ARMY TM 9-6115-670-14&P
4-85
v. Install radiator support brackets (3) replace cable ties, and secure with two bolts and lock and flat
washers (1), and two screws and flat and lock washers (2).
w. Bleed fuel system (para 4.29).
TEST
a. Drain fuel day tank assembly (perform steps a through e of SERVICE).
b. Refer to Figure FO-1 and tag and disconnect connector J7 (14) from engine wiring harness
connector P7 (15).
c. Connect multimeter leads on pins C and D at connector J7 (14). There should be continuity.
d. Clean fitting (17), apply sealing compound to threads of fitting, and install in hole (6) of fuel day tank
(4).
e. Connect hand siphon hose to fitting (17). Siphon fuel from overflow container into fuel day tank (4).
When sufficient fuel has been added, the closed lower switch will open and no continuity will be
observed. Stop siphoning.
f. Siphon fuel from overflow container into fuel day tank (4) through fitting (16). When sufficient fuel
has been added, the closed lower switch will open and no continuity will be observed. Stop
siphoning.
g. If continuity is observed, replace switches (13).
h. Connect leads of multimeter to pins A and B at connector J7 (14). There should be continuity.
i. Add fuel to overflow container, if necessary, and siphon additional fuel back into fuel day tank (4).
j. When sufficient fuel has been added, the closed upper liquid level switch will open and no continuity
will be observed.
k. If continuity is observed, replace switches (13).
l. If both switches are good, remove siphon.
m. Add sealing compound to threads of fitting (16) and install in fuel day tank (4).
NOTE
Both lower and upper switches are connected to
connector J7. If one switch is faulty, both switches and
connector J7 must be replaced.
