ARMY TM 9-6115-642-24
AIR FORCE TO 35C2-3-455-12
MARINE CORPS TM 09247A/09248A-24/2
2-90.3 Cleaning and Inspection.
a.
Remove low oil pressure switch, paragraph 2-90.2.
WARNING
Use clean, low pressure air, 15 psi maximum. Wear protective glasses when us-
ing compressed air. Failure to follow these Instructions could result in eye lnju-
ry.
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 low oil pressure switch with dry, filtered compressed air and electrician’s brush or wipe with clean, lint-
free cloth (Item 6, Appendix C) lightly moistened with approved solvent (Item 19, Appendix C).
c.
Inspect low oil pressure switch for cracked casing, stripped or damaged threads, corrosion, or other damage.
d.
Install low oil pressure switch, paragraph 2-90.4.
2-90.4 Installation.
a.
Install low oil pressure switch (1, FIGURE 2-25) into fitting on left side rear engine wall
b.
Connect electrical leads and remove tags.
c.
Install negative battery cable and close access door
2-91 OIL PRESSURE SENDER.
2-91.1 Testing.
a.
Shut down generator set.
b.
Open left side engine access door
c.
Disconnect electrical lead from oil pressure sender (2, FlGURE 2-25).
d.
Set multimeter for ohms and connect to oil pressure sender terminal and casing. Multimeter should indicate
216 to 264 ohms. If not, tap side of case and recheck.
e.
Start generator set and observe multimeter. As the engine cranks and accelerates to rated speed, the multime-
ter indication should decrease to a value between 100 ohms and 33 ohms.
f.
Shut down generator set.
g.
Replace oil pressure sender if above resistance requirements are not met.
h.
Connect electrical lead and close left side engine access door
2-91.2
Removal.
a.
Shut down generator set.
b.
Open left side engine access door and disconnect negative battery cable
c.
Tag and disconnect oil pressure sender (2, FIGURE 2-25) electrical lead.
d.
Unscrew oil pressure sender (2) from fitting on left side rear engine wall
Change 3 2-121
