Water Temperature Switch - HYOSUNG TE 450 Service Manual

WATER TEMPERATURE
SWITCH
◉ ◉ REMOVAL
● Remove the front fender. (Refer to page 7-3)
● Drain engine coolant. (Refer to page 2-12)
● Disconnect the water temperature switch lead wire
coupler.
● Remove the water temperature switch ① .
◉ ◉ INSPECTION
● Check the engine coolant temperature by testing it
at the bench as shown in the figure. Connect the
water temperature switch ①
place it in the WATER contained in a pan, which is
placed on a stove.
● Heat the water to raise its temperature slowly and
read the column thermometer ②

Water temperature switch

operating temperature
OFF → → ON
ON → → OFF
Multi circuit tester set : 09900-25008
If the resistance noted to show infinity or too much
different resistance value, replace the water tempera-
ture switch with a new one.
◉ ◉ INSTALLATION
Install the water temperature switch in the reverse
order of removal.
Pay attention to the following points :
● Install a new O-ring ③
to the O-ring.
● Tighten the water temperature switch to the speci-
fied torque.
Water temperature switch
● Pour engine coolant. (Refer to page 2-12)
● Bleed air from the cooling circuit.
(Refer to page 2-12)
● Install the front fender.
to a circuit tester and
and the ohmmeter.
Standard
Approx. 120 ℃ ℃
(248 ℉ ℉ )
Approx. 113 ℃ ℃
(235 ℉ ℉ )
and apply engine coolant
: 13 N∙ ∙ m (1.3 kgf∙ ∙ m)
②
①
CAUTION
● ● Take special care when handling the water
temperature switch. It may cause damage if it
gets a sharp impact.
● ● Do not contact the water temperature switch ① ①
and the column thermometer ② ②
COOLING SYSTEM 5-8
Water
with a pan.
③
①