TM 10-4320-344-242.21.41 Thermostat Maintenance, Model 609-A. (Continued)Allow engine to cool before removing thermostat to avoid being burned by hotengine.Failure to obey this warning may result in serious personal injury.a .Loosen hose clamp (Figure 2-156,1) and disconnect water return hose (2) fromthermostat housing (3).b .Remove four bolts (4), lock washers (5), water outlet (3), and gasket (6).Discard lock washers (5) and gasket (6).c .Remove thermostat (7).2.21.41.2 Repair.Do not use cleaning solvent without proper ventilation and clothing.Do notsmoke or use near open flame or excessive heat.Dry cleaning solvent ispotentially dangerous to personnel and property.Clean parts in a well-ventilated area.Avoid inhalation of solvent fumes.Wear goggles and rubbergloves to protect eyes and skin.Wash exposed skin thoroughly.Failure toobey this warning may result in personal injury or death.a .Clean all gasket (6) mounting surfaces with rag dampened in cleaning solvent.b .Inspect allc .Replace all2.21.41.3 Testing.components and mounting hardware for damage.defective components.Ensure thermostat is not resting on bottom of container.a.Place thermostat (7) in boiling water.b.Thermostat (7) should fully open.c .If thermostat (7) does not fully open, replace it.2.21.41.4 Installation.Place cone shaped end of thermostat away from cylinder head assembly.Failure to do so will result in damage to equipment.a .Install thermostat (7) in cylinder head (9).b .Position new gasket (6) and water outlet (3) on cylinder head (9) and securewith four new lock washers (5) and bolts (4).Torque bolts (4) to 15 ft-lbs(20 N•m).c .Slide water return hose (2) on water outlet (3) and secure with hoseclamp (1).2-334
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
