Argus C3 - Page 31

wheel
com, Fig.
38. So the
sync
the
moin
drive
columnwhile
intensity.
F
pollet
deloys
the
rototion
of
the
floshbulb
reoches
its
peok
,M"
CONTACT
Ftx
,'X''
CONTACT
MOVABLE
CONTACT
BLADE
CONTACT
BLOCK
FIGURE 39
You
con
see
the
contoct closure by
using
your
finger to re-
stroin the
.releose
rototion of
the moin drive
column. Notice
thot
os the moin drive
column
first
storts to turn,
the contoci closing
com
pushes the MOVABLE CONTACT
BLADE
ogoinst
the fixed
"M"
confoct,
Fig. 39. During
this
rototion, the sync
pollet slows
down
the movement
of the mqin drive
column.
Then,
os the moin
drive
column
continues its
rototion,
the
contqct closing
com
frees the movoble
contoct
blode. The
movoble
contoct
blodelwings
to its lefi(underitsowntension)to
strike the
fixed
"X"
contoct
once the
blodes
ore fully open.
At the lost degree
of
moin drive
column rototion,
the
sync
com
pushes the movoble
contoct blode
owoy
from the
.f
ixed
"X"
contoct
to
breok
the
"X"
flosh
sync circuit.
Even though both
the
"M"
ond the
"X"
contocts
close during
every
shutter operotion,
only
one sync time
is
provided
--
depending
on the
position of
the
sync switch on
the top cover
plote.
DISASSEMBLY
OF THE
ARGUS C-4
SHUTTER
As it
now
stonds, the
Argus C-4 shufter is
eosily
occessible
for routine cleoning
ond Iubricotion.
However,
you'll
frequenfly
hove to
go
o little
further in disossembly
ond remove
the shutter
blodes,
fhe leof
lever, ond the moin
drive
column. The
reoson
is thot dirt
ond
greose
mqy
couse the
shutter blodes
to stick to-
gether
--
ond operoting
the
shutter with
"frozen"
shutter blodes
often
couses
qdditionol
domoge.
32