maintenance DATSUN 210 1979 Owner's Manual

B6

Y
Electrica

System

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11111111
111

777
Rea

window

1

j
glass

W
777
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r7

U
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ID

3
BE537

Method
2

Start

engine
and

turn
on
window

defroster

system
With
a
direct
current

voltmeter

setup
as
shown
in

Fig

BE

51
check
each
heat

wire
for

dis

continuity
lfmeter

indic
ates
12

Y9lts

or
0

on
a

specific
wire
that

line
is

broken
Normal
indication
6

volts

Break
in

that
line
can
then
be

detected

by
moving
positive
lead

of

meter

along
line

until
an

abrupt
varia

tion

in
meter

indication
is

encoun

teredo

Fig
BE

51

Method
3

With
an
ohmmeter

setup
as
shown

in

Fig
BE
52

place
one
lead
at
one

end

of
a

heat
wire

and
the
other
in

the

middle
section
of
that
wire
If
meter

registers
on
a

specific

grid
line
a
value

twice
as

much
8S
on

any
other
line

that
line
is

broken

A

break
in
tha
t
line
can
then

be

located

by
an

abrupt
variation
in

meter
indication

as
test
lead

moves

along
broken
heat

wire
Defogged
area

Broken
heat
wire

Fogged
area

Fig
BE
50
Broken
Filament

n

I

I

SE539

Fig
BE
52

Checking
for
Broken

Filament
with

phmmder

FILAMENT

MAINTENANCE

Repair
equipment

I

Conductive
silver

composition

Dupont
No
4817

2

Ruler
30
em
12
in

long

3

Drawing
pen

4

Heat

gun

5
Alcohol

6
Cloth

Repair
procedure

I

Wipe
broken
heat
wire

and
its

surrounding
area
clean

with
a

cloth

dampened
in

alcohol

2

Apply
a

small

amount
of
conduc

tive
silver

composition
to

tip
of

draw

ing

pen

Note
Shake
silver

composition
con

tainer
before

use

3
Place
ruler

on

glass

along
broken

line
to
be

repaired

Deposit
conductive

silver

composition
on

break
with
draw

ing
pen

Slightly
overlap
existing
heat

wire
on

both
sides

preferably
5

mm

0
20
in

of
the

break

BE
22
88

N
N

cci

4

r
reak

Heat
wire

I

I
L
r

GJ

I
Ruler

BE540
Ora

wing
pen
Unit
mm

in

Fig
BE
53

Pmitioning
Ruler

4

Wipe
clean
silver

composition

from

tip
of

drawing
pen

5
After

repair
has
been

completed

check

repaired
wire

for

continuity

This
check
should
be
conducted
10

minutes
after
silver

composition
is

deposited

Note
Do
not
touch

repaired
area

while
test
is

being
conducted

Drawing
pen

Rear

window

1

Heat
wire

2

Silver

composition

3
Ruler
@

iI

aE541

Fig
BE

54

Depositing
Silver

Compo
ition
in
Place

6

Apply
a

consla11t
stream
of
hot

air

directly
to
the

repaired
area
for

approxUnately
20
minutes

with

a
heat

gun
A
minilnum

distance
of
3

em
1
2

in

should
be

kept
between

repaired

area
and
hot
air
outlet
If

a
heat

gun
is

not
available
let
the

repaired
area

dry

for
24
hours

After

repair

Wipe
repaired
area
clean

with
a

soft
clean
cloth

Note
Do
not
use
a

cleaning
solvt
nt

containing
much

soapy
water

DATSUN

210
Model

8310
Series

SECTIONAC

AIR
CONDITIONING

CONTENTS

DESCRIPTION

OUTLINE
OF
AIR
CONDITIONER

REFRIGERATION
SYSTEM

AIR
FLOW

VACUUM
SYSTEM

ELECTRICAL
CIRCUIT

GENERAL
SERVICE

REFRIGERANT
R
12

COMPRESSOR
OIL

MAINTENANCE

GENERAL
SERVICE
INSTRUCTIONS

SAFETY
PRECAUTIONS

EVACUATING
AND

CHARGING
SYSTEM

CHECKI
NG
FOR
LEAKS

REFRIGERANT
LEVEL
CHECK

COMPRESSOR
OIL
LEVEL
OHECK

PERFORMANCE
TEST

REFRIGERANT

LEAKS

SERVICE
PROCEDURES

FAST
IDLE
ACTUATOR

IDL
E
PULLEY
AND
COMPRESSOR

DRIVE
BELT

COMPR
ESSOR

CONDENSER

RECEIV
ER

DRIER

REFRIGERANT
LINES
I

COOLING
UNIT

EXPANSION
VALVE

THERMOSTAT

MAIN
RELAY

HEATER
UNIT

WATER
COCK
AC
2

AC
2

AC
3

AC
5

AC
6

AC
7

AC
9

AC
9

AC
9

AC
9

AC
9

AC
9

AC

1

AC14

AC15

AC
17

AC17

AC17

AC18

AC1B

AC19

AC19

AC
20

AC
20

AC
21

ACc21

AC
22

AC
22

AC
23

AC
23

AC
23
BLOWER
MOTOR

RESISTOR

AIR
CONDITIONER

CONTROL

FAN
SWITCH

MICROSWITCH

LOW
PRESSURE
SWITCH

MAGNET
VALVE

FUSE

REPLACEMENT

VACUUM
HOSE
DIAGRAM

WIRING
DIAGRAM

COMPRESSOR
MODEL
SC206

PRELIMINARY
CLEANING

COMPRESSOR
CLUTCH

SHAFT
SEAL

CYLINDER
HEAD

AND
VALVE
PLATE

DISCHARGE
AND
sU
CTiON

CONNECTORS

TROUBLE
DIAGNOSES
AND

CORRECTIONS

AIR

CONDITIONER
DIAGNOSES

BLOWER
MOTOR
DIAGNOSES

COMPRESSOR
DIAGNOSES

COMPRESSOR
CLUTCH
DIAGNOSES

VACUUM
SYSTEM
DIAGNOSES

PERFORMANCE
TEST

DIAGNOSES

PERFORMANCE
CHART

SERVICE
DATA
AND

SPECIFICATIONS

GENERAL
SPECIFICATIONS

INSPECTION
AND
ADJUSTMENT

TIGHTENING
TORQUE

SPECIAL
SERVICE
TOOLS
AC
23

