TM-9-2320-361-24-2 Field Maintenance Manual Volume 2 for M44A2 Series Trucks
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TM 9-2320-361-24-2 0419 00 0419 00-2 ENGINE COOLANT HEATER RESTRICTION THERMOSTAT MAINTENANCE (Contd) REMOVAL NOTE Prior to removal, tag lead wires for installation. 1. Disconnect two leads (1) from restriction thermostat (3). 2. Remove two nut-assembled lockwashers (2), restriction thermostat (3), and two spacers (4) from two studs (5). Discard nut-assembled lockwashers (2). INSPECTION 1. Inspect restriction thermostat (3) for corrosion and bends. Replace if corroded or bent. 2. Check restriction thermostat continuity at room temperature. If continuity exists, replace restriction thermostat (3). CAUTION Do not place restriction thermostat in liquid for cooling. Placing restriction thermostat in liquid will cause damage to equipment. 3. Cool restriction thermostat to 20 °F (-6.7 °C). Check restriction thermostat continuity. If continuity does not exist, replace restriction thermostat. INSTALLATION 1. Install restriction thermostat (3) and two spacers (4) on two studs (5) with two new nut-assembled lockwashers (2). 2. Connect two leads (1) to restriction thermostat (3). 3. Install engine coolant heater blower motor (WP 0418 00). 4. Connect battery ground cable (WP 0126 00). 5. Release parking brake and remove wheel chocks (TM 9-2320-361-10).