Argus C3, C4 Shutter Service Manuals

THE BUILT-IN

SHUTTER

The escopements

fit

to

problem

spoce. And

into the cromped

in the design of ony

in most

the shutter mechonism

lens mount.

ingenuityof thedesigners

The

ond

troins

other

housing. Even the

for exomple

toke best

other shutters follow this circulor

--

odvontoge of the existing

for complete shutter

movement.

So ihe ports in the modulor

smqll in orderto precision

ond the shutter occurocy is

--

you hove

of the shutters exomined in

fits

poris thot ore

moin

moy be

o ringwhich

operotion with o very minimum

fit the ovoiloble spoce.

fine croftsmonship os well os

NOTE:

ond the Prontor

Shutters such os the

SVS

thot is, shutters mode byo

used on

be

controst to the modulor

In

comeros of mony different

studied so forore cleverly

quorters oround the lens. A complox

shutter

into o housing

curved to follow the

lever

--

shutters you've

good

qre

exomples

single monufociurer

shutter, the

is integrolwiththecomero itself --

porticulor

extremely ond

suchos the focol-plone

comero in

simple

Brownie

Reflex comeros. Or, they moy be

which it is used.

such os you studied in the Kodok lnstomotic

--

shutters youwill

designcd

proper

is

of ovoiloblc

use

hos produced

lorger models of the Compur,

in

fits oround the lens

escopement

shope of the

borrel

spoce. Moin levers in mony

pottern,

ond

usuolly

omount of

studied

Smoll ports require

frequently the

design.

Synchro-Compur

of modulor

result of

00-MXV

shutters

which moy

mokes.

BUILT-lN

ond, os such, is unique

Built-in

shutters moy

quite

exomine

in

SHUTTER

complex

future lessons.

lessons,

os the

geor

provide

must be

high

--

to the

be

--

i

io

The built-in

spoce

within to the circulor confines porotively lorge, rugged,

shutter tokes odvonioge

the comero body.

oround the lens,

ond simple.

smoll ond precise while the pocket-size

ln

built-in

moy be locoted

elements

mechonisms

proporiions.

this lesson,

leof-type

--

shuiter. And you'll

even though

ore spreod

you will exomine three voriotions

either behind

the

out

behind

2

of the lorge omount

Since the

ports

they con

the

Or,

comero itself is

see how the shutfer blodes

the lensor between

shutter

blode driving

lens in the comero body.

the

ore not restricted

com-

mode

be

ports

scoled

moy

remoin

down

of the

the lens

timing

ond

of

io

The

using o built-in

o third

shutter mechonism.

thot

of the volume

is inexpensive

dependoble

Argus C-3

R ELEASE

BUTTON

RANGEF INDER

DISC

SETT

LEVER

FILM WIND

KNOB

behind-the-lensshutter.

three

--

one of the most

-

ING

C-3,

Argus

good exomple of

2,

Fig .

of

The

to monufocture,

foctors

o

is

the comero body

result of

the Argus design

which

populor 35mm comeros ever designed.

theArgusC-3,

ln

is used

to service, ond

eosy contributed

o

35mm

comero

to house the

is o

to moking

olmost

shutter

quite

ihe

FIGURE

SPEED KNOB

2

*

RANGEF INDER

WINDOW

VIEWF INDER

WINDOW

The

3

Argus

releose

FIGURE

ever ond the

KNOB--operotes

ARGUS

FRONT

hos two controls in

C-3

button. One

o com to determine

C-3

PLATE

oddition

of these controls

omount of retord, Fig.3.

the

POSITIONS

to the

--the

setting

SPEED

3

R ELEASE

BUTTON

COUNTER

DIAL

F

ILM

WIND

KNOB

FIGURE 4

The

other

releose

control

buiton

permits

from

operotion

"bulb"

(instontoneous)to

"l"

--

"B"

iust

(bulb),

turn the

Fig. 4.

1

knurled

Notice

colibrotions 4 rhrough 8. The

colled the

method

Argus C-3 modeIs ore colibrofed in the conventionol

o second.

fol

lowing

REMOVING

The

vory only

setscrew.

o

by

lever in o counterclockwise

But

models

locoted immedioiely under

setting lever in ploce.

os you'llsee

the setting lever counterclockwise to cock the shutter

nut ond the setting lever

iom

thot the speed

"Motchmoticr"

or colibroting the shuiter speeds ond the

The numberson the Motchmqtic

shutter

front

slightly.

speeds:

FRONT PLATE

THE

plote

ossemblies of the

ln the older models, the

Just

knob, Fig. 3,

porticulor

o nome which refers to

l/300 second

8

--

7

--

6

--

5

--

4

--

loosen the setscrew ond

1/125

l/60

l/30

1/10

second second second

second.

IN THE

direction.

the setting lever setscrew

suchqs the comero

--

o

in

moment)

illustroted. lnsteod,

the setting

setting lever post

The

hos o left-hond threod. So

rightly ogoinst one onother

more

contoins the number

Argus C-3 illusiroted is

f/stops.

speed knob refer to the

ARGUS

vorious

is eliminoted

lever,

C-3

Argus

setting

C-3 lever is held

unscrew

in the loter

o

JAM NUT

Fig.

5

(on

--

the moin lever,

the

unique

Other

frocfions of

comeros

the setting

--

holds the

moving

the

binds

4

JAM NUT

';-"-.

,ut"

,w

*J

FIGURE

ond turn the

--

Then, unscrew

clockwise

off the

'

the

the leotherette

5

the newer-style

Hold

iom

nut

setting lever stof ionory wif h your f

counterclockwise

you ore now moving the

the setting lever

direction

nut in the

iom

CAUTION: Do

the

during

ploce on the

in

speed

knob

colibrotion

visible

exposed

movement

side of the speed

lose com. You con, however,

in

front

the timing

f

igures

Five or

plote

--

screw. The

six

--ond,

some

remove the Argus C-3 speed knob

not

froni plote

isossembly

d

front plote.

retoining

plote.

screw

But

ond there's olwoys o temptotion of the retord

knob.

between

7 ond

8.

screws

to the comero body. These

covering the

(the

iom

ofter removing

direction.

in other models,

speed

section

So

the

see

numberdepending

front plote,

in figure 3. So corefully lift the

of the front

or

shorply creosing the

plote with your

leotherette.

bench

with

o thin-heoded wrench

owoy from the setting lever.

nut

from

is covered by

post

its

the

--

the Motchmotic,

ln

by turning it in o

setting

the

speed

knob

the cemented

lever,

remo ins

the screw is

to remove on

com

by

speed

the

which

--

is ottoched to the

--

removing the screw, you

knob

properspeed

os indicoted by

leotherette ot the

knife

controls the

ond

ihe speed

com

on the model) reioin

screws ore underneoth

four

iry

ovoid

to

--

ingers

turn

the

bock

timing

the orrows

corners

teoring

5

Another screw

plote

some

window.

moving the leotherette

or cut the leotherette os indicoted by Moke your cut very corefully

knife

olmosf

be

indicoted

--os

models,

You

when you

--

undetectoble.

there

con reoch the lower

locoted ot the bottom

is

the doshed

by

o sixth screw odiocenf

is

--either

loter recement

orrow in

screw without completely

lift the bottomof

with

the

3.

the fronl

And, in

center of

figure

to the rongefinder

the leotherette

the

doshed

shorp point of your

leotherette,

orrow, Fig. 3.

the cut

re-

bench

will

sixth

the

lf

the rongefinder

by

heoded

the

FOLLOWER which

FIGURE

screwswhich

front plote

FRONT'

PLATE

SCREW

retoining screw is used,

6

CAUTION: The

you've removed

once

lens to

prevent

covity to the right of

you con cut the leotherette

window,

hold the frontplote. Then, corefully

--

remoins

front

loss

Fig. 6. Remove oll of the

be coreful

wiih the

lens

the front

or

domoge --the

the rongefinder ossembly,

youdon'tdropouttheCAM

front plote, Fig. 7.

for

theeyepiece

plote.

lf

lens sits in the

so,

moy

lift out

be

round

Fig.

flot-

lift off

loose

the

10.

Figure 7 shows the inside of

see

follower fits into the

hond corner of the comero

of the

olso

speed

the

linkoge

pointed

com

between

out in

ond the com follower. The

hole

the speed com ond the

figure 9.

6

the

in

body,

the.front

BELL CRANK

plote--here, you con

(in

Fig. 9). The bell

speedsescopement,

the lower right-

the com

on

cronk is

port

J

CAM

SPEED

CAM

FOLLOWER

PIN ON

CAM

FOLLOWER

,$

FIGURE

7

SHUTTER SET

8

SHUTTER

SET

TO

l/300

l/10

SECOND

("8"

ON

i$rylr

("4"

ON

MATCHMATTC)

MATCHMATIC)

You'll

position when the comero is

second), Fig.7.

when the

notice thot

And the com

shutter

is

set to the

Fig. 8.

thecomfol lower is otits highest

set to thefostest shutterspeed

fol

lower is ot its

slowest shutterspeed

lowest position

(lrll0second),

(l/300

OPERATION OF THE ARGUS C-3

SHUTTER

The moin lever in the

SHUTTLECOCK ond o lons

The

SHUTTLECOCK RIBBON

tension-type

MAINSPRING

SHI.JTTLECOCK

SHUTTLECOCK

RIBBON

mo inspring.

