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

Page 640 of 1258

TM 9-2320-280-34 14-10. AMBULANCE HEATER REPAIR (MODEL 10530A) (Cont’d) 22. Remove four screw-assembled lockwashers (1) and receptacle (2) from mounting bracket (3). Discard screw-assembled lockwashers (1). 23. Remove nut and lockwasher assemblies (7) and (9), screw-assembled lockwasher (6), and ground strap (8) from housing (4) and hook bolt (5). Discard nut and lockwasher assemblies (7) and (9) and screw-assembled lockwasher (6). 24. Remove three screw-assembled lockwashers (13) and heat exchanger (17) from housing (4). Spread housing (4) just enough to clear exhaust tube (16) on heat exchanger (17). Discard screw-assembled lockwashers (13). 25. Scribe alignment marks (15) on burner assembly (12) and heat exchanger (17) to ensure proper alignment of burner assembly (12) to heat exchanger (17) during assembly. 26. Remove four nut and lockwasher assemblies (14), hookbolts (5), burner assembly (12), O-ring (11), and gasket (10) from heat exchanger (17). Discard nut and lockwasher assemblies (14), O-ring (11), and gasket (10). 14-40