California Air Tools 3010 Service Manual Page 114

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4-12 COOLING SYSTEM
Thermostat
Thermostat Remo val
Tilt up the cargo bed.
Drain the coolant (see Coolant Change in the Periodic
Maintenance chapter).
Remove:
Coolant Temperature Switch Lead Connector [A]
Thermostat Housing Cap Bolts [B]
Thermostat Housing Cap [C]
Remove:
Locating Screw [A]
Thermostat [B]
Thermostat Installation
Replace the thermostat housing gasket with a new one.
Install the locating screw.
Tighten:
Torque - Thermostat H ousing Cap Bolts: 7.8 N·m (0.80
kgf·m, 69 in·lb)
Adjust the coolant (see Coolant Change in the Periodic
Maintenance chapter).
Thermostat Inspection
Remove the thermostat, and inspect the thermostat valve
[A] at room temperature.
If the valve is open, replace the thermostat with a new
one.
To check valve opening temperature, suspend the ther-
mostat [A] in a container of water and raise the tempera-
ture of the water.
The thermostat must be completely submerged and must
not touch the container sides or bottom. Suspend an ac-
curate thermometer [B] in the water. It must not touch the
container, either.
If the measurement is out of the specified range, replace
the thermostat with a new one.
Thermostat Valve Opening Temperature
Standard: 81 84°C (1 78 183°F)
Thermostat Valve Full Opening Temperature
Standard: 95°C (203°F)
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