MAIN LEVER

ESCAPEMENT

CRANK

BELL

FIGURE'

To cock

wise direction

moin lever is then

of the RELEASE

FRONT LENS

EYEPIECE

THIS CAVITY

the shutter, rotote the moin lever in

your finger

with

lotched in the

PLUNGER, Fis.

FOR

SITS

IN

--

Argus

C-3 is o multiple

phosphor

con

nect

.

os shown in

--

cocked

I l.

bronze

the moin

o counterclock-

figure

position

bythe

com, Fig. 9.

ribbon

--

the

levertothe

10.

The

lowerend

COCKING

ROTATION

FIGURE

1O

Depressing

the

to free the moin

from left to right.

8

releose

lever.

Now,

cousing the

pushes the reIeose

button

the moinspring

lever to rotote ino clockwise

moin

plungerdown

pulls the shuttlecock

CRANK

SPRING

END

RELEASE

PLUNGER

RETARD

WIRE

FIGURE

BELL

LOWER

OF

LEVER

LINK

11

SHUTTER COCKED

direction. The

contocts o lug on the

blodes

--

cleorly ofter

the

blode

blodes.

Since you've removed the front

the speed comond the com fostest

speed

spring, Fig.

counterclockwise

Setting slower shutter

clockwise

down,

Notice

cronk fo the RETARD LEVER in the

holds the

the lobeot the bottomof

speeds, the bell

first

under iis own the

the lobe

of the retord. lever

ond the

ln its

geor

So

in

(on

the

shuttlecock ossembly,

operoting ring to open the shutier

you'll

we remove the

operoting

blode

oble tosee the oction of theshuttlecockmore

be

shutter

ring, not yet visible, then closes the

follower--the shutternowdeliversthe

(lrl300

second). The

ll, holdsthebell cronkoll thewoy inthe

direction

com follower in turn rototes the

figure ll

present position

geor

first

segmenf

cronk

segmenf

. The

spring

first

the

the moin

posifion

--

.

speeds pushes

speed com pushes

the

--

o long

thot

--

V\OO

(in

the speeds escopement)owoy from'

the

moin

pulls

the retord lever owoy

geor

first

tension,

geor

lever)

os simuloted in

segment)

during

of the bell cronk determines

ond the

retord

during

blode

plote

reoson

WIRE

speeds

second

lever.

segment then turns clockwise,

in the

is

the releose cycle.

lever decides

its releose trovel,

ossembly. A spring on

shutter

ond, olong with

--

thqt the

is

the

bell

the

com follower

bell

LINK connects

escopement.

the retord

--

os youselecf slower

But

figure 12

position

cronk

bell

cronk

in

cronk

the bell

lever

from the

now,

--

to intercept

position

the

how for the

it,

o

.

9

LOWER

LOBE

ON

MAIN

LEVER

PIN ON

F IRST GEAR

SEGMENT

FIGURE

first

the first geor segment contoct the slower the

on odiustmentpoint

ter

12

geor

segment rototes in o clockwise direction. The

clockwise, the longer it remoins

moves

with the moin lever lobe during

resulting shutter speed.

pivots

The bell

cronk

onon eccentric

fortheshutter speeds.

speeds

replocing the fronf plote

ofter

the releose cycle

beoring

You'll

--

which provides

odiust the

o hole through

front plote ollows you to reoch the eccentric beoring,

see o little loter.

see

con

You

onything exomined in

thot the ArgusC-3

previous sysfems.

of the whole design is the time

othershutters werve

ln

speeds escopement slows

then holds the

in theArgus

Yet

os the

iust

the blode-opening slowly the

The

shutterspeed

blodes

blodesstort blodes

position

is criticol

inodiusting theescopemenf

escopement hos o sliding

screws

to odiust

you should

shown in f igure I3,

position.

its

note:

discussed,

down

fully

open

C-3, the moin

toopen. So the retord is

time

--the

open.

of the

on the firstgeorsegmentot

coreful

--

during

odIustment

you con slide

Referring

retord system is

the most unusuol

But

ot

the blodesopen

theretord is introduced.

which

the moin lever

for the required length of time.

leverstrikes thefirst

slower the shutter speed, the more

observotion now will help you

reossembly.

ofter loosening

--

complete

the

figure

to

13, here's the timing

quite

fully

the escopement

--

geor

introducedduring

is, thespeeds

Thot

foriher

in

ond

--

shut-

the

os

you'll

unlike

port

before

the

segment

theslowest

the two

escopement

10

With the

the moin

ond

moin

the

segment

the moin

first

the

SPEEDS

ESCAPEMENT

SCREWS

ON

F IRSI

GEAR

SEGMENI

first

lever

but,

--

lever

geor

segment

of the

the cocked

some time, comPlete

possible

lever in

should contoct

must be

segment.

a

in the

uo-

slowest-speed

position, the lobe

pin on the

the

without

interference

position

geor

first

rototion

from

on

"t

,,

'(-

,f

r

FIGURE

"B"

Turning

the

shutier, the blqdesopen

FrcuRE

13

obtoin

To

colibrotion

releose button

the

poiition

shown in

END

RELEASE

PLUNGER

14

"bulb"

oligns wiih

OF

SHUTTER

oction,

the index

to "B"

figure

to the

COCKED,

rotote

rototes

14.

Now,

full-open

SET TO

releose button

the

dot on

releose

the

when

position

"BULB"

until its

the comero body.

plunger to

you re.leo-se

--butthe

the

flotted

11

end of the releose

15.

Fig;

shuttlecock

When

the shuttlecock

Consequently, the moin lever

hos

you let

moin lever--so

RELFA

PLUNGER

BLOCKS

MAIN

LEVER

up on the releose

moves

5E

HERE

plunger

moved

cotches the

for

enough for

button, the releose pIunger frees

the mqin levercompletes

post

the lug

on the

upper lug

is

shutter

the

operoting

blode

on the moin lever,

orrested

before

blodes to close.

its rotoiion ond

ring.

the

FIGURE

DISASSEMBLY

screws

you

Lngoged

FIGURE

15 SHUTTER HELD

Remove

shown in

see the

con

the

by

SHUTTER

BLADE

ASSEMBLY

RETAINING

SCREWS

16

t2

OF THE

the

ARGUS

shutter blode

16. Now,

figure

spring-looded

shuttleiockossembly

C-3

ON

SHUTTER

OPEN

ossembly

on ihe bock

blode

to open

"BULB"

toking

by

operoting

the blodes,

out

of the

ring

the three

ossembly,

thot

lug

Fig.17

is

'

BLADE

OPERATING

RING

SPRING

BLADE

OPERATING

RING

LUG

FIGURE

During

SHUTTLECOCK LATCH, Fig.

blode

cock lotch engoges

17

shuttlecock is olso

The

the cocking cycle,

operoting ring lug

cleorly

the pivoting oction of the spring-looded

--but

the lug

position.

SHUTTLECOCK

FIGURE

LATCH

18

visible

18, ollows the

ot this time, Fig.

to

lotch

byposs

on fhe releose cycle, the shuttle-

ond

drives

the

blodes

to the open

18.

the

13

Now, disconnect

the two

escopement.

screws shown in figure

the wire link

l9

from the retord lever.

Iift out the entire

ond

Remove

speeds

Disconneci

the two tension springs

ond the moinspring--from

Remove the mqin

post,

Fig.

SPRING

HOOKING

POST

RELEASE

PLUNGER

PIN SCREW

RANGEFINDER

leverby toking out

19.

MAIN LEVER

SCREW

SPEEDS

ESCAPEMENT

RETAINING

SCREWS

RELEASE

PLUNGER

E NT

DET

SETSCREW

post on the comero

the

the screw

the

--

through its

bell

body,

cronk

Fig.

threoded

spring

19.

FIGURE 20

14

remove

To

end ofthe

the

ond o boll detent on the

either

moved

cqn

rototing

the

determines

now remove

the

comero body,

portof

or

"l"

covity.

releose

remoin inside

plunger,

the releose

the

f he

the

position;

"B"

omount of

ond the boll

spring

first toke

20

Fig.

--butbe

covity.

the

plungerossembly,

ond

spring tension

out the

coreful:

The boll

the setscrew

deteni

on

the

from

setscrew

o spring

detent

octs

holding it

iust

re-

You

you

detent.

the setscrew

ot

in

Remove

I9, ond lift

complete unit

As we mentioned

beoring.

screwr-olso

eccentric beoring

cronk,

bell

lifi out

the bross

out the

which does

eccentric

The

seen in figure

remove

bell

cronk

the

ond

the

ihe eccentric beoring

BELL

CRANK

ECCENTRIC

BEARING

CRANK

BELL

RETAINING

SCREW

You

21

rorely

will

hove

iust

ond odiustment

done --

FIGURE

thqn we

disossembly

figure I9,'is covered

rongefinder

ot this

time.

releose

not

eorlier,

beoring

ot the

screw

plunger. The

require

the

bell

pointed

is

21, boih

further disossembly.

cronk

holds

retoins the bell

screw ond the

ond the wire

reossembly

on

hove to disossemble

ot leost

of

loter lesson

in o

link

to time

to service

the rongefinder,

front of

cronk. To

the comerq,

releose

pivots on

out in

odiustment

the

plunger is

on eccentric

figure 21

toke out

eccentric beoring.

