SECTION V: TROUBLESHOOTING
If cause of filter restriction is excessive algae
notify Direct Support
Maintenance to drain and clean fuel tanks
and fill with uncontaminated fuel.
Disconnect fuel line connecting mechanical fuel
pump assembly and fuel/water separator at
fuel/water separator. Position a container to catch
fuel. With MASTER and fuel pump switches in ON
position, crank the engine. If there is no fuel flow
from disconnected fuel line, replace mechanical
(gear type) fuel pump assembly (see paragraph 4-5).
Ii there is fuel flow, reconnect fuel line and go to
Do not remove or disturb the center (final)
filter element. If the center (final) filter
element is removed, the element must be
D Loosen air bleeder valve on top of fuel/water
separator. With MASTER and fuel pump switches in
ON position, crank the engine. If there is no fuel
flow from air bleeder valve, replace outer
fuel/water separator elements (see paragraph 4-15).
Disconnect fuel line connecting fuel/water separator
and engine at elbow on left front engine shroud.
Position a suitable container to catch fuel from fuel
line. With MASTER and fuel pump switches in ON
position, crank the engine. If no fuel flows from line,
replace final filter in fuel/water separator (see
paragraph 4-15). If problem is not corrected after
above checks, notify Direct Support Maintenance.
If engine does not shutoff using fuel shutoff
switch, use manual fuel shutoff handle to
F With MASTER switch in on position, have an
assistant operate FUEL SHUTOFF switch several
times. Listen for a click from engine. If no click can
be heard, troubleshoot fuel shutoff solenoid (see
paragraph 2-19). If click can be heard, notify Direct