Quantcast Table 2-1. TROUBLESHOOTING PROCEDURES (Cont)

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TM 9-2815-226-34-1
Table 2-1. TROUBLESHOOTING PROCEDURES (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
(Cont)
Step 3. Check for dirty filter elements.
a.
Drain dirty fuel from fuel filter assembly (TM 9-2320-281-10).
b.
Replace filter element (TM 9-2320-281-20).
c.
Replace main fuel filter element (TM 9-2320-281-20).
Step 4. Check fuel tank for contamination.
Drain fuel tank and fill with clean fuel (TM 9-2320-281-20).
Step 5. Check for leaks in fuel supply (suction) lines to fuel pump.
Tighten all line connectors.
Step 6. Check no-air adjustment screw in fuel pump for proper opening or setting.
a.
Disconnect AFC input line from fitting on fuel pump.
WARNING
COMPRESSED AIR USED FOR CLEANING PURPOSES WILL NOT EXCEED 30 PSI
(207 KPA).  USE ONLY WITH EFFECTIVE CHIP GUARDING AND PERSONAL
PROTECTIVE EQUIPMENT (GOGGLES, SHIELD, GLOVES, ETC).  CAUTION TOO
MUCH PRESSURE WILL DAMAGE AFC BELLOWS.
b.
Apply 25 psi (172 kPa) air pressure to AFC unit and attempt start.
c.
If engine starts, reset no-air adjustment screw (para 3-84).
d.
If engine does not start, remove pump and set AFC plunger adjustment; then no-air adjustment screw
(para 3-84).
2-3


 


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