--

the shutter

speeds.

hove to odiust

you'll

.

comero

the

ovoid disturbing

--

ony

shutter. The

the

pointed out

Fig.

the

i

of the

the

Now,

.

furth.er

.in

the

o

REASSEMBLY OF THE

Reploce the bell

seot the eccentric beoring

Then,

ARGUS C-3

qnd

cronk

ond

SHUTTER

the wire

reploce the

link os one

retoining screw

ossembly.

l5

sure theeccentricshoulder

moke

--

the hole in the bell

to ossure thot the bell

cronk. While

pivots freely.

cronk

on the beoring

tightening

the

possesihrough

screw, check

the releose

lnsert

of the comero

receives the bross

Then,

ond

the

ond then the spring, into thecovityottheendof

reploce the

The releose

"l"

releose

tighten the

Then, positions

Before

exomine the

lever,

Fig.

within

q

--

positions

plunger

of the releose

replocing

ioint

22.

slot

in the body

shuttlecock ribbon is

Argus C-3.

BODY

MAIN

SHUTTLECOCK

SOLDER

OF

LEVER

RIBBON

JOINT

plungerossembly

the elongoted

screw) must be

pin screw from

bross

plunger should now

remember, the boll detent

--

ot either

setscrew

plunger.

the

between the

con seethot theshuttlecockribbon

You

slot in the.

setting. Ploce

l you feel the

unti

lever ond

moin

shuttlecock

of the moin lever.

one of

your

-i

through its

releose

front of the comero.

to the

the front of the

rotole f reely between

first the

two

shuttlecock ossembly,

ribbon ond the moin

common repoirs in the

more

r:T

holeot the

plunger

comero.

the

ond spring hold

boll detent,

thecomero body.

sol

id

ick-stop"

"cl

issoldered

Replocing o

top

(which

"B"

broken

FIGURE

Hondle the

22

UNDERSIDE

shuttlecock ribbon very corefully

the moin lever into shuttlecock ribbon

operotion.

lever retoining

post.

releosing

Hook the

comero

When the

screw ond hook the end of themoinspring

Test the movement

the shutter

end of the bell

body. Now,

16

LEVER

the

spring

LEVER

moin

plocing o

foil

lever

over the

OF MAIN

position. Accidentolly

could couse

ossembly is fully seoted, reploce

the metol to

of

severol times.

cronk

cock the

shutter ond seot the speedsescope-

os you lower

kink in

during

the

bycocking

post on the

shutfer

fhe

moin

over its

the

ond

ment in oosition. Moke

the retord

on the

stud

holding the speeds

lever

firsi

(with

its

geor

segment. Then,

escopement.

sure thot both hole end down)

the moin lever

ore to the right

reploce the

two

lobe ond

of the

screws

Before

ment

screws

tightening

to the

position shown in

to hold the

ond releosing

geor

segment must

shutter. When

the

the end

on the blode

of the wire

As you

seot operoting ring is toword

the two

odiustment. Check

shutter severol times

th-e

slip post the moin lever lobe

not

you're

link to the

shutter

the

screws,

figure

sure the retord

hole in the retord lever.

blode

reploce the three retoining screws

shutter

bottom

ADJUSTMENTS ON THE

of the

We mentioned

eorl

Actuolly, the moin lever is

relotionships of these ports to one

on reossembly.

lever, Fig.

piece

one

port of

the morn

SYNC CAM

RELEASE CAM

The

23, hold

-- but by loosening

lever.

ossembly.

blode

ARGUS

thot the moin

ier

in three

two screws

sections of

the

provided oi

odiust the speeds escoPe-

13.

yourodiustment bycocking

--

tighten the two

Then,

the stud on

os you

position is correct,

ossembly, moke

sure the stud

the topof the comero. Then,

--

C-3

Iong screw

the

MAIN

LEVER

goes

lever is o multiple

seporote ports

onother

require odiustment

moy

the

front

--

of the moin

the moin lever together os

screws,

you con reposition

the first

cock

hook

to the

com.

ond the

eoch

4

xlt

t,\

,,u

hp"

!J

-it

f.\

-f

FIXED

CONTACT

LUG ON

SYNC

MOVABLE

CONTACT

MAIN

ADJUSTMENT

SYNC

CAM

SYNC

LEVER

5CREW5

The three sections

which

secures

which engoges

segment,

sync

loosen

sync com,

$

I

the shutter

I

r""J

the shufter ond

blodes

odiustmenl, the shutter

"bulb,

open on

the releose plunger

open

"bulb"

ollows

releose com. releose

(clockwise)

screws.

cock ribbon

shuttlecock

Fig.23; ond

contocts,

both of the screws

iust

First, let's

ond set

should

or will open

"

Soy,

for

"bulb"

ing

.

correction

The

ond loosen

the

body

plunger,

until the

As the

moves

to open the

of the

ihe shuttlecock

the releose

the SYNC

Fig. 23.

loosen f he

check the

the releose

hold

remoin fully

exqmple, thot

this

--

before

the two

of the

Now,

ollow

body

To odiust

shown

one screw

odiustment

the releose

open.

blodes either will foil to remoin

only port

meons thot the

rototing

is to continue

screws,

mqin lever to turn seporotely

while the releose

the

body

blodes ore fully open

of ihe

moin lever turns clockwise,

forther

blodes the odditionol omount.

mqin lever

ribbon,

plunger

Fig. 22;

ond

CAM which

the releose

in figure

indicoted

plunger

button depressed But if

woy.

the shutter

forenough

holding the shutter

Fig.

of ihe

to

the right

ore: the

the

23.

by

of the

releose

to

"bulb.

the

releose com

blodes remqin

moin lever is

23

loosening

--

cqm remoins held

moin lever to roiote slowly

--then,

--ond

mqin

the RELEASE

on the first geor

closes

the internol

com,

you

But to odiust

the

doshed orrow.

com.

releose

Now,

"

the shutter

--

is out of

open on

poriiolly

blocked by

toollow full

open on

the

from the

retighten the

the shuttle-

thoi ollows

BODY

CAM

must

fhe

Cock

blode

screws

by the

the'

other

The

ond close

Consequenf

sef fo

the

releose

before

ly, ihe shutfer

"bulb.

body of the

"

com.

Once you've

check the

screws

doesn't

operotion

lug on the sync

the

sync conioct. contoct

timing of

in figure 23 holds

disturb the releose

Compored

of theArgus C-3 flosh sync

releose

(clockwise)

ogoinst

18

symptom

fhe releose

The correction

of molodiustment

com

isqrrested

delivers on

to

is

instonfoneous speed when

loosen the two screws

moin lever counterclockwise

odiusted

the

some

to

com in figure 23

sync

The

fixed

the

the releose

sync

com. Since

the sync

com

com, od[usting

odiustment.

of the other shutters

is

os.the

direction,

com lug then pushes

sync

--

this lug strikes the

contoct to fire the flosh.

is thot

the blodes open

by the releose plunger.

ond turn

in relotion to the

com of

only one of

"bulbr

the

you

"

the two

flosh sync

you've studied. the

quite

simple.

moin lever revolves

Locote the

movoble

the'movoble sync

con

in

By

synccom

the

yo,

houu

yo,

"on

sync.

Most

close to

octuql deloy

The

ful I

the

his Argus

-open

is turn

reoch the

loosening

tochongethe

o wide

chonge

fire the

odiustment

the

Argus C-3ts

flosh

is then

position. But

C-3 to

the

full-open

"X"sync

sync com until

sync com

the

sync

ore set

iust

position.

screw, Fig.23,

ronge

oll ihe

for

if your

which

--

"F"

the

it

customer

timeot

deloy

before

the time

forelectronic

contocts

the

you con

flosh is

the

iust

woy

sync

--thot

shutter

turning

from

blodes

wonts you

by

tokes for the blodes

flosh, oll

fired. Here,

the

sync to

"F"

the contocts

is,

stort toopen.

you hoveto do

close when

move

sync com,

"X"

to reoch

to convert

the blodes

FRONT

REPLACING

SHUTTER SPEEDS IN

THE

When either

removed,

leotherette reveol

you con.reoch

disc,

FIGURE 24

Set the

fit the com

ond

THE

the

you must

from the

the inspection

speed

com

follower

speeds escopement

reodiust

Iower

disc,

the eccentric

ot the highest

plote on the comero body hole in the

cronk hole. Then,

front plote to

reploce

PLATE AND

ARGUS C-3

THE

shufter

the

right-hond

24.

Fig.

beoring

position,

in

--you

con work

fit the

com follower

screws holding the

the

ADJUSTING

or the

bell

speeds.

cornerof

By

speed

the

removing

the

on

(for

eose of ol

Fig.7. Now,

through the

pin into the bell

hos

cronk

Strip

been

bock

front plote to

the inspection

cronk.

bell

Gx;s

\J

ignment)

seot the front

inspection

plote

front

the

t'q

--

19

the long

screw, if there

is one, goesbeside

the rongefinder

window.

