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D Handle the thermo unit with special care.
Never subject it to strong shocks or al-
low it to be dropped. Should it be
dropped, it must be replaced.
D Do not touch the thermo unit to the bot-
tom of the heated vessel.
80_C 47.5 X 56.8 Ω
26.2 X 29.3 Ω100_C
4. Thermo unit
S Drain the coolant, and remove the thermo
unit from the radiator.
S Immerse the thermo unit in the cool-
ant .
Thermometer
Replace the thermo unit.
OUT OF SPECIFICATION
MEETS
SPECIFICATION
:
Coolant temperature Resistance
YP******
CORRECT
5. Voltage
S Connect the pocket tester (DC20 V) to the
temperature gauge coupler.
YP******
Tester (+) lead ! Green/Red terminal
Tester (–) lead ! Frame ground
1
1
2
3
S Turn the main switch to on.
S Check for voltage (12 V) on the temperature
gauge lead.
The wiring circuit from main switch to tem-
perature gauge is faulty. Repair.
OUT OF SPECIFICATION
:
COOLING SYSTEM
ELEC