Panasonic JU-475-4

12.8 Stepper Motor Assembly Removal and
Installation
(1) Remove the head carriage assembly as
described
in section 12.9.
(2) Remove
the two stepper motor assem bl y
mounting screws.
(3) Remove
the stepper motor and stepper motor
stopper.
(4) Reverse
the above procedure to reinstallation.
(5)
After reinstallation, adjust the radial alignment
and track 0 sensor as described in section 9.6
and 9.9.
Stepper Motor Assem bly
Fig.12-8 Stepper Motor Assembly Removal
-18 -
12.9
Head Carriage Assembly Removal and
Installation
(1) Remove the PCB as described in section 12.1.
(2) Remove the one pig tail clamp mounting screw.
(3) Remove
the two guide rod clamp mounting
screws.
(4) Remove
the head carriage assembly, guide rod
clamp,
guide rod, and pig tail clamp.
(5) Pull
out the guide rod from the head carriage
assembly.
(6) Reverse
the above procedure to reinstall.
(7)
After reinstallation, adjust the radial alignment
and track 0 sensor as described in section 9.6
and 9.9.
Head Carriage Assembly
Fig.12-9 Head Carriage Assembly Removal