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Timex DYNABEAT 253 - Page 9

Timex DYNABEAT 253
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Operation
of
the Model
253
Movement
ENERGY
CELL
RETAINING
SPRING
TYPE
"A"
ENERGY
CELL
FIGURE
A
FIGURE
B
253.8
To
examine
the
function
of
the
Model
253
movement,
disassem-
ble
the
movement
as
far
as
removal
of
the
dial
(described
on
pages
253.3
thru
253.5).
Replace
the
stem
and
push
into
the
run
position
and
place
on
a
suitable
movement
ring.
Place
the
energy
cell in
position
as
shown
in
Figure
A
and
secure
with
energy
cell
retaining
spring
(this
spring
is
available
upon
re-
quest
from
Timex
material
sales
division
in
Little
Rock,
Arkansas).
Note:
Negative
pole
of
energy
cell
must
touch
the
contact
spring
assembly
as
shown
in
Figure
B.
Never
permit
metallic
contact
be
-
tween
insulated
and
uninsulated
parts
of
the
movement
as
the
short
circuit
will
reduce
the
life
of
the
energy
ce
II.
With
the
energy
cell in
p!ace,
the
movement
should
start
to
run
(balance
wheel
assembly
will os-
cillate)
··
If it
fails
to
start
im-
mediately,
slight
rotation
of
the
watch
may
be
necessary
to
restart
the
mechanism.
Check
that
the
sweep
second
staff
is
moving
when
the
movement
is
running.
*A
mm1mum
balance
amplitude
of
480
°
indicates
the
watch
is
in
~atisfactory
condition
.

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