Alpine 7619R - Page 52

3. Replacement of the mounting parts on the rear
of the main chassis
a. Replacement of the belt
(1) After removing the bottom cover, remove the
belt.
(2) Clean the new belt with absolute alcohol, and
fix it as shown in Figure 9.
Note: When fixing the belt, make sure that it is not
twisted or dirty. When removing the belt, do
not turn up the front of the chassis.
Flywheel
oes lever
bY
GR/GR-Y
Series
b. Replacement of the motor
(1) After removing the belt, remove spring @ as
shown in Figure 10.
(2)
Remove
solder
@)-1,
and
remove
the
parallel
wire
(5P)
from
the
control
P.C.
board
as
shown
in
Figure
11.
(3) Remove two screws @) and (0), and remove the
motor, taking care not to damage the motor
idler gear. (Refer to Figure 10.)
(4) Mount the new motor following the removal
steps in the reverse order.
Note: Refer to Item 2-C to make sure that the
temperature of the soldering iron and the
soldering time are proper. Since the parallel
wire is very easily damaged, handle it with
care.
Fasten the two screws with a fastening
torque of 3 kg.cm.
*When inserting the clutch spring, be careful
of the inserting direction as shown in the
assembly
Figure
9
(SS)
Clutch
spring
\
of
Motor
coF
\
CS
idler
gear
|“F"
|
\
OZ
GH
i
—T|S
Eject
solenoid
><a
\
!
St
Se
CB)
Rivtakeup
_—
|
2)
qc
@®@
=
lever
assembly
|
m=
Oy
a
a
:
8
S
°
,
ISS
eae
LSS
pe
N
Motor
~~
<
Ys
Pause
gear
V)
Chassis
Play
eetenod
For
GR75E
Series
:
GR75L
Series
aure
0
GR-Y
Series
models
GR/GR-Y
Series
c. Replacement of the flywheels
(1) After removing the belt, pull out the two
flywheels. Take care not to loose the polyslider
washer (11) located between the flywheel and the
chassis. (Refer to Figure 12.)
(2)
Fix
the
polyslider
washer
to
the
new
flywheel
and mount the flywheel to the chassis.
d. Replacement of the play solenoid
(1) Remove the two solders @)-2 as shown in
Figure 11.
(2) Remove one screw (2) and remove the
solenoid as shown in Figure 11.
(3) Mount the new solenoid following the removal
steps in the reverse order.
Note: Refer to Item 2-C to make sure that the
temperature of the soldering iron and the
soldering time are proper. Fasten the
screws with a fastening torque of 2.3 kg.cm.
Play solenoid
[For GR75E Series model]
Play solenoid
Figure 11
[For GR75L Series
GR-Y Series
GR75H Series models]
e.
Replacement
of
the
eject
solenoid
(1)
Remove
two
solders
@-3.
Take
care
not
to
loose
the
tube
that
protects
the
wire.
(Refer
to
Figure
11.)
(2)
Remove
screw@
and
remove
the
solenoid
as
shown
in
Figure
10.
(3)
Align
position
©-1
of
the
new
solenoid
with
position
©)-2
of
the
lever
and
fasten
the
screw
as
shown
in
Figure
10.
(4)
Lead
the
wire
through
the
tube
and
solder
it.
Note:
Refer
to
Item
2-C
to
make
sure
that
the
temperature
of
the
soldering
iron
and
the
soldering
time
are
proper.
Fasten
the
screws
with
a
fastening
torque
of
3
kg.cm.
As
the
solenoid
wires
are
not
insulated,
do
not
let
them
cross
each
other.
Figure 12