TM 10-4510-206-14
4-14.
WATER HEATER MAINTENANCE PROCEDURES (CONTD)
b.
Burner Head Assembly (Contd)
10.
11.
12.
13.
14.
15.
16.
Unscrew and remove ignition sight tube (19 through 22) from holder
(14).
CAUTION
Hold peep sight over table to prevent dropping glass
to floor.
Unscrew and remove peep sight cap (19) from nipple (20).
Remove peep sight glass (21) and two peep sight gaskets (22).
Separate gaskets from glass.
Unscrew and remove close nipple (23) from coupling (24).
Unscrew and remove coupling (24) from bushing (25).
Loosen setscrew (26) securing scanner tube (27) to holder (14) and
slip tube from holder.
Unscrew and remove bushing (25) from scanner tube (27).
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