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TM 9-2350-267-20
AUXILIARY
ENGINE MISFIRES
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Check for dirty air cleaner falter element. Clean or replace falter element (TM 9-
2350-267-10).
Chock for dirty or clogged fuel filters. Replace fuel filter elements if necessary
(p 13-16).
Open fuel falter drain cocks to remove water and contaminants from filters.
Inspect APU fuel lines and fittings for leaks. Tighten or replace defective lines or
fittings (p 13-25 thru 13-29).
If fuel contamination is suspended, drain fuel tanks and replace with new fuel (TM 9-
2350-267-10).
Disconnect fuel return line at injunction pump quick-dkmnect. Use screwdriver
to push open disconnect valve. Operate fuel pumps and bleed fuel into suitable
container to remove any air in the fuel system.
If fuel flow is not steady or is weak, check fuel lines for obstructions or restrictions.
Repair or replace as required (p 13-25 thru 13-29).
Use screwdriver to push open disconnect valve; operate fuel pumps and bleed fuel
into suitable container to remove any air in the fuel system.
TA310621