Teac A-450 - PLAY IDLER ASSY; MECHANICAL CHECKS AND ADJUSTMENTS; PINCH ROLLER PRESSURE

3-10.
PLAY
IDLER
ASS‘Y
1.
Remove
the
Bottom
Cover.
See
3-1
section.
2.
Take
out
the
Drive
Belt
and
the
Flywheel.
See
3-6.
3.
Lift
off
the
Play
Idler
Ass’y
(B)
with
the
Spring
(C)
removed
from
the
mounting
pin
(E)
and
the
E-ring
(A)
taken
off
from
the
pivot
stud
pin
(D).
4.
For
further
disassembly
of
the
Play
Idler
Ass’y,
refer
to
the
DETAIL
“B”.
When
remounting,
clean
the
driving
surface
of
the
Idler
with
the
TEAC
TZ-261B
Rubber
Cleaner
or
with
pure
alcohol.
Viewed
from
Bottom
T-46)
—————
.
Fig.
3-12
Play
Idler
Ass'y
Replacement
NOTE
All
the
mechanical
checks
and
adjustments
should
be
done
with
the
Trim
Case
Cover
removed.
(See
Section
3-1)
4-1,
PINCH
ROLLER
PRESSURE
Specification:
400
g
+
20
g
(13.5
~
15.0
02.)
1.
Switch
on
POWER.
2.
Place
the
deck
in
the
PLAY
mode
with
no
tape
loaded.
3.
Attach
the
spring
scale
to
the
Pinch
Roller
shaft
as
shown
in
Fig.
4-1.
4.
Gently
pull
the
scale
away
(in
the
direction
of
the
arrow)
until
the
Capstan
shaft
and
the
Pinch
Roller
are
completely
separated.
We
5.
Gradually
release
the
tension
on
the
scale
until
the
Piatt
Pinch
Roller
just
begins
to
rotate.
The
scale
should
Rae
2
ore
approximately
400
g
+
20
g
(13.5
~
Bend
here
to
adjust
Finis
6.
If
the
reading
is
out
of
specified
range,
adjust
the
Fig.
4-1
Pinch
Roller
Pressure
Measurement
tension of the Pressure Spring by bending the tab of
the Pinch Roller Ass’y slightly.
11