Timex 40 User manual

TIMEX

model 40

9%

by

12%

lig.

22.1

by

28.70 mm

.870

by

1.130 in.

(/}

m

:0

<

s::-

oO

om

[!!~

""")>

oz

c

)>

r

the

TIMEX

Model

40

Movement

The

Timex

Model

40

is

an

9%

x

12%

ligne

electric

watch

movement

.

The

power

to

drive

the

movement

is

supplied

by

a

miniature

energy

cell. Power

from

the

energy

cell drives

the

balance.

The

balance

drives

the

time

train

which,

in

turn,

rotates

the

hands.

The

energy

cell

is

guaranteed

for

12

months

and

replacement

cells

are

avail-

able

from your local

Timex

dealer,

repair

station

or

the

Timex

Material

Sales

Division.

It

is

important

to

use

only

genuine

Timex

Energy Cells,

Type

A.

Other

types,

although

they

look

the

same,

may

not

deliver

the

necessary

voltage

or

life

and,

in

addition,

may

leak

,

ser

i

ously

damaging

the

movement

.

The

hands

are

set

in

the

normal

method-tha

t is, pulling

out

and

rot

ating

the

crown.

The

Model

40

incorporates

a

device

which

stops

the

movement

when

the

crown

is

in

the

set

position

. In

this

position,

the

flow of

current

from

the

energy

cell

is

interrupted

and

the

energy

cell is

not

being

discharged

.

The

Timex

electric

has

an

hourly

beat

of

21,600

.

The

large

balance

has

a

temperature

compensated

hairspring

and

the

rate

can

be

adjusted

in

the

usual

way by moving

the

regulator.

The

Timex

electric

can

be

checked

in all positions

on

a

normal

watch

rate

recorder.

The

Timex

electric

can

be

dismantled

and

repaired

with

conventional

tools.

There

is no

need

for special

knowledge

of

electricity

or

electronics,

or

any

need

for

complicated

electrical

measuring

or

inspection

devices, new tools or microscopes.

For

checking

the

battery

voltage,

a

high

ohm

volt

meter

(about

20,000

ohms

per

volt),

which

is

now in

use

in

most

repair

stations,

is

sufficient

.

Since

watch

contains

permanent

magnets,

no

attempt

should

be

made

to

demagnetize

the

watch.

40.1

40.2

th

e

TIME

X

model

40

movement

(exp!oded

view)

5121

/ 1

5121

I

,,

~b

2

~

1

-v--

4020/1

d

~

740

!

5

4020/1

721

~

'"

~

4080

~

2

7

~

36

~

\

"'

210

495/

3

6fJ

~

498

:

·,,:

1

~

:

~

498/1

850

~

'

751

851

852

( 1 / /

y :

9433

100

PLATE

ASS'Y.

11

0

TRAIN WHEEL BRIDGE

ASSV:

121/1

BALANCE BRIDGE ASS'Y.

145

DIAL

REST

200/2

FRICTION PINION

200/3

FRICTION SPRING

206

CENTER WHEEL

ASS'Y

.

210

THIRD WHEEL

ASS'Y

.

227

SECONDS

WHEEL ASS'Y.

255

HOUR

WHEEL ASS'Y.

260

MINUTE

WHEEL

ASS'Y

.

401/

1

SETTING STEM WITH

CROWN

495

/ 3

STEM

BRACKET

498

FRICTION WASHER

498/1

HOU

R WHEEL WASHER

721

BALANCE

ASS'Y.

740

HAIRSPRING

WEOGE

751

DIAL

850

HOUR

HAND

851

MINUTE

HAND

852/1

SWEEP

SECOND

HAND

4020/1

SHUNT BRIDGE

4080

CONTACT SPRING ASS'Y.

4330

INDEX

LEVER

ASS'

Y.

4360

INDEX WHEEL ASS'Y.

