TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 14-10. AMBULANCE HEATER REPAIR (MODEL 10530A) (Cont’d) 6. Clean heat exchanger (1), secondary blower housing (3), housing (2), and guard (4) with drycleaning solvent. Remove all traces of solvent and allow to air dry before assembly. 7. Inspect ignition control unit (5) and receptacle (6) for broken connections or damage. Replace either if damage or broken connections are evident. 8. Inspect igniter assembly (9) for loose or broken leads (7) or damaged element (8). Replace igniter assembly (9) if leads (7) are broken or loose, or element (8) is damaged. 9. Connect multimeter to leads (7) to check igniter assembly (9) for proper resistance. Resistance should be 2.2 Ohms. If resistance is not 2.2 Ohms, replace igniter assembly (9). 14-44