Collect Assembly; Clamp Assembly - Panasonic JU-455-5 Service Manual

11.4 Collet Assembly Removal, Installation. and
Adjustment (See Fig.11.4)
(1) Remove the Cartridge Guide Assembly as
descri bed in 11 .7
(2) Remove the lifter spring from the lifter.
(3) Remove the E-ring from the lifter shaft.
(4) Remove the lifter from the Cartridge Guide.
(5) Remove the Collet Assembly from the Guide
shaft.
(6) Reverse the above proced ure to reinstall.
(7) After reinstallation, perform collet assembly
center adjustment.
(B)
Collet assembly center adjustment.
a) Temporaril y fasten the Cartridge Guide
Assembly.
b) Insert a diskette or dummy diskette and
damp it.
c) Clamp repeatedly a few times to find a
good fit between the collet and the
inside diameter of the DO motor.
d) Bind the screw ofthe Cartridge Guide.
e) Check step c) again, if not good repeat
steps a) through d) unti l the correct
center adjustment is achieved.
Col!et
A~sembly
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Fig. , 1.4 Collet Assembly Removal
, 1.5 Cl amp Assembly Removal and Installation
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(1) Remove the front plate as described in 11 .2.
(2) Remove the two damp assembly mounting
screws.
(3) Remove the damp assembly.
(4) Reverse the above procedure to reinstall.
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Fig. 1' .5 Clamp Assembly Removal
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