TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download

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TM 9-2320-280-34 14-11. AMBULANCE HEATER REPAIR (MODEL 10530B) (Cont’d) CAUTION The overheat switch is adjusted and sealed at the factory. To prevent damage, do not bend or twist the switch or change the setting of the adjustment screw. 17. Remove two screw-assembled lockwashers (1) and overheat switch (2) from heater body (8). Discard screw-assembled lockwashers (1). 18. Loosen nut (4) and remove flame detector switch (3) and washer (5) from heat exchanger fitting (6). 19. Turn two dzus fasteners (9) and remove cover plate (10) from heater body (8). 20. Turn igniter (11) counterclockwise and remove from igniter tube (7). 14-56