ARMY TM 9-6115-645-24
AIR FORCE TO 35C2-3-444-12
MARINE CORPS TM 09244A/09245A-24/2
2-109.2 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.
Tag and disconnect coolant high temperature switch (5.) electrical leads.
f.
Unscrew high temperature switch (5.) from lower thermostat housing.
2-109.3 Cleaning and Inspection.
a.
Shut down generator set.
b.
Remove coolant high temperature switch, paragraph 2-109.2.
WARNING
Dry cleaning solvent Is flammable and toxic to eyes, skin, and respiratory tract Skin/eye protection
required. Avoid repeated/prolonged contact. Good general ventilation Is normally adequate.
WARNING
Use low pressure air, 15 psi maximum. Wear protective glasses when using compressed air.
Failure to follow this warning could result In severe personal Injury.
c.
Clean high temperature switch with dry, filtered compressed air and cleaning cloth (item 8, Appendix C) lightly
moistened with dry cleaning solvent (Item 20, Appendix C).
d.
Inspect high temperature switch for cracked casing, corrosion, stripped or damaged threads, and bent or bro-
ken connector pins.
e.
If no repair is needed, install coolant high temperature switch, paragraph 2-109.4.
2-109.4 Installation.
a.
Install coolant high temperature switch (5., FIGURE 2-30) in lower thermostat housing.
b.
Connect electrical leads, remove tags and dose left side engine access doors.
c.
Install radiator cap (1., FIGURE 2-23).
d.
Connect negative battery cable and dose battery access door.
2-144 Change 3
