Handling Can Tap - Datsun 620 Series 1977 Service Manual

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r
r
AC734
Fig A C 15 Service value
docK wise
n
r
Air
Conditioning
HANDLING CAN TAP
A
wide variety of
can
taps
are
available The
following
procedures
apply to
conventional
can taps
For
the correct usage
refer
to
the
manufacturer
s instructions
Caution
Use
can tap
of
good quality
I
Connect
charging
hose
to
the
center
fitting of manifold gauge
At
this time
confirm that both
stems
are
fully
turned in front seated
2 Turn
can
tap handle fully
coun
Counterclockwise
s
r
@
A rn
Purging air
R I2
AC
terclockwise
so
that
the needle is
pulled
up
3 Attach
can tap
to refrigerant
can
firmly
4
Turn
can
tap
handle
fully
clock
wise to
make
a
hole in
refrigerant
can
5 Turn the handle
fully counter
clockwise
to raise
the needle
Refriger
ant
gas will
flow
up
to
the
center
fitting of
manifold
gauge
6 Loosen
the
connection
a
t the
center
fitting
of manifold
gauge for
a
few seconds
to
purge
air
inside charg
ing
hose See
Figure
AC
16
1
Can tap handle
2 Charging
hose
3
Needle
4
Refrigeran
t
can
AC246
AC247
Fig
AC 16 Can
tap
and pw
ging
air
q