ARMY TM 9-611 5-644-24
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
j.
Replace coolant temperature sender if indications are not as above.
k. If replacement is not needed, connect electrical lead to sender.
l.
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 burns 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.
f.
Unscrew temperature sender (4) from engine head.
2-108-3 Cleaning and Inspection.
a. Shut down generator set.
b. Remove coolant temperature sender, paragraph 2-108-2.
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 nor-
mally 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 temperature sender with dry, filtered compressed air and cleaning cloth (Item 8, Appendix C) lightly moist-
ened with dry cleaning solvent (Item 20, Appendix C).
d.
Inspect temperature sender for cracked casing, corrosion, and damaged threads and connector.
e. If no repair is needed, install coolant temperature sender, paragraph 2-108-4.
2-155
