TM 5-4320-300-144-39. THERMOSTATLocation/ItemActionRemarks2.DraincockLoosen and drain coolant into a container,until coolant is below level of thermostathousing.3.Radiator hoseLoosen hose clamp on(upper)water outlet flange.Remove hose fromflange.4.Water out-Remove hex head cap screws andlet flangelockwashers from flange. Removeflange.5.Water out-Remove.let flangegasketNOTEIt may be necessary to scrape gasketfrom mating surfaces. Make sure sur-faces are clean and free of damage thatwould prevent a good seal duringassembly.6.ThermostatRemove and discard.4-156
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