AC
23

AC
23

AC
23

AC23

AC
24

AC
24

AC24

AC
24

AC
25

AC
26

AC
27

AC
27

AC
28

AC30

AC30

AC32

AC
32

AC
33

AC34

AC35

AC36

AC37

AC
41

AC
42

AC
42

AC
42

AC
43

AC
44

REFRIGERANT
R
12

The

refrigerant
used
in
the
air

conditioner
is

generally
called
Re

frigerant
12
R
12
No
other

refrig

erant
than
the
above

refrigerant
should

be
used

Note
Exercise

care
when

handling
re

frigerant
as
it
is

stored
under

high

pressure

COMPRESSOR
OIL

The

SUNISO
5GS

refrig
ration

lubricant
should
be
used
to
assure
the

successful

compressor
operation
Use

of
oils
other
than

recommended
or

mixing
of

the
oil
with

other
oils
would

cause
chemical
reaction

or
lead
to

lowered

viscosity
or

deficient
lubrica

tion

The
oil

absorbs
moisture

as
it
con

tacts
the
air

This

points
out
the
need

for

care
not
to

expose
it

to
atmos

phere
for

an
extended

period
of
time

MAINTENANCE

The

following
checks
and
main

tenance
are

especially
important
to
the

air
conditioner

I

Check

refrigerant
level

2
Check

refrigerant
leaks

3
Check

compressor
drive

belt
for

proper
deflection

4

Even
in

the
off
season
turn
the

compressor
for
10
minutes

at
least

once
a
month

by

running
the

engine
at

1

500

rpm

GENERAL

SERVICE

INSTRUCTIONS

If
dirt
water
or
air
enters

the
air

conditioner

system
it

will
be

seriously

affected
Be

sure
to
observe

the

following

I

Always
keep
the

working
place

clean

and

dry
and
free
from
dirt
and
Air

Conditioning

GENERAL
SERVICE

dust

Wipe
water
off
from
the
line

fittings
with
a

clean
cloth
before
dis

connecting

2

Have
all

necessary
tools

in

prepar

ation
beforehand

and
have
tools
clean

and

dry

3

Handling

plug
when

the

system

line
is

disconnected

4

Handling

compressor
oil

For
details
refer
to
each

descrip

tion
in
this

manual

SAFETY

PRECAUTIONS

WARNING

1
Since
direct
contact
of
the

liquid

refrigerant
with

your
skin

will

cause
frostbite

always
be
carelul

when

handling
the

refrigerant

Always
wear

goggles
to

protect

your

eyes
when

working
around

the

system

2
The

refrigerant
service
container

has
a
safe

strength
However
if

handled

incorrectly
it
will
ex

plode
Therelore

always
follow

the
instructions
On
the

label
In

particular
never
store
it
in
a
hot

location
above
520e

1260F

or

drop
it
from
a

high
height

3
The

refrigerant
gas
is
odorless

and
colorless
and

breathing

may

become
difficult
due
to
the
lack

of

oxygen
Since
the

relrigerant

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
itself

is
nonflam

mable
However

a
toxic

gas

phosgene
gas
is

produced
when

it

contacu
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

The

above

precautions
are
essen

tial

in

handling
of

Refrigerant

12
and
their
strict
observation

AC
9
requires
sufficient

training

Therefore
it
is
of
first

impor

tance
that

any
other

personnel

than
a
well
trained
serviceman

should
not
be

allowed
to
handle

the

refrigerant

EVACUATING
AND

CHARGING

SYSTEM

During

servicing
use
caution
to

keep
air

from

getting
into

refrigerant

When
air

enters
the

system
all

refriger

ant
must
be
evacuated

from

system

prior
to

charging
new

refrigerant
Air

in

refrigerant
has
the

following
delete

rious
effects

1
Since
the
condensation

tempera

ture
of

the
air
is

extremely
low
the
air

will
not

be
condensed
when

refrigerant

gas
is
condensed
in
the
condenser

and

the
air

will
thus
remain
in

gaseous

fonn

Consequently
the
effective

thermal
transmission
area
of
condenser

for

refrigerant
gas
will

be
reduced
and

refrigerant
gas
to
be

condensed
will

be

reduced
The

pressure
rise
will
become

proportional
to
the
volume

of
the
air

in

system

2
When
air
and

refrigerant
are

r
tixed
in

system
a

chemical
reaction

will
be

produced
and

hydrochloric

acid
which
will

adversely
affect
the

aluminum

copper
iron
and
other

materials
in

system
may
be

generated

HANDLING
MANIFOLD

GAUGE

The

pressure
at
the

high
and
low

sides
of

system
should
be
measured

when

evacuating
and

charging

refrig

erant
and
when

diagnosing
trouble
in

the

system
The
manifold

gauge
is
used

for
these

purposes
A

manifold

gauge

has
two

pressure

gauges
a
low

pressure

gauge
and
a

high
pressure

gauge
These

gauges
are

connected
to
the

high
and

low
side
service

valves
of

system

through
flexible

charging
hoses
The

construction

of
manifold

gauge
is