ARMY TM 9-6115-642-24
AIR FORCE TO 35C2-3-455-12
MARINE CORPS TM 09247A/09248A-24/2
2-93.3
a.
b.
c.
d.
e.
f.
g.
h.
2-93.4
a.
b.
c.
Testing.
Remove coolant high temperature switch, paragraph 2-93.1.
Suspend coolant high temperature switch in container of clean 50/50 mixture of antifreeze and water so that
sensing element is completely immersed but not touching sides or bottom of container.
Suspend reliable thermometer in container. Do not allow end of thermometer to rest on container bottom.
Set multimeter for ohms and connect between high temperature switch terminals. Multimeter should indicate
open circuit.
Gradually heat antifreeze/water mixture so that heat will be evenly distributed and observe thermometer and
multimeter.
At 220 to 230°F (105 to 11O°C), multimeter should indicate continuity.
Replace coolant high temperature switch if it fails to operate as above.
Install coolant high temperature switch, paragraph 2-93.4.
.
Install coolant high temperature switch (5, FIGURE 2-25) into thermostat housing.
Install electrical leads and remove tags.
Connect negative battery cable and close access door.
2-94 MAGNETIC PICKUP.
2-94.1 Removal.
a.
Shut down generator set.
b. Open both engine access doors and disconnect negative battery cable.
NOTE
Magnetic pickup is located on right side of flywheel housing.
c. Tag and disconnect electrical Ieads to magnetic pickup (7, FIGURE 2-25).
d. Loosen nut (6) and unscrew magnetic pickup (7) from flywheel housing.
2-94.2 Cleaning and Inspection.
a.
Remove magnetic pickup, paragraph 2-94.1.
WARNING
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.
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.
b. Clean magnetic pickup with filtered compressed air and clean, Iint-free cloth (ltem 6, Appendix C) lightly moist-
ened with dry cleaning solvent (Item 19, Appendix C).
c.
Inspect magnetic pickup for cracked casing, corrosion, stripped or damaged threads, and bent or broken con-
nector pins.
d. Install magnetic pickup, paragraph 2-94.3.
2-124
Installation
