FIGURE 2-16. Thermostat Housing.

TM 55-1905-223-24-4

e. Heat the water. Write down the temperature at which the thermostat begins to open and when it is fully open.

The thermostat must begin to open at 181 2 (83 1 ). The thermostat must fully open to at least a

.375-inch (9.5 mm) space between the seal sleeve and the brass part of the thermostat.

g. Replace the thermostat if it does not operate as described.

REPAIR

Repair at this level of maintenance is by replacement of: Thermostat (4) and gasket (5).

FIGURE 2-16. Thermostat Housing.

2-60