Panasonic JU-455-5 - Drive Motor Removal and Installation; LED Assembly Removal and Installation

11.8 Stepper Motor Assembly Removal and
Installation (S ee Fig . 11 .8)
(1) Remove the insulating paper and shield
plate .
(2) Remove the track 00 sensor as described in
11.3.
(3 ) Remove the two (M2 x 4) actuator screws that
fasten the actuato r to the carriage arm
assembly.
(4) Remove
the two (M3 x 6) stepper motor
assembly moun ting screws an d then the
stepper ·motor.
(5) Reverse the above procedure to reinstall.
(6) After reinstallation, perform limiter check as
in
9. 10 an d radial alignment adju stment as in
9.5.
(7) Adjust th e track 00 sensor according to the
ins tru ction in 9.8.
Fii- " .8 Stepper Motor Assembly Removal
- 16 -
11 .9 Carriage Arm Assembly Removal and
Insta ll atio n (See Fig.11. 9)
(1) Remove the printed circuit board as described
in 11 .1.
(2) Remove the insulating paper and shield pl ate .
(3) Remove the track 00 assembly as descrj bed in
11.3.
(4) Remove the stepper motor assembly as
descri bed in 11 .8.
(5) Remove the two guide rod clamp mounting
screws.
(6)
Re move the carriage arm assemb ly, guide
rod
damp , and guide rod.
(7) Pul lout the guide rod from the ca rri age arm
assemb
ly .
(8) Reverse
the above procedure to reins ta ll.
(9) After replacement, perform limiter
adjustment as described in 9.10, tr ack 00
sensor adjustment as described in 9.8, and
radial ali
gnment adju stment as described in
9.5.
Gu ~e R . ' ~C- __ ___ . __ ~'
Fig. " .9 Carriage Arm Anembly Removal