HYOSUNG Aquil GV650, Service Manual

Page: 116 / 222

COOLING FAN THERMO-
SWITCH
◉
REMOVAL
●
Drain engine coolant. (Refer to page 2-24)
● Remove the radiator cover. (Refer to page 5-2)
●
Disconnect the cooling fan thermo-switch lead wire
coupler
① .
● Remove the cooling fan thermo-switch ② .
◉
INSPECTION
●
Check the thermo-switch closing or opening tempera-
tures by testing it at the bench as shown in the figure.
Connect the thermo-switch
③ to a circuit tester and
place it in the OIL contained in a pan, which is placed
on a stove.
● Heat the oil to raise its temperature slowly and read
the column thermometer
④
when the switch closes
Multi circuit tester set : 09900-25008
◉
INSTALLATION
● Install a new O-ring ⑤ and apply engine coolant to
the O-ring.
●
Tighten the cooling fan thermo-switch to the specified
torque.
Cooling fan thermo-switch
: 13 N
∙ ∙
m (1.3 kg
∙ ∙
m)
● Pour engine coolant. (Refer to page 2-24)
●
Bleed air from the cooling circuit. (Refer to page 2-25)
●
Install the radiator cover.
COOLING SYSTEM 5-6
Cooling fan thermo-switch
operating temperature
Standard
ON
→ →
OFF
OFF → → ON
Over 88 ℃ ℃
(190
℉ ℉
)
Approx. 95
℃ ℃
(203 ℉ ℉ )
CAUTION
● ●
Take special care when handling the thermo-
switch.
It may cause damage if it gets a sharp impact.
● ●
Do not contact the cooling fan thermo-switch
③ ③ and the column thermometer ④ ④ with a pan.
Oil
③
④
⑤
①
②