Stepper Motor Assembly Removal And Installation; Head Carriage Assembly Removal And Installation - Panasonic JU-475-4 Service Manual

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
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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