TM 9-2320-209-34-2-3 (1) Burner and heat exchanger. FRAME 1 1. Take off gasket (1) from igniter (2). Throw away gasket (1). Make a note whether the amount of carbon on the igniter (2) is a light coating or heavy build-up. Throw igniter away. 2. Take off gasket (3) and preformed packing away gasket and preformed packing. Make burner (5). Do not take burner apart any CAUTION (4) from burner (5). Throw a note of amount of carbon on further. Do not damage screen or wick when scraping carbon. If they are damaged, get new burner assembly (5). 3. Scrape carbon from burner assembly (5) using a sharp tool. 4. Inspect heat exchanger (6) for dents or possible leaks. Get new heat exchanger (6) if it is dented or leaking. WARNING Eye shields must be worn when using compressed air. Eye injury can occur if eye shields are not used. 5. Soak heat exchanger (6) in water for a few minutes. Blow out with compressed air. END OF TASK 21-30