ARMY TM 9-2815-256-24
AIR FORCE TO 38G1-96-2
MARINE CORPS TM 2815-24/5
Section IV. COOLING SYSTEM MAINTENANCE
This section provides maintenance for cooling system components. Components of cooling system not mentioned in this
section can be found in the end item maintenance manual.
If the engine has been operating and coolant is hot, allow engine to cool before you slowly loosen
filler cap and relieve pressure from cooling system. Failure to observe this warning could result in
severe personal injury.
3-9. THERMOSTAT AND HOUSING.
Drain coolant system if not already drained, refer to end item maintenance manual.
Loosen hose clamp and remove outlet hose from cover (4, FIGURE 3-2).
Remove one capscrew (1) and two capscrews (2) securing cover (4) to housing (8); remove cover (4) and gasket
(5). Discard gasket (5) and lockwashers (3).
Lift thermostat (6) from housing (8).
Loosen two hose clamps (10) and remove by-pass hose (11) from housing adapter (9) and water pump housing.
If installed, remove temperature sending unit.
Remove two capscrews (3) securing housing (8); remove housing (8) and gasket (12). Discard gasket (12).