Depress the releose

releosed position.

the setscrew-type

type hos o

type,

bock off the setting

25,

ond tighten

nut

iom

turn the setting

the.setting setting

ioT

underside

left-hond

turn the setting

the setscrew.

if you're

But

in o counterclockwisedirection

lever

nut

clockwrse

of

insfolling the

lever

to

position,

in

the setting

button to

reploce

Now,

hos o right-hond

threod.

lever

until

oll the woy

l0:30

o'cloc!,

use o

--

lever.

moke sure

the setting

you're

lf

clockwise os fqr

it

iom-nut

down to

thin-heoded

until

the

threod,

points

os foros

Ftg.

iom

the shutter

lever

while

instolling

os

it will

to l0:30

type, first

it willgo.

the

iom

25. While

wrench

nut

is tightogoinst

is

in the

remember,

--

the

iom-nui

the seiscrew-

go.

Then,

o'clock,

screw

nut.

holding

Fig.

on the

Then,

Bock off

to'turn

the the fhe

FIGURE

by there

troce

(1/300.second).

down

ollow

the sound

mustodiust

You cqn

listening

iust

should

of

Cock

the

you

lf

25

now

be no retord

retord

the shutter

moin lever's

moin lever

of the

con

the eccentric

20

TIMING

moke o foirlyoccuroteodiustmentof

to the

ot the

Now, while

retord

detect

OF SETTING

retordoction.

oction

At the'fostest

ond

--

next-to-the-highest

ond

set

the speed

restrqining

rototion.,

to

run slowly

retord

beoring.

push

t6e

through

engogement

vvorking

LEVER

there should

speed.

knob to the fostest

the setting

releose

al

throughthe

shutterspeed,

lever

b-utton.

its cycle,

l/3OO

second,

the speeds

be

iust

speed

to'slow

As you

listen'for

you

inspection

o

hole in

eccentric

retord

the

beoring.

octionottf,e

next-to-the-h

plote, loosen

front

ighest

Set the

fostest

speed.

the bell

cronk

eccentric beoring

speed, ond

iust

screw

you con

so

o troceof

ond turn the

heor no

ot the

retord

you con'f

if

But

you

beoring,

I ength.

inglhe

o iough

moy

Shorten

link

wire

odiustment

fine odiustments

When

you're sure everything

the leotherette.

purpose. Applyo

this

comero body

cement

evenly

of

leotherette.

ARGUS

THE

A more

shutter

C-4 beors

studied.

ond'the bock

to dry until

--

"lumps"

C-4

refined

the Argus C'4,

is

liftle

couNTERBL'fl

WIND KNOB

get

enough

hove to bend

the wi re I ink

ing

provides

by

Pliobond,

for the

turning

ihin

more

shutter

the

o rubber-bose cement.

filmof

of

focky. Be

it is

of excessive

Then,

press the

SHUTTER

comero using

Fig.

other resemblonce

dffi-,S:

odiustment

wire link

the

prov ides

out of

to chonge

I ess retord,.

retord. Bending

speeds

bell

is working

Pliobond to both

cronk

--

lever

the leotherette --

sure your

cemenf

con

leotherette

domoge

the eccenfric

ond I engthen -

the wire

you con

eccentric.

properly, recement

works well

surfoces--the

ond ollow the

cement is

to the comero body.

the built-in behind-the-lens

26.

Bui

to

shutter in

the

the C-3 design

its.effective

link.is

then moke

opplied,

certoin

.types

the Argus

you

for

iust

RELEASE

FOCUSING RING

PLUNGER

RANGEF

SPEED KNOB

REWIND

FIGURE

INDER

DISC

KNOB

26

ARGUS C-4

other

Three

we find

rongefinder.

chongeoble lenses;

Argus comeros

in the C-4.

The Argus

line, reploces the

ropid-wind

lever.

use the some shutter

The Argus 2l

C-44

ond the Argus

iust

odds

the feoture

C-44R, the top

wind knob wifh the

design os

locks the

built-in

of inter-

of the

more-convenient

REMOVING

Reoching the

stroightforword

here.

the

seot knob

First, remove the screw holding the wind knob. Lift off

wind knob

(underneoth

seot ond

Tokeoff

toke out the two screws

ARGUS C-4 SHUTTER ASSEMBLY

THE

built-in

disossembly.

ond tokeout

the wind knob).

the bross wind

the

rewind knob

One screw holds the film

ond lift off

underneoth the spring)

wires ore soldered,

fheir color

the diol--the wosher

film

con then

Lift the top

codes

be removed.

cover

--then,

Fig. 27.

top cover plote. Lift

rewind shoft, Fig. 27.

UPPER

GEAR

TRAIN

ASSEMBLY

SPACER

AROUND

REWIND

SHAFT

Argus

So

we'll

the two screws

shoft

shutter

C-4

iust

involves o

outline the

holding

con now lift off the wind

You

with its compression spring.

byremoving itscenterscrew.

holding the spoceroround

counter

plote

unsolderthe

counter

diol

high

Note

diol.

ond compression spring, sitting

(with

the wosher

enough to see

the posiiions

threewires ond remove lhe

the

Remove

off the loose spocer which sits

very

procedure

thewind knob

Now

rewind shoft.

screw

the

on top of the

where the

of the wires

oround the

sync

by

GREEN

WIRE

WHITE

wtRE

WIRE

BLACK

(coMMoN)

FIGURE 27

22

(M]

(x)

screw still

one

Only

ot

Fig. 27 holding

through

mo in ing

ossembly in

which influences

if

too deep.

,

the wind leverseot

the upper

the comero winds

wind-knob

the

screw,

position

holds the upper

end of the

(which

geor

troin ossembly. By

you con slide the complete upper

this is

--

the

too hord, the depth of engogement moy be

"feel"

of the wind

pomero

you removed eorlier)olso

o

depth-of-engogementodiustment

geqr

body. The

loosening the re-

iust

stroke.

ossembly,

troin

two screws

geor

other words,

ln

threod

troin

L_

(or

of

o note

Moke

troin ossembly

--

scribe) the

then, toke out the one

off the complete ossembly. The

sits collor-up over the

plote.

NOTE: Turnins

the iprocket through the upper

wind knob

removed, you con cock the

turning the sprocket. You'll

shutter o

the

Turn

direction

screw shown

bose

ond remove the

figure 28

in

the FOCUSING RING.

unscrew the

ADJUSTING

PIN SCREW

lens ossembly in

LENS

RING

post on the upper

thewind knob tocock

Ioter in the disossembly.

little

lockon the bottomof

comero

this

--

After removing the

o counterclockwise direction.

positioning

remoining screw ond lift

geor,

idler

geor

see how the sprocket cocks

thecomero

bock. Next,

screw holds the

of the upper

which is now loose,

geor

trqin mechonism

theshutter

troin. So,

shutter

rotoles

with

iust

the"open"

in

remove the

lens ossembly to

screw,

geor

the

by

simply

FOCUSING

SLOT IN

FOCUSING

FIGURE 28

RING

NOTE: On

reossembly,

you'll

hove toodiust

proper flocus. Although lens focusing

covered loter

your course/ we'll describe

in

for the C-4 in this text.

the lens

procedures ore

procedure

the

tor

Thepin

ring.

Fig.

focusing ring ond fhe rongefinder disc,

to the infinity

hond

finder

finder disc oligns

Remove

ploce.

You must

lens mount to

ossembly.

screwyou

And the focusing ring

26.

reossembly reference

For

position. Notice

the focusing ringgeored

endof

disc

--thot

is,

with the index dot

retoining ring

the

lift off

Now,

peel

reoch the fourscrews

You'll

f ind, however,

the leotherette without

ful. So

to keep

youdo rnuchArgus

if

some new leotherette

After removing

plofe

retoining screws. Then,

removed keys

iust

when the infinity

geors

thot holds

the focusing ring.

bock the

front leotherette

thot it's often diff

domoge

--even

C-4work,

stock.

in

front leotherette,

the

lift out the complete

to

on the

thqt the

rocknowengoges

on the comero

holding the

shutter ossembly os one unit.

plote/shutter

ossembly

removed

from

the

slot

intoo

the RANGEFINDER DISC,

timing

set

the rongefinder

lost tooth ot the

colibroiion

the focusing

in

between

ronge-

the

on the ronge-

plote.

front

the

disc

left-

the focusing ring in

on eoch

comero

though

you

Figure 29

you're very

might

ioke out the

comero body.

side of the

froni plote

icult to

find

itdesiroble

four front

front

shows the

remove

core-

plote/-

front

FIGURE

24

29

FRONT PLATE/SHUTTER ASSEMBLY

SHUTTER

OPERATION

IN

THE

ARGUS

C-4

At this

shuiter shutter bv turninq

the dfrection-shown

in

shutter by

RETEASE

FIGURE

the

stoge of

exomine

to

pushing down

PLUNGER

SPROCKET

DRIVE

MAIN

COLUMN

MAINSPRING

30

BACK

turning

try

Now,

curved orrow

PLATE

of

corries

WIND

underneoth

comero,

the

the idler

GEAR,

clockwise

you ore

while

rewind

To

engoge

the direction

the upper

disossembly,

operotions

the

sprocket

the

OF

the

Fig. 31.

geor

Fig.

direction

rewinding

film,

the

geor

of its

con cock

you

vorious

of the

your

with

figure 30

in

the releose

PLATE/SHUTTER

FRONT

in

the

PLAT

sprocket in the direction

figure 30

sprocket

of engogement

out

So ihe

31.

