ARMY TM 9-6115-645-24
AIR FORCE TO 35C2-3-444-12
MARINE CORPS TM 09244A/09245A-24/2
2-107.4 Installation.
a.
Screw oil pressure sender (2., FIGURE 2-30) into engine block.
b.
Connect electrical lead and dose left side engine access doors.
c.
Connect negative battery cable and close battery access door.
2-108
COLANT TEMPERATURE SENDER.
WARNING
Generator set exhaust manifold gets extremely hot. Use care when performing test on coolant
temperature sender. Failure to observe this warning could result in severe bums.
2-108.1 Testing.
a.
Shut down generator set.
b.
Open battery access door and disconnect negative battery cable.
c.
Open left side engine access doors.
d.
Disconnect electrical lead from coolant temperature sender (4., FIGURE 2-30).
e.
Set multimeter for ohms and connect positive lead to temperature sender terminal and negative lead to case.
Multimeter indication shall be greater than 300 ohms.
f.
Connect negative battery cable and start generator set.
g.
Allow the engine to operate while observing multimeter.
h.
Ohms indication should decrease as temperature rises.
i.
Shut down generator, set and disconnect negative battery cable.
j.
Replace coolant temperature sender if indications are not as above.
k
If replacement is not needed, connected electrical lead to sender.
I.
Close left side engine access doors.
m.
Connect negative battery cable and close battery access door.
2-108-2 Removal.
a.
Shut down generator set.
b.
Open battery access door and disconnect negative battery cable.
WARNING
Coolant can get very hot. Allow system to cool down before performing maintenance. Failure to
follow this warning could result in severe bums and injuries.
WARNING
Always remove radiator cap slowly to permit pressure to escape. Failure to follow this warning
could result in severe personal Injury.
c.
Slowly remove radiator cap (1., FIGURE 2-23).
d.
Open left side engine access doors, open engine block drain valve (3., FIGURE 2-30), and drain coolant into
suitable container.
e.
Disconnect coolant temperature sender (4.) electrical lead.
2-142 Change 3
