5-10
COOLING
AND
LUBRICATION
SYSTEM
INSPECTION
• Check the thermo-switch closing
or
opening temperatures by
testi
ng
it at the bench
as
shown in the figure. Connect the
thermo-switch
(j)
to a circuit tester and place it in the oil con-
tained
in
a pan, which is placed on a stove.
• Heat the oit to raise its temperature slowly and read the col-
umn the
rm
ometer
~
when the switch closes
or
opens.
ctiJ
09900-25008: Multi
circuit
tester
set
~
Tester
knob
Indication:
Cont
i
nuity
test
(el)))
~
Cooling
fan
thermo-switch
operating
temperature
Standard (OFF-+ON): Approx.
BB
' C (190' F)
(ON-+OFF):
Appro
•.
B2
' C
(1
BO
' F)
I CAUTION I
• Do not
contact
the
cooling
fan
thermo-switch
<D
and
the
column
thermometer
<%>
with
a pan.
INSTALLATION
Instan the cooling
fan
thermo-switch in the reverse order of
removal. Pay atlention to the following points:
• Apply engine coolant to the O-ring.
•
Tighten the cooling fan thermo-switch to the specified torque.
~
Cooling
Ian
thermo-switch
:
20
N·m (2.0
kgl-m
,
14
.5
Ib-II)
ICAUTIONI
• Take special care when
handling
the
cooling
fan
thermo-switch
.
00
not
subject
it
to
strong
blows
or
allow
it
to
be
dropped
.
• Replace
the
removed O-
ring
with a
new
one.
• After installing the cooling fan thermo-switch, be sure to
add
engine coolant. (
c::7
2-14)
Oil
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