Service manual

The
practice of cleaning a con-
vnnlional watch, as a
routine
pari
of
nearly every repair, results
from
the watchmaker's knowl-
Sdgt
(Ji.it
optimum performance
and reliability can be
expected
only
when
lubrication Is fresh.
The
performance
of
ACCUTRON
is relatively unaffected by the
con-
dition of
the lubrication. Cleaning
will not usually be required to re-
store an ACCUTRON
timepiece to
proper operating condition When
cleaning is
necessary,
the
infor-
mation
an tbi* p»ko
is applicable-
Cleaning
Separate
all cap jewels in
jeweling devices
with spring-held cap
jewels from pillar
plate and tram bridge.
After cleaning,
replace cap
jewel
assemblies.
Ultrasonic
quipim-nt
in
necessary for cleaning the
ACCUTRON
movement. The
ACCUTRON
movi-iiieni should be treated
exactly as any fine watch
movement, with
one
exception. The electronic
circuit, the tuning fork and the
pawl bridge
should not
be cleaned in
ultrasonic equipment, because of
the possibility of damage
to delicate
parts.
The tuning fork,
colls, and pawl bridge can be
cleaned satisfactorily by
merely dip-
ping into a "benzine
cup"
and
thru placing
00 >
tissue to dry.
Care should
be
taken to prev.-nl DUHil chips,
which may be
present
in the
cleaning
cup or on the
bench,
from being
attracted In
the
permanent magnets on
the linn
of
the tuning fork.
Inspect the fork carefully
after cleaning, anil if this has
occurred.
any
particles
ih.ii linging (• thi
mtgDtto
can be removed
with masking tape.
NO PARTICLES
SHOULD IIK LEFT CUNCINC TO FORK
MAGNETS.
The center
whei'l
.muenibly
[cannon pinion with center whcell
should not be token
apart, but cleaned an n unit. Aftur cleanimt.
tin- whirl
should
not be
rotated until
properly
lubricated. (See reassembly
instruction Page
33.
J
Tin- index
wind required special handling care in cleaning to
prevent
damage
io the
!,,!li I of this purpose, it iu necessary tu
use
a suitable
tool to grasp the index
wheel pivots when
imtmTrung the index wheel in the
ultrasonic
cleaner.
NEVER
HANDLE
TUB
INDEX WHEEL HY THE RIM-
GRASP THE PINION ONLY
A mitable holding
loot
for
cleaning the index wheel can easily be
fabricated by
modifying an ordinnry pair of watchmaker's tweeter* made of
brass or
Othtl
"<"'
magnetic
material.
||
follows:
L.
Spot drill the
insider,
oi
the tweezer tips as shown in the
upper section of Fig, 32.
2. Bend a piece
ol stiff win- around the tweezers and form the
wire so that it can
be used as a clamp. One end of
the wire
should
be placed between the tweezer
tongs.
1
Check thai wire clamp locks tweezer tips
progressively
closer
together as clamp
is
pushed towards the tips.
Note:
Authuri/rd Material Distributors can supply, at nominal cost, a special
Index
Wheel Holder illustrated tn lower section of Fig.
30