2-34. WATER HEATER BURNER HEAD AND NOZZLE ASSEMBLY (CONT)
Inspect scanner tube (26), bushing (28), coupling (24), and close nipple (23) for damaged threads. Inspect
scanner tube for clogs or obstruction.
Inspect scanner tube (26) for dirt or foreign matter. Clean with a soft cloth if necessary. If scanner tube is broken
or damaged, notify intermediate direct support maintenance.
Repair burner head and nozzle by replacing the defective components and making needed adjustments. Remove
and replace only those items necessary to make repair. Clean other components as needed.
Wash electrode of spark plugs (12) with soapy water, rinse in clean water, and dry thoroughly.
Drycleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and
gloves and use only in a well-ventilated area. Avoid contact with skin, eyes, and
clothes and don't breathe vapors. Do not use near open flame or excessive heat.
The flash point is 100 138° F (38 - 59° C). If you become dizzy while using cleaning
solvent, get fresh air immediately and get medical aid. If contact with eyes is
made, wash your eyes with water and get medical aid immediately.
Wash nozzle (14) and adapter (15) in drycleaning solvent (Item 10, App C). Scrub nozzle with small brush. Dry
Wash peep sight glass (21) in soapy water, rinse in clean water, and dry thoroughly.
Wash scanner tube (26) in drycleaning solvent (Item 10, App C) to remove deposits in tube and dry thoroughly.
Clean scanner (3) with soft cloth.