Alpine 7390M - GR Series - Functional Parts Replacement (continued); Belt and Motor Replacement

GR Series
3. Replacement of the mounting parts on the rear b. Replacement of the motor
of
the
main
chassis
(1)
After
removing
the
belt,
remove
spring
@
as
shown
in
Figure
10.
a.
Replacement
of
the
belt
(2)
Remove
solder
@-1,
and
remove
the
parallel
wire
(5P)
from
the
contro!
PC
board
as
shown
(1)
After
removing
the
bottom
cover,
remove
the
in
Figure
11.
belt.
(3)
Remove
two
screws
@)
and
@®,
and
remove
(2)
Clean
the
new
belt with
absolute
alcohol,
and
the
motor,
taking
care
not
to
damage
the
fix
it
as
shown
in
Figure
9.
motor
idler
gear.
(Refer
to
Figure
10.)
(4)
Mount
the
new
motor
following
the
removal
Note:
When
fixing
the
belt,
make
sure
that
it
is
not
steps
in
the
reverse
order.
twisted
or
dirty.
When
removing
the
belt,
do
not
turn
up
the
front
of
the
chassis.
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
Flywheel 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
Figure.
Pully idler
Figure 9 Motor idler
Rib takeup
“=S lever
Pause gear <8
iy,
Figure 10