti-rust oil in advance from the linear guide.
* Refer to Chapter, for the removal procedure.
(1) Remove the four truss head screws (M4L10) from the ball screw cover.
Note: Do not remove the other truss head screws (M3L6).
Note:
Remove the specified screws. Do not remove M3L6 screws because
they are to be used for positioning.
(2) Move the head to the motor side (in the direction ①).
Take out the cover from opposite side of the motor (in the direction ②).
(3) Remove the seven truss head screws (M4L6) on the cover over the ball screw.
Slide the head to the motor side. Turn the upper cover and remove it on the opposite
side of the motor.
Remove the 7 bolt screws on the
locations specified with the left red
circles.
Fig. C17
② ①
Fig.C18
96/273
For Service Engineer
Service Information
When the cover is to be removed, it is
required to incline the cover to some
extent. Otherwise, the cover cannot
be removed. Because of this reason,
before the cover is removed, make
sure to move the head in the direction
①.
Fig.C19
SI1705004E-00=SIGMA-G5SII Service Manual