5121/1

BALANCE BRIDGE SCREW

54020/1

SHUNT BRIDGE SCREW

9433

SET SPRING

Disassembly

of

Movement

{model

40)

CASE K

CELL

OPENING NOTCH

MOVEMENT COYER

TAB

MOVEMENT

The

first

step

in

removing

the

move-

ment

from

the

cose

is

to

remove

the

cosebock.

Insert

a

knife

blade

in

the

opening

notch

on

the

bezel

and

snap

the

caseback

off.

The

locating

tab

on

the

caseback

is used for

orienta-

tion of

the

back

during

re-assembly.

The

movement

is

protected

by a

movement"

cover

having

access

for

regulation.

The

energy

cell

is

loose

and

may

be

removed

for

testing.

Any

energy

cell

with

a

voltage

of

less

than

1

.5

volts, or

one

which

is

known

to

have

been

in

service

in

excess

of

one

year,

should

be

re-

placed.

Avoid

short

circuiting

of

the

cell by

metallic

connections

between

the

outer

case

and

the

negative

pole

as

this

short

circuit

could

shorten

the

life of

the

cell.

The

movement

cover

may

now

be

re-

moved

.

It

is

held

in

place

by two

tabs

which

seat

in a recess

in

the

bezel.

The

movement

will

stay

with

the

bezel

since

it

can

only

be

removed

through

the

cryst<;~l

side.

40.3

40.4

Disassembly

of

Movement

Cont

1

d.

'

V

.,,.

..

,,

Since

the

only

function

of

the

stem

in

the

Model

40

is

to

stop

the

move-

ment

and

set

the

hands,

the

stem

retention

has

been

simplified by

com-

bining

the

stem

and

setting

pinion

and

providing

a navel

stem

bracket

(495/3).

There

are

no screws

or

levers holding

the

stem.

To

remove

the

stem,

pull

the

stem

into

set

position

maintaining

a

slight

outward

pull.

Next,

place

the

points

of

a

heavy

set

of

tweezers

into

the

space

betwen

one

side

of

the

stem

bracket

and

the

stem

. Now,

gently

release

one

side

of

the

stem

bracket

from

the

stem

by

pushing

the

ear

of

the

stem

bracket

in

the

di-

rection

of

the

arrow. You will

notice

now

that

the

stem

will

tilt

sideways.

While

still

ma

i

ntaining

the

outward

pull,

repeat

the

process

on

the

other

side

of

the

stem.

When

both

sides of

the

stem

bracket

have

thus

been

re-

leased,

the

stem

will

came

out

com-

pletely.

To

replace

the

stem,

firmly press

the

stem

in

place

with a

slight

rotating

motion

so

that

the

stem

pinion

teeth

will

mesh

with

the

minute

wheel

teeth

.

Next,

remove

the

crystal using a

Timex

crystal

lift,

or

a

conventional

crystal

lift.

The

movement

and

re-

flector

ri

ng

can

now be removed

through

the

crystal

side

of

the

bezel.

Take

note

of

the

movement

locating

tabs

in

the

bezel.

When

reinserting

the

movement,

be

certain

that

the

movement

is' in its

proper

position

with

respect

to

these

locating

tabs

otherwise

the

reflector

ring

and

crystal

will

not

seat

properly.

'''Refer to

page

40.

14

for specific

instructions

regarding

reflector ring

Disassembly

of

Movement

Cont

1

d.

DIAL

ASS'Y.

SWEEP

SECOND

HAND~

RETAINING

SPRING

SHUNT

BRIDGE~

SCREW

I

SPR

ING

~

.

MOVEMENT

(D

IAL

SIDE)

SHUNT BRIDGE

L---------

I

__

..

The

in

dis-assembly

of

the

movement

is

to

remove

the

dia l

and

hands:

(a)

remove

the

sweep

second

h

and.

(Minute

and

hour

hands

n

ee

d

not

be

r

emoved.)

(b)

s

traight

en

the

four

tabs

on dial

and

remove

the

dial

assembly

.

To

examine

the

function

of

the

movement,

replace

the

stem

and

place

the

movement

on a

suitable

move-

ment

ring

and

clomp

the

energy

cell

in

pl

ace

with

an

energy

ce

ll

retain-

ing spring. (This

spring

is

available

upon

request

from a

Timex

Material

Soles Division.)

