clock DATSUN 210 1979 Owner's Guide

shoWn
in

Fig
AC
I
I

When

valve
stem
is

fully
screwed

the
valve
is

front
seated
and
valve

path

Low

pressure

gauge

Compound
pressure
gauge
Air

Conditioning

and
the
tenter

path
are
blocked
When

valve

stem
is
backed
off
the

paths
are

opened

High
pressure
gauge

Back
seated

Full
counter

clockwise

I

VA

l

C
f

f
f
J

l
r

To
low
side
To
vacuum

pump
01

To

high
side

service
valve

refrigerant
can
service
valve

Fig
AC
II
Manifold

Gauge

ConnectIon
to

service
valve

I

Fully
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

The

refrigerant
gas
will
be

discharged

since
check
valve
is

open
when

pressing
charging
hose

onto
service

valve

3

Next
loosen
the
connection
fit

ting
of

charging
hose
at
manifold

gauge
side
for
2
to
3
seconds
to

purge

any
air
inside

charging
hose

by
the

pressurized
gas
in

system

DIsconnection
from

servIce
val
ve

I

Fully
close
both
valves
of
mani

fold

gauge

2
Disconnect

two

charging
hoses

from
service
valves
At

this
time

the

gas
will

be

discharged
until
check
valve

is

closed
Therefore
disconnect
hose

quickly

WARNING

Work
with

fingers

protecte
with

cloth

against
frostbite

by
reo

frigerant
FronHeated

Fun

clockwise

r

AC243

HANDLING
SERVICE
VALVE

An
automatic

check
valve
is

built

into
service

valve
When
this
valve

presses
against
the
connection

fiUing

that
is

when

charging
hose

is
con

nected
to
service

valve
the
valve
is

open
When

charging
hose
is

discon

nected
the
valve
is
closed
auto

matically
Always
observe
the
follow

ing

usage
precautions

1ts

Close

I

Cap

2
Service
valve

3

Charging
hose
ir

Open

4

Packing

5
Check
valve

AC244

Fig
AC
12
Service
Valve

I

Always
install
valve

cap
after

using
service
valve

When

high

speed
operation
is

per

AC
I0
formed
without
valve

cap
a

negative

pressure
will

gradually
build

up
at

the

low

pressure
side
of

system
and
air

may
be
sucked
in
In
addition
dirt

and

dust
will

easily
enter
the
valv
result

ing
in

foreign
matter

entering
the

system

CAUTION

00
not
over

tighten
valve

cap

2
Check
valve
wiJI
be
half

opened

during
connection
and

disconnection

of

charging
hoses
and

refrigerant
will

be

forcefully
discharged
Therefore

connect
and
disconnect

charging
hoses

quickly
while

pressing
flare
nut
of

charging
hose

against
service

valve

WARNING

Work
with

fingers
protected
with

cloth

against
frostbite

by
reo

frigerant

3

Since
close
contact
between
the

thread
of
valve

cap
and
the
thread
of

service

valve
will

prevent
gas
leakage

keep
these
areas
clean
and

free
of

scratches
and

damage

4

Since

packing
of

charging
hose

will
be
lost

during
long
use

always

check

packing
prior
to

installing
charg

ing
hose

HANDLING
CAN
TAP

A

wide

variety
of
can

taps
are

available
The

following
procedures

apply
to

conventional
can

taps

For

the
correct

usage
refet
to

the

manufacturer

s
instructions

I

Connect

charging
hose
to
the

center

fitting
of
manifold

gauge
At

this
time
confirm
that

both
stems
are

fully
turned
in

frontoSeated

2
Turn

can

tap
handle

fully
coun

terlockwise
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
See

Fig
AC
13

5
Turn

the
handle

fully
counter

clockwise
to
raise
the
needle

Refriger

ant

gas
will
flow

up
to
the
center

fitting
of
manifold

gauge
See

Fig
AC

14

Air

Conditioning

6
Loosen
the
connection

at
the

center

fitting
of

manifold

gauge
for
a

Clockwise
few
seconds
to

purge
air
inside

charg

ing
hose
See

Fig
AC
14

Counterclockwise

j

3

@

I

Can
tap
handle

2

ChlcginS
hose

3
Needle

4

Refrigerant
can

AC246

Fig
AC
13
Can

Top

Purging
air

R

12

To

L9w
pressure

service
valve
AC247

Fig
AC
14

Purging
Air

Ta

High
pressure

service
valve

f

r

AC181A

Fig
AC
15

Discharging
System

AC
ll
DISCHARGING
SYSTEM

The

pressurized
refrigerant

gas
in

side

system
must
be

discharged
to
a

pressure
approaching
atmospheric

pressure
prior
to

evacuating
refrigerant

inside

system
This

operation
should

be
also
made
to

pennit
safe
removal

when

replacing

system
components

A
Close

high
and
low

pressure

valves

of
manifold

gauge
fully

2

Connect
two

charging
hoses
of

manifold

gauge
to

their

respective

service
valves

WARNING

Securely
connect

high
pressure
dis

charge
service
valve
to
that
of

manifold

gauge
with
a
hose
also

connect
low

pressure
suction
serv

ice
valve
to
that
of
manifold

gauge

For

locations
of

high
and
low

pres

sure

discharge
and
suction
service

valves
see

Fig
AC
29

3

Open
both
manifold

gauge
valves

slightly
and

slowly
discharge
refriger

ant
from

system
See

Fig
AC
15

WARNING

Protect

fingers
with
cloth

against

frostbite

by
refrigerant
when
con

necting
the

charging
hose

to
the

service

valve
or

disconnecting
it

therefrom

Nole
Do

not
allow

refrigerant
to
rush

out
Otherwise

compressor
oil
will

be

discharged
along
with

refriger

ant

EVACUATING

SYSTEM

I

Connect

high
and
low

pressure

charging
hoses
of
manifold

gauge
to

their

respective
service
valves

of

sys

tem
and

discharge
refrigerant
from

system
Refer
to

Discharging
System

WARNING

Securely
connect

high
pressure
dis

charge
service
valve
to
that
of

manifold

gauge
with
a
hose
also

connect
low

pressure
suction

servo

ice

valve
to
that
of
manifold

gauge

For

locations
of

high
and

low

pres

sure

discharge
and
wction
service

valves

see

Fig
AC
29

r

Air

Conditioning

SERVICE
DATA
AND

SPECIFICATIONS

GENERAL

SPECIFICATIONS

Compressor

Model

Type

Displacement

Cylinder

Bore
x

stroke
cc
ell
in

rev
SC206

Yoke

100
6
10

mm
in

47

6
x
28
1

1
874
x
1
106

Clock
wise

View
from
drive
end
Direction
of
rotation

Lubrication

oil

Type

Capacity
in

refrigeration

system
cc
US
11

OZ

Imp
11
oz
SUNISO
5GS

237
8
0
8
3

Refrigerant

Type

Capacity
kg

lb
R
12

0
8
to
1
0
1

8
to
2
2

INSPECTION

AND
ADJUSTMENT

Belt

tension

mm
in

kg

lb

Fan

belt

applied
pressure
8
to
12

0
31
to
0
47

10
22

8
to
12

0
31
to
0
47

10
22
A
C

compressor
belt

applied
pressure

F
I
C
D

adJustment

Automatic
700

rpm

650

rpm

at
Du

position
When

AlC
is

ON

F

LC
D
is

actuated

800

rpm

800

rpm

at
Nu

position
Engine
model
Transmission
When

AlC
OFF

Manual

AI4
AI5

Clutch
hub
to

pulley
clearance
mm
in

0
4
to
0

6
0

016
to
0
024

AC
42