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7
Drive
system
Drive batteries and battery safety box
The
camera motor and the power zoom
mechanism are
electrically
powered by six
1.5
volt
AA penlight cell batteries.
This
type
of battery is obtainable everywhere
for use
in
transistor
radios. We
recommend
the
use of manganese-alkaline cells
(for
ex-
ample, Mallory MN
1500,
Everready E 94,
Ucar
E 94). The batteries are housed
in
a
safety box
in the
camera
handgrip.
To
obtain
access
to
the patteries,
press the
button beneath the shutter release and
swing down
the hal'ldgrip. Pull
back
the
knurled
catch on the
upper
section
of the
handgrip.
The battery box
will
be
partly
ejected
.
Loosen
the knurled screws on
the
under
side of the box until
the
cover can
be
removed.
Insert the
six
1.5 volt
cells as
indicated
by
the
symbols.
Repl'
a ce the
cover and tighten
the
knurled screws. The
studs on
the box lid
are of differing
lengths
so that the cover can only be replaced in
one position
.
Insert
the
battery box into
the
handgrip
and
press down gently
until
the knurled catch snaps
into position over
the projection on
the
box.
If
the batteries
have
been
inserted
incorrectly, the
cainera
will not
be damaged
but
the
drive motor
will
not
run
.
The safety battery
box
protects the
con-
tacts in the camera against
damage
caused
by
electrolyte
leaking from old
batteries.
It is
a good idea
to obtain
a sp'are battery
box
(available
as an accessory), especially
when filming
in extremely cold
conditions.
If
the batteries
in the
camera are exhausted
or
too
cold
to drive the motor
at
full power,
the
complete battery box can
be replaced
by the spare
unit, which
should be
kept in
your
pocket so that
the
batteries remain
warm.
Master
electric switch
When the
master switch
is
set
to 0, the
circuits powered by
the
drive and
meter
batteries
are disconnected
.
When
set
to
the running position (red
dot),
the batteries
supply a
very
small continuous current and
will therefore
slowly become exhausted
Vo ltage
check
•
Off
Operating
position
o
•
I
J~~fl
even
if the
camera motor is
not
run. For
this reason,
the
master switch should al-
ways be
turned
to
°
whenever the camera
is
not operated a
prolonged
period
.
This
will
also prevent
the
camera
from
running
if the
shutter
re·lease is
accidentally oper-
ated. Note, too,
that
if the
handgrip is
swung back
but the master
switch
not
set
to 0, the meter battery will continue
to
operate at
full
power.
The
black dot
indicates the
switch setting
for checking
the
condition of the drive
batteries.
Checking voltage of drive batteries
When
moved to
the
black dot setting,
the
master electric switch is spring loaded so
that it
cannot accidentally be
left
in
this
position
.
To check battery voltage, push
the
master electric switch along as
far
as
the
black
dot
and
hold it
temporarily in
this
position.
Examine
the
aperture scale at the
bottom of the
image in the
viewfinder;
the
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