(os

seen

the

lift up

iust

troin)

orrow, Fig.

finger

until

plunger, Fig.

E/SHUTTER

notice

--

swings toword

moves,

As it

sprocket turns

from the

fi lm into

the wind knob

on

ond turn

26.

it

ond

ports.

the

turn

--

stops.

fop of the 35mm

the rewind

Releose

30.

ASSEMBLY

opposite

the

thot

slide

the

the MAIN

with

freely in o

fhe comero)

releose

Cock

sprocket

SLIDE

front

the

plote

cqssette.

(to

dis-

knob in

the the

the

to

You'll

in o

nisms

one direction

in

odvqnce

to

sprocket

the

you rewind

os

film

processing).

for

more

leorn

loter lesson.

indicoted

--

to ihe

film

the

must

the

be

fi lm

oble

obout

For

nexf

to turn

info

now,

film windond

remember

curved

the

by

fromeond

freely in.the

cossette

the

metering

fi lm

thesprocket

thot

orrow in

tocockthe

opposite direction

(prior

removing

to

mecho-

turns

figure 30 --

shutter.

But

the

25

IDLER GEAR

WIND.

MAIN

GEAR

SLIDE PLATE

FIGURE 31

The moin lever in the Argus C-4

thqn o lever. So

COLUMN

sitting ot the

ot the

lug

figure 30.

in

bottom

REWIND CYCLE

refer

we

to the moin leveros the

moinspring is the

The

of the moin drive

of the moin

drive

of the moinspring, Fig. 32.

MAINSPRING

TO

HOOKS

LUG ON MAIN

DRIVE

MAINSPRING

FIGURE

The

the WIND

in

moin

fhe

spring-looded

The

ossembly engoges fhe teeth of the ossures thot ihe moin wind

THIS

COLUMN

PAW

32

(lower)end

other

CAM, Fig. 32.

geor,

wind

of the moinspring hooks within o notch

And

the

lorge bross

powl

mounted to the

geor

con only iurn

octuolly o shoft

is

rother

MAIN DRIVE

torsion-type spring

column

column hooks the upper end

the wind com is

geor

we exomined eorl ier.

bottom

moin wind

notice thot

--

ottqched

of the shutter

geor

in

--

one

this

direction.

powl

o

to

26

Now,

the moin drive

LATCH,

prevents the releose

orrow in figure 33). Even though the

roiotion

is o certoin

lNlTlAL TENSION.

describe, on reossembly.

column is lotched

Fig. 33.

moinspring

(the

omount of tension on the moinspring

you

must

releosed-position lotch

The

from

releose rototion is indicoted by the curved

you remove the

lf

reploce the correct omount

by

turning the moin drive column in the

the shutter in the releosed

with

position,

notice thot

the RELEASED-POSITION

port

is the

shufter

isn't

moinspring,-os

of initiol

cocked,

--

this

we'll

tension;

thot

there

is

loter

the

ffi

RELEASED-POSIT'ION

LATCH HOLDS

ON MAIN

LOWER

TRANSFER

FIGURE

cocked is only slightly

33 RELEASED POSITION

The

you'll slowly

you con see

curved orrow in figure 33

of the

thot the moin

LUG

DRIVE

COLUMN

OF

END

SHAFT

RELEASED POSITION

position

of the moin

different

rotote the sprocket in fhe cockingdirection,

the moin drive co-lumn

column is now in its

drive

column

drive

from thot shown

sliohtly

iump

--this

slight

"reody"

Let's follow through the cocking cycle to see how

drive column moves

position lotch)

the film-odvonce

in

sprocket turns the idler

geor

wind

to rotote the wind com ond tension

from

to its

"reody"

direction, the

releosed position

its

position.

geor.

The idler

(held

As you turn the sprocket

geor

on the

geor

when the

movement indicqtes'

then turns

the moinspring.

shutter

figure

in in

position.

by

bottom of the

33.

Fig. 30,

the

direction,

the moin

the releosed-

the moin

is

lf

rr'

z*'

During the cocking rototion, the

com

roises the TRANSFER SHAFT, Fig.

tronsfer shoft toword the

tronsfer

to disengoge ihe moin drive column.

shqft

then pushes the releosed-position

top

of

the comero.

surfoce

cqm

33

--

The upperend of the

on the

thot is, pushes the

wind

lotch up

27

moin drive

The

the upword

But

INNER

o oin on

RELEASE

the tronsfer

lever --

spring-looded

INNER

CUTOUT

INNER

IN

LEVER

RELEASE

column now

movement

LEVER

so the

inner

of the tronsfer

to move

shoft rides

tronsfer

releose

lever.

to turn in

storts

up. Notice

within

shoft

its releose

shoft olso ollows

o cutout

controls

in the inner

thepositionof

figure 3+

in

rototion.

the

thot

releose

the

SPRING

FIGURE

cept

drive

the

by

leosed-position

the

lotch

ever).

I

direction

the wind

on

com, it

the

by

com is blocked

off the

ihe inner

by

CLIP

34

the

Now,

the releose

column con

inner releose

moin drive

formerly engoged

con continue

You

until

cqm

comes

cocking

tension

shutter

The

correctomountof

lotch).-----

you releose

When

releose

inner

,,READY"

"READY''

inner releose

rototion

turn

lever, Fig.

is then

lotch

column

lower

the

when

--

position

into

cycle.

The

the

on

now in

is

the tronsfershoft

by

releose

out

Iever

POsITION

POSITION

lever

the moin drive

of

only o

slight distonce

34.

heldogoinst

(the

some

ond is now

turning

spring clip,

lever

the

of engogemenr

the

of the

end

the tronsfer

to

block

tronsfer

shoft

fully-cocked

the

film)ond

(rother

shutter,

swings into

before

the spring-looded

And

tension by

its

tronsfer

shoft is

the

by

shoft blocks

pushed

lug thot

engoged

sprocket in

the wind

is held

34.

Fig.

(ofter

fhesprockei

the moin drive

thon

the

the releosed-position

by

releose

the moin

with

position to inter-

if is

The

lotched

column.

the lugon

releosed-position

the inner

the

releose

film-odvonce

the lug

the

up by

com ot the

in its

"up"

end

positton

position: the

hosmete.red

pushes

drive

lotched

column.

column is

plunger

moin

re-

wind

of

wind

the

28

Now,

os the neoth

position lotch

of

freeing

lotching

relu-ot"i-position

the

the tronsfei

wind com

the

moin drivecolumnspins

the

lug on

pushes'the

then

shoft

prior to

moin drive

the

lotch,

tronsfershoft

folls below

the next

in its

the

bockdown

releose

column

the

cocking

rototion.

from.under-

Posses

spring-looded

--the

lug on

the

cycle.

soon

As

.releosed-

lower

com,

wind

end

Now,

lotching

spins sirikes

lug

in iti

the

As the moin

the blode

drives

link between'the

The

is the

rins

bv-Arous).

groouu in the

cJ,

t(u

leof

THIS

BLADE

lever

END OF

LEVER

FORKED

OPERATII'rG

THIS END OF

LEVER

LEAF

IN CAM

MAIN

IN

engcrges

ENGAGES

the releosed-position

drivecolumn.

on the

releose

reIeosed-position

LEAF

Notice

TAB

GROOVE

COLUMN

moin

drive

operoting

LEVER,

the blode

LEAF

OF

RING

RIDES

DRIVE

rototion

column

ring

drive

moin

Fi9.

one end

thoi

moin drive

until

lotch,

toopen

35

operoting

is in.position

lotch

the

Fig. 33.

in the

turns

ond

column

(colled.the

of the

column --

So the

lotching

moin drivecolumn

lug

releose

shutter blodes.

the

close

ond the blode

"TOGGLE

lever

leof

the other

ring.

to cotch

ogoin

once

rototion,

operoting

PLATE,

within

rides

of the

end

the

it

FIGURE

up

But

cor.lnterclockwise,

moin

position.

comerq body,

for enough'to

some

35

the moin

As

(to

open

the

Different

drive

lug-which

the blodes),

moin

instontoneous

column's

Locqte

Fig.

op-en

column

drive

seen

os

rototion

speeds escopement

the

36. Once

the blodes,

hooks the moinspring)

turns,

ond

column

from the

turnsonly

top

ore obtoined

speeds

when the blodes

down.(to

then

the moin

RETARD

its

it drives

of the

which is

drive

strikes

the blodes).

retording

by

the

lever

full-open

the leof

close

onedirection--

in

comero.

reoch

riveted to

column

DRIVING

the

hos turned

LUG

pin on the

first

the

(the

first

29

geor

segment.

of the moin

SPEED CAM

RETARD LEVER

PIN ON FIRST

SEGMENT

GEAR

ESCAPEMENT

The speeds escopement then slows down the rototion

column to hold

drive

the blodes open.