The

negative

pole of

the

energy

ce

ll

must

touch

the

contact

spring

assem-

bly (No.

4080

on

exp

l

oded

vi

ew).

The

positive pole

of

the

energy

cell

is

grounded

to

the

movement.

Never

cause

a

metallic

connection

between

the

insulated

and

uninsuloted

ports

of

the

movement

as

this

short

circuit

could

shorten

the

life

of

the

energy

cell.

The

energy

cell

should

be

removed

before

proceeding

with

further

dis-

assembly

of

the

movement.

Remove

the

shunt

bridge

screw

and

carefully

lift

the

screw

end

of

the

shunt

bridge

from its post.

The

op-

posite

end

of

the

shunt

bridge

is

held

in pl

ace

by a

tab

overlapping

the

plate

.

Shifting

the

screw

end

of

the

shunt

bridge

slightly

to

the

left

(see

arrow)

will

unhook

this

tab.

This

operation

should

be

carefully

car-

ried

out

so

as

not

to

disturb

the

hair-

spring or

balance.

After

the

shunt

bridge

has

been

removed,

the

shunt

bridge

screw

should

be

put

bock

into

place

and

tightened.

40.5

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

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

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.

Disassembly

of

Movement

Cont'd.

BALANCE

STAFF CENTER

BALANCE

CONTACT

IMPULSE

DISC

The

contact

spring

must

be

pointing

exactly

to

the

center

of

the

balance

staff.

It

should

be

centered

horizon-

tally

between

the

impulse disc

and

the

balance

.

The

contact

spring

requires

very

careful

treatment.

Protect

it

from

scratches

and

deforming

and

·

avoid

excessive

bending

while

adjus-

ting.

Do

not

touch

the

contact

area

at

the

end

of

the

spring.

Do

no

rub-

bing,

grinding,

polishing,

etc

., in this

are

a .

In

short,

handle

it

with

the

som

e

care

as

is

used

in

handling

a

hai

rspring.

Th

e

contact

pin,

contact

jewel

and

contact

spring

must

NOT

be

oiled.

The

presence

of

oi

I on

these

parts

would

interrupt

the

flow

of

current

to

the

drive

coi

I.

The

length

of

the

contact

spring

is

fixed

at

the

factory.

No

attempt

should

be

made

to

adjust

this

length.

40.7

Disassembly

of

Movement Cont'd.

BALANCE

BRIDGE

BALANCE BRIDGE

ASS'Y

.

TRAIN WHEEL

BRIDGE

ASS'Y

.

BRIDGE

SCREW

BALANCE

'7

""''"

'

MINUTE

WHEEL

~

ASS'Y

.

DIAL

REST

40.8

Remove

the

two

balance

b r i d g e

screws.

Next,

remove

balance

bridge

assembly

and

the

balance.

(Note:

Be

certain

that

the

shunt

bridge

screw

is

in

place

before

re-

moval of

the

balance

bridge

other-

wise

the

train

wheel

bridge

wi

ll

be

disturbed

.)

Remove

the

shunt

bridge

screw

.

The

train

wheel

bridge

and

dial

rest

may

now

be

removed.

Disassembly

of

Movement

Cont•

d.

The

action

of

the

gear

train

is

as

BANKING EAR

ON

PLATE follows:

BANKING EAR

ON

PLATE

FIGURE

I

MAGNETC

IMPULSE PIN

Figure 1

The

impulse pin on

the

balance,

when

moving clockwise,

engages

with

the

fork on

the

lever

and

moves

the

lever

counterclockwise

.

The

"D"

on

the

lever,

engages

with

the

index

wheel

and

moves

the

index

wheel

forward

approximately

3f4

of

one

tooth.

The

magnets

(A, B

and

C)

attract

the

tips

of

the

index

wheel

teeth

and

move

the

wheel

forward

the

remaining

lj4

tooth.

