Datsun 1980 200SX Service Manual page 416

J
PRECAUTIONS
WARNING
1 Since direct
conlllct
of the
liquid
refrigerant
with your skin will
muse
frostbite
always
be careful
when
handling
the
refrigerant
Always wear
goggles to
protect
your eyes when
working
around
the
system
2 The
refrigerant
service conllliner
has
a
safe
strength
However if
handled incorrectly
it will
ex
plode
Therefore
always
follow
the instructions
on
the label In
particular
never
store
it in
a
hot
location
above
S20C 1260F
or
drop
it from
a
high height
3 The
refrigerant
gas is odorless
and colorless and breath
ing
may
become difficult due
to
the lack
of oxygen Since the
refrigerant
gas is heavier than air and will
lay
close
to
the floor be espe
cially
careful when
handling
it in
small confined spaces
4 The
refrigerant
itseit
is nonflam
mable However
a
toxic
gas
phosgene
gas is
produced
when
it conlllCb fire and
special
care
is
therefore
required
when check
ing
for leaks
in the
system
with
a
halide torch
5 Do
not
steam clean
on
the sys
tem especially
condenser since
excessively high
pressure
will
build up in the
system
resulting
in
explosion
of the
system
Connection
to service
v
lve
I Funy close both valves of
mani
fold gauge Connect
high
and low
pressure
charging
hoses
to
manifold
gauge
2 Remove
caps
from service
valves
Connect
high
and low pressure
charg
ing hoses
to
service valves in system
i
i
GENERAL
SERVICE
r
AIR CONDITIONER
General
Service
INSTALLING
MANIFOLD GAUGE
Hoses for the low
pressure
valve suction valve and
high
pressure
valve
discharge
valve should be connected securely
to
high
and low
respectively
on
the manifold
Refer
to
identification
marks
on
compressor
Low pressure
gauge
High
pressure
gauge
Manifold
gauge
Before
connecting
hoses close
valves
completely
Q
1fT
o
en
R 12
Vacuum
pump
r
S
Close
I
Cap
2
Service
valve
3 Cha rging hose
4
Packing
5
Check valve
Refrigerant
can
SH A045
Disconnection from
service valve
I
Fully close both valves of
mani
fold
gauge
2
Quickly
disconnect
two charging
hoses from
service
valves and install
caps
on
service valves
CAUTIDN
Do
not
over
tighten
valve cap
HA 13