Bobcat 741 - Page 335

THERMOSTAT
Removal And Installation
The thermostat is of the wax type, valve cracking
temperature is not affected by pressure
in the water
jacket. The jiggle valve removes air from the system
during
filling the cooling system and to reduce the
warm-up time.
Drain the cooling system.
Remove the radiator hose at the thermostat housing.
Remove the bolts from the housing [A).
Remove the housing and the thermostat [B].
Inspection
Put the thermostat in a container filled with water. Heat
the water. Measure the temperature at which the valve
cracks and the valve lift is
fully open.
Cracking Temperature
........ . ..... 179
0
F. (82
0
C.)
0.315 inch (8 mm)
Lift Temperature . ... ... .. .. .. .. .. . . . 203
0
F. (95
0
C.)
If the thermostat is not within specifications, replace the
thermostat.
Added Sept.
90
-70-57-
741, 742,:743, 74305 Bobcat Loader
Service Manual