FIGURE

knob on the front of

com, Fig.

the

tirst

36

We con

chonge the omount

36, to control the

retord lever,

geor

segment.

in

Notice thoi

LEVER,

BULB

speed

com holds the lotching

from

the

FIGURE

But ot the

spring-looded

Fig.37. At

LUG on

BULB

37 SHUTTER

SHUTTER

"bulb"

bulb leverfoswing

of retord

comero.

the

The

speed

position

turn, controls the position

the speed

com olso controls

oll of the instontoneous speeds,

end of the

the mqin

HELD OPEN

setting,

Fig.37, the speed

drive

up.

column.

Now,

turning

by

knob turns the speed

of the retord

of the spring-looded

position

the

lever

bulb

ON

''BULB''

when

down

com ollows the

you releose

the speed

lever. And

of the

the

--owoy

the

30

shuiter

slightly,

So os the

lotching

lever

then

rototion

depressed.

(to

inner releose lever pushes

the

into the

poth

of the

bulb lug on the moin

moin drive column rototes ond

end of ihe

prevents

close

the blodes)os long os you hold

lever cotches

bulb

the moin

column from

drive

the bulb lever

opens the

the

lug.

bulb

completing

the releose plunger

down

drive column.

blodes, the

The bulb

its

you

When

frees

the

lever up to

The one

fhe

operotion of the sync

oi

CAM

iust

ond the contoct

ACCESS HOLE FOR

SYNC

ECCENTRIC

LOCKING SCREW*

SYNC PALLET

STAR WHEEL

CLOSING

FIGURE 38

ln

sync

or

sync)

--

"Complex

let upon the releose

lever

bulb

disengoge

remoining function of the

the top of the

below

PALLET

CAM

CONTACT

CAM

the

Argus C-4, you hove o

sync

"X"

you

leorned the meoning

Escopement

timesoreprovideo

ond the switch

unsoldered

qction

is

on the comero

the sync wires)

delivered.

the

bulb lever

moin

drive

--

contocts.

moin

drive

the contoct closing

closure, Fig. 38.

*DESCRIBED

(or,

in some

Retord Shufter

models,

oytheCONTACT

top cover

electricolly determines

plunger,

the inner releose lever

spring

then pulls

column.

moin drive column

The CONTACT

CLOSING

column ond the STAR

com control fhe sync

LATER

IN TEXT

choice

of these terms

--

BLOCKshown in figure3g

between either

between

Porf

1. " Both

plote

"F"sync

your

in

sync

(from

which you

which sync

the bulb

involves

WHEEL

deloy

"M"

ond

"X"

lesson,

deloy

--

On

opening

reoches

"M"sync,

is

deloyed

its peok

os you

for o froction

intensity.

know, the

ln

by the SYNC PALLET which

flosh

is fired

of o second

ond the shutter

while the floshbulb

theArgusC-4, thedeloy

engoges the teeth

cut in the stor

provided

is

31

wheel

the

moin

intensity.

com, Fig.

drive

38. So the

columnwhile

sync

pollet

the

deloys

floshbulb

rototion

the

reoches

its

of

peok

,M"

,'X''

FIGURE 39

stroin the

os the moin drive

com

"M"

down

contqct closing

contoct

fixed

com contoct

"M"

only the

F

CONTACT

Ftx

CONTACT

MOVABLE

CONTACT

BLADE

CONTACT

BLOCK

see

con

You

.releose

pushes the MOVABLE CONTACT

confoct,

Fig. 39. During

the movement

os the moin

Then,

blodelwings

contoct

"X"

At the lost degree

pushes the movoble

to

breok

ond the

one sync time

sync switch on

"X"

contoct closure by

the

rototion of

column

first

of the mqin drive

drive

frees the movoble

com

to its lefi(underitsowntension)to

once the

of

contoct blode

the

flosh

"X"

contocts

provided

is

the top cover

the moin drive

storts to turn,

rototion, the sync

this

column.

column

continues its

contoct

ore fully open.

blodes

moin drive

sync circuit.

close during

column rototion,

depending

--

plote.

finger to re-

your

using

column. Notice

the contoci closing

BLADE

ogoinst

rototion,

blode. The

from the

owoy

Even though both

shutter operotion,

every

on the

thot

the fixed

pollet slows

the

movoble

strike the

sync

the

ixed

"X"

.f

position of

the

DISASSEMBLY

As it

OF THE

stonds, the

now

for routine cleoning

go

hove to

blodes,

is thot dirt

gether

often

o little

fhe leof

ond

ond operoting

--

couses

qdditionol

lever, ond the moin

greose

32

ARGUS C-4

Argus C-4 shufter is

ond Iubricotion.

SHUTTER

However,

further in disossembly

drive

couse the

mqy

shutter with

the

domoge.

shutter blodes

eosily

you'll

ond remove

column. The

"frozen"

shutter blodes

occessible

frequenfly

the shutter

reoson

to stick to-

For exomple,

or the leof

--

fo

disossemble

the

blode

moin drive

the moinspring

lever moy breok fhe shutter blode

operoting

column to

ring

reploce

moy bedistorted

from

ossembly

ond you moy

--

the moinspring.

the stroin.

So you'll

tocleon the blodes

hove to

(or

moy.breok)

remove the

hove

ond

shutter blode

The

front or

the

from

which

shutter blode

the

ticulor model.

shutter

the

screws

the

individuol

removing

disossembly

Loy thecomeroon

you, os in

figure

in

ossembly.

MOUNTING

blqde

come in

ports of the

the

to note

figure

40

--be

LENS

RING

SCREWS

ossembly

from the bock

ossembly

retoining

the

lf

ossembly

comes off

from the

shutter blode

screws.

positions of

the

yourworkbenchwith

40.

Now,

coreful thot

is held by

of the

is mounted

screws come

os in our exomple,

front,

So you must be very

the individuol

remove

you don't

screws

ossembly

depends

in

o

os

complete

ossembly ore

the lensmount

the five.screws.pointed.

disturb

coming either

the woy in

--

on the

from the

unit. But

the mony

loose ofter

coreful during

ports.

shutter

the

por-

bock,

if

focing

out

blode

FIGURE

40

Then,

workbench.

to the lens

42,

shutter

Fig.

(whi"h

bloJes

43.

iust

Lift

off the lens

lift

Next,

mounting

it next

ond

out the

provide

off the

lift

ring.

fiist

the

to

the bross

shutter blodes

cleoronce

mounting

plote, Fig.

first

Lift

plote

sPocers over

blode

for the

plocing it

ring,

41,

off the

ond the

shutter blodes).

second

you con now

--

the

five blode

on your

ploce

ond

plote, Fig.

see the

screw holes,

spocers

it

FIRST

PTATE

FIGURE

41

SECOND PLATE

FIGURE

34

'li}

Next,

lift off

ond the blod"

ond the keep the>e

the'end

operof

block bose

ports

of theleof

ring.

ing

shutter blode

the

op.roting

in

ring,

Fig.46, in

plote,

order for reossembly.

leverthot

engoges the

Fig.

45.

mounting

Remove

thotsequence

Figure

plote,

46olso

forked tobon

Fi1.

the bross

remember,

--

points out

the

.M,

plote

blode

sHUTTER

MOUNTING

FIGURE

OPERATING

BRASS

BLADE

RING

'T4

BLADE

RING

PLATE

FIGURE

You

felt

the

/T5

con

pod,

now

Fig.

see the

47

--

five

lift ouf

sPocers

the

sitting

five

within the

spocers to

holes in

prevent [oss.

35

PLATE

BASE

END OF

LEAF LEVER

THAT €NGAGES

BLADE

OPERATING

RING

FIGURE

figure

body

46

47

leof

The

35). lnsert

(olso

visible in

ossembly is

lever

yourscrewdriver

figure 35)ond remove the twoscrewsond

leof leverossembly. The

permitting

this odiustment

o slidingodiustment

during

There is

olso

reossembly.

on odiustmenf

moin drive column. The threoded

ond theother

drive

turbs

pivots

column. Of

odiustment --so

the

one

--

in, you

course,

conchonge theverticol

held

by

through the hole in the

holes in

the leof lever

for the leof

on the verticol

moin drive

column

ot either end. By

removing the moin

fornow, notice

two screws

(visible

ploteore e_l.ongoted,

lever

we'll discuss

--

posif

ion

is mounted

turning

thot the

one

positionof the

column dis-

drive

stor wheel com

comero

of the

on two

Pivot

in

the

out

moin

36

on the

pollet,

moin drive

Fig.38.

