2-36. 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 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.
Dry cleaning solvent P-D-680 is toxic and flammable. Wear protective
goggles and gloves and use only in a well-ventilated area. Avoid contact
with skirt, eyes, and clothes and dont breathe vapors. Do not use near
open flame or excessive heat. The flash point is 100 - 138°F (37 - 59oC).
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), screen (29), and adapter (15) in drycleaning solvent (Item 1, App C). Scrub
nozzle with small brush. Dry parts thoroughly.
Wash peep sight glass (21) in soapy water, rinse in clean water, and dry thoroughly.
Wash scanner tube (26) in dry cleaning solvent (Item 10,
and dry thoroughly.
Clean scanner (3) with soft cloth.
App C) to remove deposits in tube