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TM-9-2320-361-24-2 Page 850

TM-9-2320-361-24-2 Field Maintenance Manual Volume 2 for M44A2 Series Trucks

Page 850 of 1144


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TM 9-2320-361-24-2 0425 00 0425 00-2 ENGINE COOLANT HEATER HOUSING REPLACEMENT (Contd) REMOVAL 1. Remove three screw-assembled lockwashers (2) from heater housing (1). Discard screw-assembled lockwashers (2). 2. Separate heater housing (1) and remove heat exchanger (5) from heater housing (1). INSTALLATION 1. Ensure flame detector adapter (3) and exhaust tube (4) are aligned and install heat exchanger (5) in heater housing (1) with three screw-assembled lockwashers (2). 2. Install burner (WP 0424 00). 3. Install restriction thermostat (WP 0419 00). 4. Install flame detector switch (WP 0417 00). 5. Connect battery ground cable (WP 0126 00). 6. Release parking brake and remove wheel chocks (TM 9-2320-361-10).