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Timex 40 User Manual

Timex 40
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40
.6
Disassembly
of
Movement
Cont•
d.
CONTACT
ILLUSTRATION I
CONTACT SPRING
ILLUSTRATION 2
To observe
the
action
of
the
contact
spring
and
balance
use
the
following
procedures:
Rotate
the
balance
slowly from its
rest
position with a
clean
brush.
(See
illustration
l.)
The
instant
the
con-
tact
spring
touches
the
contact
pin
fixed on
the
balance,
current
flows
through
the
balance
drive coil.
The
current
induces a
magnetic
field which
opposes
the
field
of
the
magnet.
This
opposition of
magnetic
fields
imparts
on
impulse to
the
balance
when
the
magnet
is
in
place.
The
purpose
of
the
contact
jewel is
to
limit
the
physical
contact
between
the
contact
pin
and
contact
spring
so
that
the
flow of
electrical
energy
oc-
curs
at
a precise position
during
the
rotation
of
the
balance.
After
the
balance
returns
to
its
neu-
tral position,
the
some
process is
re-
peated
in
the
opposite
direction.
(See
illustration
2.)
Repeat
this
test
sev-
eral
times
until
the
drive
action
is
fully
understood.
The
function
of
the
remainder
of
the
movement
is
fully
mechanical.

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Timex 40 Specifications

General IconGeneral
BrandTimex
Model40
CategoryWatch
LanguageEnglish

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