Tascam 3030 - 2 Mechanical Adjustments and Checks; 2-1 Rotating Part Thrust Clearance Checks; 2-2 Capstan Motor Replacement; 2-3 Brake Adjustment

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0.1mm
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6.
reel motor
chassis
solenoid
plunger
brakg
arm
brake
felt
brake
band
brake solenoid
solenoid
mounting
screws
deck
\
-
2
MECHANICAL
ADJUSTMENTS
AND
CHECKS
&E*Bo]-dH*rrE-#.
2.1 ROTATING PART
THRUST
CLEARANCE
CHECKS
Reference values
Capstan shaft:
I
nertia roller:
Reel motor:
Tension arm:
ilOTE:
Since
the
capstan
shaft
is
a magnefloat
type,
check that
it is
forced
towards
the
rear
of the deck
while rotating.
2.2
CAPSTAN
MOTOR
REPLACEMENT
l. When the
capstan
motor is
replaced.
install
itwith
its lead wires
and washers
as
shown.
2. Check that,
when
the deck
is operated
by repeating
the forward
and reverse
play
modes,
the
capstan drive
belt
changes
position
on the flywheels
smoothly.
top
of
the
Fig.
2.1
Capstan motor replacoment
2-3 BRAKE
ADJUSTMENT
ttl0TE:
The explanation
and figure
in this
paragraph
are for
the left
side brake,
similar
checks and
adjustment
are applicable
for
the right
side one.
1.
With brake
applied
(brake
solenoid off), move
brake
band bracket
in directions
(A)
so
that
brake
arm
comes
in
parallel
with reel
motor
chasis.
2.
Adiust the mounting
position
of brake
solenoid in directions
(D)
so
that
when brake
solenoid
switches on and
off the
stroke
of the
solenoid
plunger
is
about
2mm.
3. Adjust
band
ass'y retaining
plate
in directions
(B), (C)
and
(E)
so
that brake
felt
does not
touch brake
drum when
brake
solenoid
switches off.
4. Upon
completion
of adjustments,
check that tape
tension
does
not drop
in any
tape transport
modes
and there
is notanytape
winding
troubles.
G)-O4.5
x O12
x tO.8
<s
-Q4.5
x 08
x t0.5
*=€,07
]\-- 1i5
brake
drum
Fig.
2-2
Brake adjustment