.....
The
second
test
will
check the accuracy
of
the meter
in
the
BIG
"H"
and
"C"
positions.
Connect a 389.3-ohm resistor between the
BIG
lead
wire
of
the water temperature
gauge
and
the ground
lead
wire. The
water temperature
gauge
is
normal
if
its pointer indicates the C
position when the specified voltage
is
applied
to
the circuit
and
if
its pointer indicates the H position when the resistor
is
changed
to
19.2·ohms.
If
either one
or
both indications
are
abnormal, replace the water temperature meter
with
a new one.
WATER TEMPERATURE METER
POSITION
TEMP RESISTANCE
CD
37°C 389.3 n
CID
127.5°C
19.2
n
OIL LEVEL GAUGE
Check the oil level switch
for
continuity
between BI/W
and
OIR
lead
wires.
If
the tester
does
not
show the value
of
0 - 1
ohm when the switch ring
is
in bottom, file the contact
sur-
face
or
replace the
unit.
.....
BIG
ELECTRICAL
SYSTEM
6·14
Temp. gauge
Temp gauge
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