Hino S5-LJ05E04A Workshop Manual page 561

12–26
THERMO-
STAT
T1 :
OPENING VALVE TEMPERATURE
(Beginning valve opening)
T2 :
LIFT OF OPENING COMPLETELY
CHECK TEMPERATURE
10 mm
{0.393 in.}
0 °C {°F} T1 °C {°F}
76.5°C
{169.7°F}
L1 :
L2 :
L :
L
L1
L2
COOLING (J05E)
INSPECTING THE COMPONENTS
1.
(1)
! CAUTION
•
•
VALVE LIFT
AMOUNT
SHTS021271100040
(2)
T2 °C {°F} TEMPERATURE
SHTS021271100041
NOTICE
The thermostat valve opening valve temperature (T1) is engraved
on the thermostat seat.
THERMOSTAT
SHTS021271100042
(3)
WHEN THE OPENING
IS COLD
(T2) C { F}
(4)
VALVE LIFT
AMOUNT
(5)
SHTS021271100043
INSPECTING THE THERMOSTAT
Submerge the thermostat in water for heating as shown in the fig-
ure.
To keep the thermostat away from the heat sources, support
it at the center with wire.
Stir the water in the reservoir well to keep the coolant tem-
perature equal.
Measure the temperature at which the thermostat valve starts to
open (opening valve temperature: T1).
Thermostat valve
standard opening
temperature: T1
Increase the coolant temperature to the full-open lift temperature
(T2) to measure the lift amount of the thermostat valve.
Thermostat valve
inspection full-open
lift temperature: T2
90C {194F}
Submerge the thermostat into water at ordinary temperature with
the valve fully opened. Check that the thermostat valve closes
completely within five minutes.
If found defective in inspection above, replace the thermostat.
76.5C {169.7F}
Valve lift amount: L
10mm {0.393in.} or more