Timex 25 - Reassembly of the TIMEX Model 25 Movement; Reassemble Balance Wheel

Reassembly
of
the
Model
25
Movement
DIAL
PLATE
MOVEMENT
PLATE
LIGHT
PERMANENT
CONTACT
HAIRSPR
BALANCE
SCREW
V-CONIC
BEARING
REGULATOR
SLOT
Replace
the
balance
wheel
carefully
into
the
movement
by
tilting
the
wheel
and
inserting
first,
the
dial
side
pivot
(hairspring
side)
then,
the
movement
side
pivot
inta
the
"V-
conic
bearing".
Adjust
the
balance
screw
enough
to
hold
the
balance
in
place.
By
rotating
the
balance
wheel,
insert
the
hairspring
into
the
regulator
slot
and
hairspring
wedge
pin
bracket.
Before
repinning
the
hairspring,
make
certain
the
impulse
pin
is
within
the
slat
in
the
fark
of
the
Pallet
Lever. Repin
the
hairspring
making
sure
that
the
wedge
pin is
straight
and
true,
as
any
distortion
ta
the
pin
could
interfere
with
the
nor-
mal
"breathing"
of
the
hairspring
.
The
endshake
is
now
finally
adjusted
using
caution
to
apply
only
minimum
downward
pressure
to
the
balance
screw,
as
excessive
pressure
could
damage
the
points
of
the
balance
staff.
Inspect
the
hairspring
to
be
certain
that
it
is
properly
adjusted.
As
shown
by
the
diagram,
the
hairspring
should
be
in
light,
permanent
contact
with
the
inside
edge
of
the
regulator
slot
.
The
hairspring
should
not
leave
the
inside
edge
of
the
regulator
slot
at
any
time
during
the
complete
maxi-
mum
occilitation
of
the
balance.
25.7