ARMY TM 9-6115-641-24
AIR FORCE TO 35C2-3-456-12
2-92. COOLANT TEMPERATURE SENDER.
2-92-1.
a.
b.
c.
d.
e.
f.
g.
h.
i.
2-92-2.
a.
b.
c.
d.
2-92-3.
a.
b.
c.
d.
2-92-4.
a.
b.
c.
Testing.
Shut down generator set.
Open left side engine access door.
Disconnect and tag electrical lead from coolant temperature sender (4, Figure 2-25).
Set multimeter for ohms and connect to coolant temperature sender terminal and casing. Muitimeter indication
should be greater than 300 ohms.
Start generator set and observe multimeter.
As engine operates and coolant temperature rises, multimeter indication should decrease.
Shut down generator set.
Replace coolant temperature sender if indications are other than above.
Connect electrical lead, remove tag, and close left side engine access door.
Removal.
Shut down generator set.
Open left side engine access door and disconnect negative battery cable.
Tag and disconnect coolant temperature sender (4, Figure 2-25) lead.
Unscrew coolant temperature sender (4) from thermostat housing.
Cleaning and Inspection.
Remove coolant temperature sender, paragraph 2-92-2.
Use clean, low pressure air, 30 psi maximum. Wear protective glasses when using
compressed air. Failure to follow these instructions could result In eye injury.
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.
Clean coolant temperature sender with filtered compressed air and cleaning cloth (Item 6, Appendix C) lightly
moistened with approved solvent (Item 18, Appendix C).
Inspect coolant temperature sender for cracked casing, corrosion, and damaged threads and connector.
Install coolant temperature sender, paragraph 2-92-4.
Install coolant temperature sender (4, Figure 2-25) into thermostat housing.
Connect electrical lead and remove tag.
Connect negative battery cable and close access door.
2-128
Installation.