The

magnet

(Cl

also

attracts

the

draw

lever on

the

index lever

and

holds

the

index

lever in

place

.

Figure 2

If, for

any

reason,

the

index

wheel

is

not

positioned

correctly

by

the

mag-

nets,

"E"

on

the

lever

turns

the

index wheel

to

its

correct

position

so

that

the

of

"D"

(actuated

by a clockwise

rotation

of

FIGURE 2

the

balance)

will

advance

the

index

------------------------~--~

THIRD WHEEL

FRICTION

SPRING

HOUR WHEEL CENTER WHEEL

wheel correctly.

Setting

friction for

the

dial

t(ain

is

provided

by

a

spring

connecting

the

friction pinion

and

the

third

wheel.

The

third

wheel

and

friction

pinion

may

be

separated

by

lifting

the

fric-

tion pinion with

tweezers

.

This

will

unsnap

the

friction

pinion

from

the

friction

spring.

The

friction for

the

dial

frame

is

provided

by

a

spring

connecting

the

friction pinion

and

the

third

wheel.

The

third

wheel

and

friction

pinion

may

be

separated

by

lifting

the

fric-

tion

pinion with

tweezers

.

This

will

unsnap

the

friction

pinion

from

the

friction

spring

.

To

reassemble,

press

the

pinion

firm-

ly

back

into

place

.

It

is

not

necessary

to

remove

the

friction

spring

from

the

third

wheel. 40.9

40.10

Disassembly

of

Movement

Cont'd.

t

RUNNING

POSITION

STOP

POSITION

IMPULSE

DISC

IMPULSE

DISC

The

balance

stop

mechanism

is

purely

mechanical.

In

the

running

position,

the

tip

of

the

stem

butts

ogoinst

the

stop

lever

and

keeps

the

tip

of

the

stop

lever awoy

from

the

balance

impulse disc.

In

the

stop

position

(when

the

stem

is

pulled

out

into

the

set

position),

the

tip

of

the

stop

lever

butts

against

the

impulse disc

on

the

balance,

thus

stopping

the

balance

.

Disassembly

of

Movement

Cont'd

.

010

APPROX.

THICKNESS

OF

SECONDS

WHEEL)

FRICTION

WASHER

A

friction

washer

is

located

between

the

plate

and

the

seconds

wheel. As

shown,

the

washer

is

domed

slightly.

Check

to

see

that

the

washer

has

not

become

damaged

during

disassembly.

Too

much

friction will

cause

too

great

a

drag

on

the

movement

.

Too

little

will

cause

on

erratic

· sweep

second

hand

action

.

A

tab

has

been

provided

on

one

leg

of

the

friction

washer

. This

tab

fits

into

a

slot

on

the

plate

to

prevent

the

friction

washer

from

turning.

40.11

Cleaning

and

Lubricating

The

Timex

Electric

Cleaning

the

Model

40

Movement

\

Timex

has

found,

after

careful

investigation,

that

the

best

way

to

clean

the

movement

is to

disassemble

the

movement

only

to

the

point

of

removing

the

balance

bridge

and

the

balance.

The

balance

should

be

cleaned

sepa

rately

in a

small

ja

r

to

ovoid

damage

to

the

coil.

The

coil

is

composed

of

ultra-fine

copper

wire

and

should

not

be

handled

with

tweeers

or

other

s

harp

in

st

ruments.

Only

standard

watch

cleaning

solutions

should

be

used

throughout

.

Particles

adhering

to

the

magnet

con

be

removed

with

Scotch

tope.

Lubricating

the

Model

40

Movement

The

movement

should

be

re-lubricoted

in

the

normal

manner

using

only

hi-

grade

watch

oils (oils

used

in

factory

assembly

is Elgin

M56

b).

The

balance

bearings

should

be

filled

1

12

full

before

inserting

the

balance.