NOTE:

tensioning

omount

spring to bring

Since

shutter speeds, tensioning

col umn is

Removing

the mqin drive

the moinspring

of initiol

tension musl be

lrl300

the

your next lesson

we'll

procedures in this

opproximotely

column

on reossembly. The

opplied

second shutter

describes

go

iust

the methods

through

text.

centered

on the

requires

correct

to the moin-

speed into time.

of testing

the disossembly

sync

re-

ond

To remove

moinspring

tension is to

tensioning) the moinspring.

the moinspring by

moin drive

Using

position lotch

The moin

its

"reody"

releose

drive

the shutter by depressing

column then runs

turn of initiol

Repeot this

drive column

tension left to turn

the moin drive

initiol tension. The

releose the

cocking

column

your screwdriver blode,

drive

lets off one

thereby disengoging

--

column now

position, held

through its

tension.

procedure

through its cycle

the moin drive

column,

irick in

shufter

untiI

without cocking

Since you oren't

shutter,

the

turn

moves

ihe inner

by

the

lhe moinspring

--thot

to turn the moin drivecolumn in ihe

remoining tension. You

ony

initiol

tension

To

threoded

reoched through

be

were originolly

remove the moin drive

pivots.

The

Fig. 48. But we'll

see the upper

eosily

more

rongefinder

mechonism by

ossembly is

two screws.

upper

theoccess

remove the rongef inder

should now

on the

column, you must loosen

pivot, on top of the mechonism,

hole

pivot ond the

one complete

you should first let

letting

off the initiol

(ond

odding iension

revolution of the

eoch

of initiol tension.

push up

on the releosed-

the moin drive

from its releosed

releose

releose plunger. The morn

releose cycle ond lets

connot turn the mqin

is, until

column.

releose

spring.

the rongefinder bose

in

there isn't enough

Then,

direction

know how mony turns of

ossembly

other odiustments. The

unit held

position to

lever.

your finger

use

ond let off

so

to the shutter

off the

thereby

column.

Next,

off one

the two

moy

plote,

con

you

lo

NOTE: The

two screws)

holes in the

ore elongoted,

for the rongefinder. lf

moy hove

to

moke

the

rongefinder bose

plote

permitting o sliding odiustment

you remove the

sliding odiustment

rongefinder, you

on reossembly

the

(for

37

:

i I

I

(so

fhe rongefinder

ring).

But to moke

oround the

removol.

occording to your

UPPER

MAIN

DRIVE

COLUMN

PIV

BRASS

Then, on

CLIP

disc

things

of the rongefinder

edge

reossembly, position the rongefinder

scribe lines.

properly

eosier,

engoges the

you con simply scribe

bose

focusing

plote

before

l*z

5YNC

WIRES

FIGURE 48

Bend

ond move the sync wires

remove

Now,

figure

in

clip for

ossembly

RANGEFINDER

FIGURE

the sync wires).

up ond off the comero

scREws

49

Before you loosen fhe pivots, try moving the moin

column up ond

the omounf of

you'lI

in the

bock

the

clip holding fhe sync wires,

bross

owoy

rongefinder

fhot one

49

the two

(notice

Finolly, lift the complete rongefinder

with your finger

down

endploy

wont to odiust the

moin drive

column.

from

the rongefinder ossembly.

retoining screws

the screws olso holds

of

body.

--

you

pivots for

con

feel.

this slight endploy

pointed

the

drive

mentolly note

reossembly,

On

*

Fig.48,

oui

bross

The upper

pivot for

the

visible, Fig. 50. A hexogonol

38

moin drive

holds

nut

column

the threoded pivot

is now cleorly

in its

odiusted

position.

Loosen

the

hexogonql

nut ond turn the

obout two turns in o countercIockwise direciion

of the

moin drive

HEXAGONAL

LOCKING

AND

DRIVE COLUMN PIVOT

UPPER MAIN

SYNC

ECCENTRIC

column is now

NUT

PALLET

free.

the upper end

--

pivot

CONTACT

RETAINING

FIGURE

50

Next,

bottom of

size, toke

cover screw

COVER SCREW

LOWER

FIGURE 51

drive the lower

moin drive column

nome of eochlugond com.

end of the

one

the moin pivofs, should

should

present.

MAIN

COLUMN

Looking through the cover screw hole, locote the lower

column pivot

Figure

boll beoring

nonetheless

BLOCK

SCREW

locote the cover

the

ossembly, Fig.5l. Using

the cover screw.

out

so, remove the slugs to reoch the

if

--

FOR

DRIVE

PIVOT

BOTTOM

this pivot hos o

pivot

52,

--

clockwise direction until

ino

ond the

showing the

moinspring.

lf

moin drive

drive

column, you should spot o

is spun into

column.

come out

not

check

the boseof the covifyot eoch

The boll beorings,

to moke

screw for the lower pivot of

o spline

keyof the

There moy be

OF ASSEMBLY

left-hond threod. So turn

you

moin drive column,

you'll lookinto thecovity

which

in normol disossembly

sure

both

boll beorings

slugs

lower

lift out the

con

poinfs

boll

beoring

engoge the

-- buf

the

proper

under the

pivot.

moin

out the

ot either

--

end of

you

ore

39

CONTACT

CLOSING

CAM

STAR WHEEL

LATCHING

LEAF LEVER

DRIVING

FIGURE

REPLACING THE MAIN DRIVE

without furtherdisossembly.

lubricote

moinspring in

moinspring

52

ports remoining in the

The

the two

position on the

plocement

CAM

LUG

BULB LUG

CAM

RETARD

LUG

MAIN

beorings

boll

figure 35).

in

DRIVE

After cleoning

COLUMN

COLUMN IN THE

shutter

mechonism

the moin drive column,

ARGUS C-4

moy be

with moly-lube. Now,

(you

wind com

con see the

cleoned

ploce

ProPer

the

Seot

the upper

swing the

lower

of the moinspring

column

drive

The moin drive

--thot

.

is, with its

lotch.

turn down

Next,

Adiust the

(on

the

to leove the

pivots os previouslydescribed until

moin drive

slight endploy in the moin drive

40

end of the moin drive

behind

column

position.

the retord

should

Moke

nowbe

end into

hooks

lotching lug engoged by

the two

column) centers

pivots to hold the mqin drive

on the sync

column

sure

driving

in the

first

--

thot the upper end

lug on the moin

releosed

position

the releosed-position

column.

the stor wheel

pollef

column.

Remember

.

then,

com

willput two

For now,

spring. lf everything

should be

initiol

shutter

we

sufiicient

tension

speeds.

moy require

working

is

cock

to

turnsof initiol

properly,

releose

ond

tension

two turns of tension

ihe shutter. But

further odiustment

the moin-

on

to bring

the

in the

shutfer odds

Cocking

So we wont

moinspring

First,

odvonce direction.

the

to cock

then retoins

cock the

the

shutter by

Then,

o clockwise direction

until it

moin

of

from cocking

--

Now,

moinspring.

until

releose

normol monner.

set the speed knob

hold the

is

lug

lever --

the bulb

to moke

is lotched by

column is now

drive

still

the tronsfer

thot moves

cock the

You

it is

plunger. You

Test

shoft

the shutter

the tronsfer

shufter o second

hove

iust

Once

hela by

the shutter

opplied

ogoin, turn

the

operotion

to'ibulb"

releose

held

by

(on

the moin drive

the bulb

leverdoes

onotherslightod[ustmentto

plungerdepressed.

ihe bulb

lever,

lever

notcotch

initiol

shutter twice without

the initiol

turning

turn the moin drive

(os

seen

the releosed-position

in its

blocks

ogoin. So

shoft

two full turns

releosed-position

con nowcock

ot

--

tension

tension.

the

the top of the mechonism)

from

releosed

wind com --

the

iustdepress

the lug

below

time

by

the moin

ond releose

oll of the

cock ond releose

While ihe moin drive

the relotionship between

check

column)

should be

ond the lotching

centered

the bulblug

the moin drive

to the moinspring.

releosing

sprocket in the

column

it

slightly in

lotch. Although

position, the

the

on the

turning the

of initiol

column

drive

lotch ond depress

theshutter in

shutter speeds. Then,

on the bulb

properly,

lower end

preventing you

releose

the shutter, but

end of

plunger

wind com.

sprockei.

tension to

clockwise

the the

lug.

youmoy hove

column

the

--

film-

the

the the

the

column

bulb bulb

pivots.

lf

REPLACING

NOTEI

shutter blode

woy,

thot

ring for

Working

htles in

within

the

ARGUS C-4

THE

We removed

ossembly.

ossembly before

we con test

free

movement.

front of the

the

from

the

SHUTTER BLADE

the leof

However,

ihe operotion

pod. Seot

felt

lever offer

we'll reossemble

replocing the

of the

comero,

reploce the

the block bose

ASSEMBLY

toking

leof lever

operoting

blqde

out

f

ive

plote

the the

--

sPocers

with

cutout

its in the reploce

in the

pointing

tob

plote.

positioned

plote

bose

the

plote.

bose

os shown in figure 46, and olign ihe holes

screw holes

oligning

bross

with the

plote,

Seot the

down ond possing

in the front

screw holes

its

plote.

Next,

with the holes

blode operoting ring wiih its forked

through the cutout in the

bose

Locote

ring

ing

go

hol

--

up. Seot

es

.

Now,

position

open open posifion). Ploce

the forked

next four

Depending on the

more

blodes left over. These extro

blodes.

ond ploce

thot is,

instolled oll of

spocers

Ploce

iust

over the screw holes.

