Capstan Deck Adjustment - Sony AV-3600 Service Manual

tension
re tease lever
pinch
lever
capstan shaft
Step
1
0.5
^1 mm
pinch
roller
Fig.
4-21.
Capstan deck adjustment
6.
Lift
up the Capstan
Deck
Ass'y.
Take
the
drive
belt
off
the Flywheel.
7.
Pull
the
Capstan Shaft Ass'y (Flywheel) off the
Capstan Bearing
on
the Capstan Deck.
8.
Fold the Capstan
Deck
Ass'y back and remove
the
Capstan Bearing Retainer by removing
the
three screws.
9.
Remove
the Capstan Bearing Cap from
the Cap-
stan
Bearing
Oil
Ring and
Oil
Ring
Retainer using
a screwdriver.
Remove
the Capstan
Bearing.
10.
Before
installing
the
new
Capstan Bearing
inspect
the
replacement.
Pass a clean
lint-free
cloth
through the capstan
hole,
and
inspect the inner
surfaces for
dirt
or foreign matter.
1 1
.
Inspect the
new
Capstan
Shaft
Assembly. Handle
the
Capstan Shaft
carefully to avoid scratches or
nicks
on
the bearing surface.
12. Insert
the Capstan Bearing
into the Capstan
Deck
and put the Capstan Bearing Retainer
on
the Cap-
stan Bearing.
Tighten the three screws
that secure
the
retainer to the
chassis.
13. Place a
few drops of
oil
on
the inner surface
of
the
bearing.
14.
Put the
Spacer on
the
Capstan
Shaft. Insert
the
shaft into the
Capstan
Bearing.
15.
Hold
the
Flywheel with one hand and
slip
the Oil
Ring Retainer
and
Oil
Ring onto
the
shaft.
Place
a
few
drops of
oil
on
the Oil Ring, then put the
Bearing
Cap on
the Capstan Bearing.
16. Reinstall the capstan
drive
belt.
Reinstall the
new
Capstan and
replace the mounting
screw.
17.
Put
the
Capstan Deck
Assembly
with Flywheel
on
the four posts of the
chassis. Position the
Pinch Lever with
relation to
Tension
Release
Lever
as
shown
in Fig.
4-21
.
18.
Tighten
the four screws
that secure the Capstan
Deck
Assembly
to the capstan deck
supports.
19.
Reconnect
the Pull
Rod
Spring to the
Pull
Rod,
20. Install the Pull
Rod
and
retainer
onto
the
Rewiad
Idler Shaft.
capstan shaft
pinch
roller
Fig.
4-22. Capstan deck adjustment
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