Timex DYNABEAT 253 - Page 15

Operation
of
the Model
253
Movement
SECONDS
WHEEL
\
~
I
I
I
.010
APPROX.
THICKNESS
OF
SECONDS
WHEEL)
FIGURE
P
FRICTION
WASHER
PLATE
FIGURE
Q
253.14
A friction
washer
is
located
between
the
plate
and
the
seconds
wheel.
As shown in
Figure
P
and
Figure
Q,
the
washer
is
domed
slightly.
Check
to
see
that
the
washer
has
not
become
damaged
during
disassem-
bly. Too
much
friction
will
cause
too
great
a
drag
on
the
movement
.
Too
little
will
cause
an
erratic
sweep
second
hand
action
.
. A
tab
has
been
provided on
one
leg
of
the
friction
washer.
This
tab
fits
into a
slot
in
the
plate
to
prevent
friction
washer
from
turn-
ing.