Thermostat, Outlet Elbow, Lines, and Fittings

TM 5-4320-234-12

d. Install the thermostat and connect the hoses

(1)

Drain the radiator and block by

removing plugs (2 and 3, fig. 3-1).

between the engine and radiator (para 4-30). Start the

(2)Remove and disassemble the thermostat, of

engine and allow it to run until the coolant reaches

elbow, lines, and fittings as shown in figure 4-15.

operating temperature. Check for coolant leaks and

correct if any are noted.

4-30. Thermostat, Outlet Elbow, Lines, and Fittings

a. Removal.

1. Drain plug

12.

Water outlet elbow

22.

Hose

32.

Elbow

2. Drain plug

13.

Gasket

23.

Hose clamp

33.

Oil cooler drain hose

3. Drain plug

14.

Thermostat

24.

Drain elbow

34.

Connector

4. Drain plug

15.

Thermostat ring

25.

Hose

35.

Elbow

5. Hose clamp

16.

Radiator drain tube

26.

Crankcase-to-cooler hose

36.

Tee

6. Hose

17.

Connector

27.

Elbow

37.

Nipple

7. Bypass tube

18.

Hose clamp

28.

Bypass valve

38.

Elbow

8. Connector

19.

Hose

29.

Nipple

39.

Bushing

9. Plug

20.

Hose clamp

30.

Bushing

40.

Crankcase coolant drain hose

10. Nut

21.

Elbow

31.

Cooler-to-crankcase hose

41.

Bushing

11. Lock washer

42.

Connector

Figure 4-15. Thermostat, outlet elbow, coolant and oil cooler lines and fittings, exploded view.

4-28