Timex DYNABEAT 253 - Page 6

Disassembly
of the
Model
253
Movement
DIAL
ASS'Y.
®
I
I
I
DIAL
TABS
(4}
SWEEP
SECOND'..,
......v
HAND
"'/"
,
FIGURE
A
/ T
SHUNT
BRIDGE
I
~
SCREW
SHUNT
---
,
BRIDGE
I
~~ffiJ'j--
---J
~
FIGURE
B
FIGURE C
WEDGE
PIN
'
BALANCE
BRIDGE
SCREWS
(i
t
I
BALANCE
I
I
WHEEL
.ASS'Y.
BALANCE
BRIDGE
ASS'Y
. •
~
•
RGY
CELL
NECi
~
I
"!l~'toi!'"""::::-,
I
--'
FIGURE
D
See
Figure A
Remove
sweep
second
hand.
(Minute
and
hour
hands
need
not
be
removed)
Straighten
four
(4)
dial
tabs
enough
to
remove
the
dial from
the
movement.
See
Figure B
Remove
shunt
bridge
screw.
Lift screw
end
of
shunt
bridge
off
post
and
care-
fully slide
shunt
bridge
from
movement
(note
Tab
on
end
of
shunt
bridge
which
engages
the
plate).
Replace
shunt
bridge
screw.
See
Figure C
and
Figure D
1.
Remove
the
hairspring
wedge
pin,
do
not
dis-
tort
either
the
pin
or
the
hairspring.
Note
hole
in
the
balance
bridge
which
permits
access
to
the
wedge
pin.
•:•
2.
R o t a t e
the
balance
wheel
carefully
until
the
hairspring
tail
is
free
of
the
hairsprinq
bracket
and
the
regulator.*
3.
Note
position
of
energy
cell
connector
then
re-
move
the
two
balance
screws, remove
connec-
tor,
lift
off
the
balance
bridge
assembly
a n d
carefully
remove
t h e
balance
wheel
assem-
bly.'''
*If
wedge
pin
cannot
be
loosened
through
hole,
remove
the
two
balance
bridge
screws
and
care-
fully remove
the
balance
b r i d g e
and
balance
wheel
assembly
from
movement
to
permit
ac-
cess
to
the
wedge
pin.
253.5