ARMY TM 9-6115-642-24
AIR FORCE TO 35C2-3-455-12
MARINE CORPS TM 09247A/09248A-24/2
2-39.4 Installation.
a.
Insert FUEL LEVEL indicator (14, FIGURE 2-14) into control panel.
b. Install clamp (13), washers (12), and nuts (11).
c.
Connect electrical leads and remove tags.
d. Raise and secure control panel.
e.
Connect negative battery cable and close access door.
2-40 COOLANT TEMP INDICATOR.
240.1
a.
b.
c.
d.
2-40.2
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
o.
p.
q.
r.
s.
t.
u.
Inspection.
Shut down generator set.
Release control panel by turning two fasteners and lower control panel slowly.
Inspect COOLANT TEMP. indicator for cracked lens, loose mounting, corrosion, and other damage.
Raise and secure control panel.
Testing.
Shut down generator set.
Open left side engine access door and disconnect negative battery cable.
Release control panel by turning two fasteners and lower control panel slowly.
Isolate generator set VOLTAGE adjust potentiometer by disconnecting wire 156A at terminal 1 and wire 157B
at terminal 2 of AC voltage regulator.
Set multimeter for ohms and connect between terminals L and R of generator set VOLTAGE adjust potentiometer.
Adjust potentiometer until multimeter indicates 117 to 143 ohms resistance.
Disconnect multimeter but do not disturb potentiometer setting.
Disconnect and isolate electrical lead from terminal S of COOLANT TEMP. indicator.
Connect jumper wire between disconnected wire 156A and terminal S of COOLANT TEMP. indicator.
Connect jumper wire between disconnected wire 157B and terminal G of COOLANT TEMP. indicator.
Connect negative battery cable and move generator set MASTER SWITCH to PRIME& RUN position.
COOLANT TEMP. indicator should indicate 116 to 164°F.
Move MASTER SWITCH to OFF position and disconnect negative battery cable.
Repeat steps e thru g, setting potentiometer between 58.5 and 71.5 ohms.
Connect negative battery cable and move MASTER SWITCH to PRIME& RUN position.
COOLANT TEMP. indicator should indicate 156 to 204°F.
Move MASTER SWITCH to OFF position and disconnect negative battery cable.
Replace COOLANT TEMP. indicator if indications are other than above.
Remove jumper wires and connect electrical leads to AC voltage regulator and COOLANT TEMP. indicator.
Raise and secure control panel.
Connect negative battery cable and close left side engine access door.
2-68
