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11.8 Stepper Motor Assembly Removal and
Installation (See 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 actuator to the carriage arm
assembly.
(4)
Remove the two (M3 x 6) stepper motor
assembly mounting screws and then the
stepper' motor.
(5) Reverse the above procedure to reinstall.
(6) After reinstallation, perfoim limiter check as
in 9.10 and radial alignment adjustment as in
9.5.
(7) Adjust the track 00 sensor according to the
instruction in 9.8.
Fig. 11.8 Stepper Motor Assembly Removal
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11.9 carriage Arm Assembly Removal and
Installation (See Fig. 11.9)
(1)
Remove the printed circuit board as described
in11.1.
(2)
Remove the insulating paper and shield plate.
(3)
Remove the track 00 assembly as described in
11.3.
(4)
Remove the stepper motor assembly as
described in 11.8.
(5) Remove the two guide rod clamp mounting
screws.
(6) Remove the carriage arm assembly, guide
rod damp, and guide rod.
(7) Pull out the guide rod from the carriage arm
assembly.
(8) Reverse the above procedure to reinstall.
(9) After replacement, perform limiter
adjustment as described in 9.10, track 00
sensor adjustment as described in' 9.8, and
radial alignment adjustment as described in
9.5.
Fig. 11.9 Carriage Arm Assembly Removal
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