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3.2.10 Rotary encoder
3.2.10.1 How to remove
(1) Remove the screw (A) and remove the rotary encoder by
pulling it up. (See Fig. 3-2-10a.)
Rotary encoder (Front side)
Screw(A)
Positioning pin of the rotary encoder
Fig.3-2-10a
Shaft of the rotary encoder guide
Fig.3-2-10b
3.2.10.2 How to install (Phase matching)
(1) Make sure that the mark E of the control plate is in align-
ment with the mark
bring the guide marks on the rotary encoder into alignment
as indicated in Fig.3-2-10a. (See Fig. 3-2-10a and Fig. 3-2-
10b.)
(2) Turn over the rotary encoder with its guide marks kept in
alignment and install it by fitting on the shaft of the rotary
encoder guide and the positioning pin.
(3) Tighten the screw (A) to complete the installation.
3.2.11 Clutch unit
(1) Remove the belt wound around the capstan motor and the
clutch unit.
(2) Remove the slit washer and remove the clutch unit.
Belt
Clutch unit
Fig.3-2-11a
Guide marks
Rotary encoder (Back side)
Mark E
Control plate
of the loading arm gear shaft and
Slit washer
3.2.12 Change lever assembly, direct gear, clutch gear and
coupling gear
3.2.12.1 How to remove
(1) Release the two lugs of the rotary encoder guide in the ar-
row-indicated direction and remove the change lever as-
sembly.
(2) Remove the slit washer retaining the direct gear and re-
move the latter.
Take care so as not to lose the washer and spring. (See
Fig.3-2-12a.)
Change lever
Slit washer
assembly
Spacer
Direct gear
Spring(A)
Position the projecting
side down.
Spring(B)
Lugs
Fig.3-2-12a
3.2.12.2 How to install
(1) Install the clutch gear, spring (A), spring (C), direct gear,
spacer and others to the individual shafts of the main deck,
and finally the slit washer. (See Fig.3-2-12a.)
(2) Let the spring (B) drops into the rotary encoder guide hole
and install the change lever assembly.(Take care not to
mistake a direction of the spring.) The point is to slightly lift
the coupling gear and catch it from the both sides with the
assembly. (See Fig.3-2-12b.)
Rotary encoder guide
Spring(B)
Main deck
Fig.3-2-12b
Coupling gear
Spring (C)
Clutch gear
Change lever assembly
Coupling gear
Main deck
(No.82933)1-23
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