lOA
Servicing
except
the
power steering gear
is
explained
in
Section
10
(Manual Steering).
10A-A.
GENERAL
STEERING SERVICE
10A-A-1.
Measurement
of
Steering
Effort
1.
Apply the parking brakes.
2.
Run
Lhe
engine
at
idle
and
give
the
steering wheel
several stationary swings
(for
about
two
minutes)
to
raise
the
temperature
of
the
steering fluid.
In this case, turn the wheel from stopper
to
stopper.
3.
H
ook
a spring balance
on
to
the wheel
and
measure
the steering
effort
by turning the wheel.
Fig.
10A
- 1
The steering
effort
should be less than 4 kg (8.8
lb)
when taking
the
measurem
ent
by giving
the
wheel
one r
ot
ation clockwise
and
counterclockwise
respec-
tively from
the
straight forward direction.
Standard steering
effort
· · •
No more than 4 kg (8.8
lb)
If
the measurement is more
than
the specified value,
the conceivable causes are lack
of
fluid, incomplete
air
bleeding, leakage
of
oil from the return hose
c
on
-
nections, slippage
of
the
V
belt, improper function
of
the oil
pump
and power steering gear,
and
lack
of
the
tire
air
pressure among
othe
r
s.
10A-A-2.
Pump
Fl
uid
Pressure Check
1.
Install a power steering gauge
set
(
49
1232
670)
between the oil
pump
outlet
and
the
gear
and
pitman
inlet.
Be
sure
to
bleed
air
after
the
installati
on.
Fig
.10A-2
2. After
Lh
e engine has been warmed
up,
open
the
stop
valve
to
the
full with the engine
run
at
about
lOA:
1
1500
rpm
and
record the oil pressure when the steer-
ing wheel is fully turned clockwise and
counterclock-
wise respectively.
Oil
pressure
to
be generated
· ·
-
Not
less
than
65
kg/cm2 (924 lb/jn2)
Oil
temperature
50
-
60
°C
(122
-1
40
° F)
If
the oil pressure is smaller than
65
kg/cm
2
(924
lb/in
2
)
there is something wrong with either the oil
pump
or
the gear
and
pitman.
Note:
Do
not
leave
the
steering
wheel
fully
turned
for
a
long time,
or
the
oil
temperature
will
rise,
having adverse
effect
on
the
parts in
the
oil line,
such as
the
oil pump,
piping
and
gear.
3.
Nexl,
keep the engine run
at
about
15
00
rpm and
record
the
oil pressure
when
closing
the
stop
valve
littJe by little.
Oil
pres.sure
to
be
generated - --
Not
less
than
65
kg/cm2 (924 lb/in2)
Oil
temperature
50
,..,,
60
°C (122,..,,
140
°
F)
If
the oil pressure generated is smaller than
65
kg/
cm2
(924 lb/in
2 ), there
is
something wrong with
the
oil
pump.
Note:
Take care so as
not
to
close
the
stop
valve
for
more
than
15
seconds, because this
will cause
the
oil temper-
ature
to
rise, bringing
about
adverse effect
on
the
oil
pump.
4.
If
the oil pressure generated
is
not
more than
65
kg/cm2 (924 lb/in2)
in
the
test in
(2)
and
is
65
kg/cm2 (924
lb/inl)
or
more
in
the
test
in
(3),
you
may consider
that
there is something wrong with
the inside
of
the
gear
and
pitman.
The oil pressure should be
65
/kg/
cml (924 lb/in2)
or
more when
the
steering wheel is fully turned
clockwise
and
counterclockwise.
The
maximum oil pressure should be
65
kg/cm2
(
924
lb/in2)
or more when the stop valve is closed
while looking
at
the
oil pressure gauge.
10A-A-3
. Exchange
of
Fluid
1.
Jack
up
the
front
of
the
car.
2. Remove the hose
on
the pressure side from the pump
and receive the outflowing fluid in a receptacle.
3.
Remove the fluid from the
pump
by turning the
engine several times
by
the starter
motor.
Then,
turn
the steering wheel clockwise and counterclock-
wise
to
the full
to
draw
off
the fluid until
no
more
fluid gets
out
of
the
hose.
Note:
Do
not
start
the
engine. Do
not
run
the
starter
for
a
long
time,
either.
To Next Page
Loading...
