TM 5-4520-240-14
Figure 4-13. Burner head components, exploded view.
(1) Clean the thermocouple and lead with a cloth
b. Cleaning and Inspection.
dampened with dry cleaning solvent (fed. spec. P-
WARNING
D-680).
Clean parts in a well-ventilated area.
(2) Remove combustion deposits from the sensor
Avoid inhalation of solvent fumes and
end of the thermocouple with a fine-grit stone or
prolonged exposure of skin to cleaning
sandpaper. Replace the thermocouple if the sensor end
solvent. Wash exposed skin
is bent, burned, or severely corroded, if the lead is
thoroughly. Dry cleaning solvent (fed.
kinked or broken, or if the terminal is distorted or
spec. P-D-680) used to clean parts is
damaged.
potentially dangerous to personnel
c. Installation.
and property. Do not use near open
(1) If a new thermocouple is being installed, slide
flame or excessive heat. Flash point of
the compression nut (12, fig. 4-13) and compression
solvent is 100F (38C).
4-21