2-36. WATER HEATER BURNER HEAD AND NOZZLE ASSEMBLY (CONT)
High voltage is present on this equipment. Do not perform maintenance
with power on. Death or serious injury may result.
Water heater is hot after being used and may cause injury to personnel
if safety precautions are not followed. Allow heater to cool before
maintenance is preformed.
Fuel is toxic and flammable. Spilled fuel is a fire hazard and eye
irritant. Wipe up spilled fuel to avoid injury and fire.
The scanner is a sensitive device. Rough
handling can damage the scanner and result
in possible failure of flame safeguard
Disconnect two ignition cables
(1), fuel line (2), and scanner (3).
Remove three nuts (4),
lockwashers (5), and nozzle
and electrode assembly (6)
from burner tube (9).
Do not remove the burner tube
unless it is necessary.
Remove four nuts (7), lock-
washers (8), burner tube (9),
and gasket (10) from water