You must

position

blodes

go

screw

--

ond

over the

holes in the

Finolly, seot

f

the

ive roised

these

"dimples, "

shutter

the

rotote

the

(it's

much

tob on the

blodes in clockwise rototion.

the sixth

seventh

the

stort overwith your clockwise

shutter

the

very coreful while seoting fhe second plote

be

otherwise/ you

the blodespocers.

pins, while the smoller

blode

blode mounting

the

ploce the five retoining

ploce.

in

"dimples"

which hold

blode mounting

operoting ring clockwise

blode

eosier

the first

operoting ring.

blode

porticulor

blode over the

blodeoverthe

on the shutter

to reploce

overthe

blode

comero, you

blodes

pins for

the

ring

the shutterblodes

oct os spocer ond

pins for

rototion

blodes.

con disturb the

The lorgerholesin thesecond plote

Then,

position

positionsof

ring.

first plote

screws to hold the shutter

ond the lens mounting

blode mount-

shulter

locoting

blodes, must

ond olign its

to the

pins

neorest

full-

in

five

the

Then, reploce the

now hove one or

cover

the firsf

the second

uniil

the five

holes olign with the

blode,

blode--

you hove

blode

shutter

the

ring. Re-

blodeossembly

in

test the

To

operotion, turn over fhe shuffer

locote the fortced tob

screwdriver ond closing the

move

REPLACING

IN THE ARGUS

Before replocing

blode to move the forked

shutter

smoothly ond freely.

ADJUSTING

AND

C-4

42

on the

blode operoting ring.

tob

blodes. The blode

THE,LEAF LEVER

the leof

lever,

lighily lubricote the leof

mechonism ond

Use your

ond

up

down

--opening

operofing ring should

lever com in the moin

the leof lever in forked

tob

within the

two screws to hold the leof lever in

ploce

on the blode

lever com

leof

column

drive

-- one end

operoting ring, while the

the

in

moin drive

with

of the

ploce.

moly-lube.

lever hooks to

leof

column. Reploce the

Now,

other end

seot

the

fits

con now cockond releose ihe

You

Remember, we mentioned thot the leof lever

ment--by loosening the two screws,

ossembly

lever

shutter

the

leqf leveris

Set

hold the releose

--

the

lf

blodes

leof lever.

the leof lever ossembly

they ore in figure 37. And, ofter

sure

the leof lever retoining screws ore snugly

ADJUSTING THE SHUTTER SPEEDS IN THE ARGUS C-4

There

one is the omountof

--

other is fhe position

Remember, you con olter theomountof

turn increments. Check the shutter

slowest shutter speed

the moinspring, the

second.

But

dicotion of the soon leorn

remember second

slower.

foster,

NOTE: lf

tension, you

slighrlv. A slight

moinspring.

probobly

coming

in itio I tension, check thorough

up or down. lf

won't

blodes

sitting

the speed knob

oren't

Now,

ore two shutterspeed odiustment points

be held fully open on

too high, the blodesmoynotclosecompletely.

io

"bulb"ond

plunger

depressed

fully open, loosen thetwo screws holding the

still holding

up until the

initiol

speed

of the

you hove sufficient

if

--

shutter'should run

the fostest shutter speed

preciseomountof

procedures for

the

you

thot

must odd initiol tension to moke the

qnd

letoff initiol tension to

you hove

to odd more fhon

moy note thot the

omount of buckle won't

But if the buckle

some

other reoson thot the shutter

to I/300 second.

up

shutter

youcon slide fheentire leof

the leof

to test the operotion.

hoso sliding odiust-

lever is

sitting

"bulb";

depress the

to

keep the

the blodes open on

blodes

moking the odiustment,

tension on

com.

themoinspring; ond the

operotion

releose plunger

blodes

"bulb, "

ore fully

tight.

in the Argus C-4

initioltension byfull-

of 1/10 second,

initiol tension

through smoothly ol

l/300 second

--

initiol tension

is your in-

--

necessory. You'll

testing shutter speeds. For

thel/300 second

moke

two turns

moinspring

of initiol

"buckles"

domoge the

is excessive, there

speed

Rother

y for o

I

thon odding

comero

mo

I function

too

ond

open

isn't

more

low,

if the

open.

slide

--

moke

the

on

1/10

now,

I/300

is

.

os

43

initiol testof

The

described

fostest speed

for the

(l/300

next-to-the-highest curqcy,

procedures we'll describe

you con odiust

the

Argus C-3.

second),

speed

speed com

You

ond

(lrl100

the

in

iust

second). But

speed com

your next lesson.

position

should

similorto thot we

is

hove no retord

o whisper of retord

for criticol

occording

on the on the

oc-

to the

Argus C-4

The

for less reiord

com in

speed

(ond

thereby o

speed knob.

To reoch

speed knob by

spring

under

with its

d'isc

locking

chonge the

I,/l

LOCKING

screw, you con

second.

0

CONTROL

SPEED

omount of reiord

SCREW

speed com

(ond

thereby

toword

--

slower speed), we

the speed

removing its

ihe speed knob. Now,

locking

spline

hos on in-ond-out

o foster

the escopement.

move the

com odiustment

center

screw, Fi9. 53. By

rotote the speed

for the

DISC

speed),

screw

--

locote

control disc

speeds of

odiustment.

we

move

the entire

And for more

speed com toword

first toke off the

point,

I/l

second through

00

o compression

loosening the

ond thereby

there's

the bross.speed

So

retord

fhe

control

#"'\

ii

FIGURE

53

ADJUSTING THE

methods

The

for

So

lessons.

points

in the

Remember,

now,

Argus C-4.

contoct closing

44

SYNC DELAY IN

we'll

"X"

sync

iust

contocts

of testing

the

com on the moin

ARGUS C-4

THE

deloy

ore olso

covered in future

point out the specific

should be

drive column.

held oport

And, when the

odiustment

the

by

blodes

flqsh.

rototion,

movoble

ore fully open,

restroining

By

you con visuolly

contoct blode.

the

"X"

contocts

the moin drive

for the

check

should

column during

proper operotion

close

to fire the

its rel-eose

of the

odiustment

The

is locoted

tocts

figure 50

con

either

moin drive described.

deloy. To

thot'thesync

col umn.

operotion

holds the

shift the contoct block

closer to or

column)

There is

chonge

polletengoges the

For exomple,

of the movoble

correctly. But

(the

is too

long

milliseconds). ln

sync pol let engogement.

loosen the

First,

holeobove thesync

ollows

sync pollet eccentric forther

COMPLETING

you to turn the

from the stor

for the opening

on the top

contoct block

forther from the

until the

olso on odiustment

the

soy you've odiusted

when checking

"M"

other

pollet, Fig.

wheel com.

ARGUS

THE

closing of

ond

of the

in

comero. The

loosening

by

--

position. Move

contoct

contocts open

ond close os

for the length

sync

"M"

deloy,

stor wheel com on the moin drive

contoct blode

"M"

sync

deloy

words,

spline

you must decreose

lockingscrew

38.

sync pollef eccentric, Fig. 50.

moves

the sync

C-4

you

the contoct block

--

sync, you find thot

should

REASSEMBLY

be

occessible through the

Loosening the locking

pollet either closer to

the sync con-

screw

the

the contoct block

closing

of the

odiust the depth

cqn

sync now tests

"X"

between

shown in

screw,.you

(on

com

previously

sync

"M"

for

Proper

the

deloy

17 ond

the depth

screw

And

the

19

of

the

or

Reploce

under the bross

wires

shown in

interfere

body

disc

ing

engoge

must reodiust

figure 48. Moke

with

seot

Now,

ond reploce

fo infinityond

ring

--

the rongefinder disc

you

Since

rongefinder

the

clip ond

the upper

the

the four

remember, the

disturbed

the lens

wind

front

reploce

the lens

for infinity

with

its two

press the clip over the wires,

sure thot neither the wires

geor,

screws. Hook the

48.

Fig.

plotfhutter ossembly in

retoining screws.

the lens

lost tooth

focusing ring with its

on the

ot infinity.

focus byremoving

during

Set the rongefinder

focusing

instollotion. Thot is, if

nor theclip

the comero

retoin-

should

ring

the lens,

sync

os

you

45

ottocho

you iens until focus.

ground glossto

on

infinity

focol

the

torgetviewed

plone,

theground

on

youconscrew

glossis in

in

shorp

the

loosen the three

First,

slot

28.

torget,

in

odiusting ring, Fig.

imogeofon infinity

shorpest focus.'Without

its

odiusting ring until

lens

oligns *ith the

pin screw ond tighten

odiusting ring.

remoining reossembly

The

the order of

your

disossembly.

spline

while

Now,

screw in the chonging

the hole

the focusing

the three

procedure

screws oround

wotching

lensuntil

the lens

for the lens

ring. Then,

spline

screws

iust

roJqte

lens

isot

the

the knurled

ground gloss

the

the imoge

position, pin screw, Fig,.28,

reploce the oround the

involves

lens lens

reversing

Argus C3, C4 Shutter Service Manuals

Specifications and Main Features

Frequently Asked Questions

User Manual