ARMY TM 9-6115-464-12
AIR FORCE TO 35C2-3-445-1
NAVY NAVFAC P-8-624-12
b. Cleaning and Inspection.
(1) Clean day tank fuel level and low fuel cutoff switch with filtered compressed air and a soft bristle
brush or wipe with a clean lint-free cloth lightly moistened with an approved solvent.
(2) Inspect switch for cracked casing, corrosion, damaged floats, stripped or damaged threads and bent
or broken connector pins.
c.
Testing.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Open the drain on the bottom of the day tank and allow the fuel to drain into a suitable container.
Disconnect electrical connector from day tank fuel level and low fuel cutoff switch.
Using an ohmmeter, check for continuity between switch connector pins A and B and between pins
C and D. Continuity should exist indicating switches are closed.
Connect fuel solenoid connector and float switch connector.
Place START-RUN-STOP switch (32, Figure 2-1) in RUN position and BATTLE SHORT switch in ON
position.
When fuel transfer pumps have refilled day tank, return both switches to the original position.
Disconnect fuel solenoid connector and float switch connector.
Check for open circuit between pins A and B and between pins C and D.
Replace switch if the above continuity requirements are not met.
d. Installation.
(1) Screw day tank fuel level and low fuel cutoff switch onto day tank (Figure 4-13).
(2) Reconnect electrical connector.
4-25 FUEL SOLENOID VALVE AND RECTIFIER ASSEMBLY.
a.
Removal.
NOTE
Test fuel solenoid valve in accordance with paragraph c. below before removal.
(1) Disconnect fuel supply hose, electrical connector and injector return line (Figure 4-13).
(2) Unscrew tee from day tank assembly.
(3) Remove elbows and tee from fuel solenoid valve.
(4) Disconnect electrical connector from rectifier assembly.
(5) Remove screw and captive washer and remove rectifier assembly.
b. Cleaning and Inspection.
(1)
(2)
(3)
(4)
Clean solenoid valve with dry, filtered compressed air and a soft bristle brush or wipe with a clean,
lint-free cloth lightly moistened with an approved solvent.
Clean rectifier assembly with a clean, lint-free cloth.
Inspect solenoid valve for cracks, corrosion, stripped or damaged threads, bent or broken connector
pins and evidence of shorting or other damage.
Inspect rectifier assembly for cracks, corrosion, stripped or damaged threads, and evidence of shorting
or other defects.
4-41