Other

lubricating

points

ore:

!- Impulse pin or fork

slot

2-lndex

lever pivots

3-

lndex

wheel

teeth

4-

AII

wheel p

iv

ots

5-

The

jun

ction

of

the

center

wheel

pinion

and

fraction

washer

6-

The

junction

between

the

minute

wheel

and

dial

rest

Apply

grease

(Hami

lton PML

type)

to

the

stem

where

it

is

held

by

the

stem

brocket.

DO

NOT

lubricate

contact

spring

or

contact

on

the

balance.

DO

NOT

use

oil or

greases

containing

silicone.

40.12A

Reassembly

of

Movement (model

40)

BALANCE ENDSHAKE

ADJUSTING

SCREW

I

LIGHT PERMANENT CONTACT

SWEEP SECOND

STAFF

~;

5

If

the

movement

is

token

fully

aport,

the

correct

order

of

train

assembly

is:

!-Third

Wheel''

2-Friction

Washer

3-lndex

Lever

4-lndex

Wheel

5-Seconds

Wheel

6-

Stem

Brocket

7-Stop

Lever

8-

Contoct

Spring

9-

Train

Wheel

Bridge

and

Screw

''

The

third

wheel

and

friction pinion

should

be

replaced

in

the

following

manner:

First,

place

the

friction

pinion (pinion side down)

on

a

flat

anvil-

the

movement

plate

over

the

friction

pinion-fin-

ally

snap

the

third

wheel,

together

with friction spring,

over

the

post

of

the

friction pinion. This

method

will

ovoid

damage

to

the

hole in

the

movement

plate

. (See

illustration

on

Page

40.9).

Balance

Endshoke

The

balance

bridge

screw

on

the

9

o'clock

side serves

to

adjust

the

bal-

ance

endshqke.

Tightening

this

screw

will

reduce

the

balance

endshoke.

Use

caution

while

adjusting

the

endshoke

to

ovoid

damage

to

the

points

of

the

bo

lance

staff.

Inspect

the

hairspring

to

be

certain

that

it is properly

adjusted.

As

shown,

the

hairspring

should

be

in

light

per

-

manent

contact

with

the

inside

edge

of

the

regulator

slot

.

The

hairspring

is

held

in

this

position

by

a

tob

ex-

tending

from

the

regulator

.

When

replacing

the

dial as

sembly,

pre-position

the

hands

to

12

:00

be-

fore

inserting

the

tabs

on

the

dial

into

the

plate

. Bend

tabs

to

secure

dial.

Replace

the

sweep

second

hand

by

driving

it

just

below

the

end

of

the

sweep

second

staff

as

shown

in

the

diagram.

Be

certain

the

sweep

hand

is

set

below

the chamfer

on

the

top

of

the

staff.

40.

13

"FLAT"

RING

ILL. NO.I

ILL.

NO.2

RING

40.14

ILL.

N0.3

Model

40

8

41

Reflector

Rings

BEZEL

The

first

TIMEX

Model

40

ond

41

movements

were

produced

using

o

plai,n FLAT

Reflector

Ring (

Illustra-

tion

: No. 1 ) .

TIMEX

later

changed

the

Reflector

Ring

to

a SERRATED

style

(

lllustra-

~~-·-IZ!il

tion

No.

2)

.

DIAL

PLATE

If

the

watch

being

serviced

contains

a FLAT

Reflector

Ring,

it

should

be

replaced

with

a SERRATED

Reflector

Ring

(TIMEX

part

number

930/3)

.

Beginning

in

early

1971,

TIMEX

fur-

ther

modified

the

Reflector

Ring

to

a

thin

"CUP"

style

(Illustration

No

.

3)

.

This

style

must

be

used

ONLY

in

con-

junction

with

the

FLANGE

type

dial.

THE

"CUP"

REFLECTOR RING

CANNOT

BE

USED

ON

A DIAL

HAVING

NO FLANGE.

THE

SERRATED REFLECTOR

RING

CANNOT

BE

USED

ON

A

FLANGE TYPE DIAL.

When

ordering,

please

specify

which

type

is

required,

i.e.,

CUP

TYPE

or

SERRATED TYPE.

Timex 40 User manual

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