4-68. FLAME HEATER NOZZLE AND VALVE ASSEMBLY (COVERED SYSTEM).
C l e a n i n g and Inspection.
P l u g fuel inlet (1) and outlet (2) openings with pipe plugs.
Dry cleaning solvent is flammable. Do not use near an
o p e n flame. K e e p a fire extinguisher nearby when sol-
v e n t i s u s e d . U s e only in well-ventilated places. Fail-
u r e to do this may result in injury to personnel and
d a m a g e to equipment.
C l e a n nozzle and valve assembly (3) with dry cleaning solvent. Take off heavy
c a r b o n deposits with a stiff brush.
C h e c k that nozzle and valve assembly f u e l inlet (1) and fuel outlet (2) threads
are not crossthreaded.
C h e c k that nozzle and valve assembly ( 3 ) is not cracked or damaged. Get a
new nozzle and valve assembly if it is c r a c k e d o r d a m a g e d .
END OF TASK