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TM 5-2420-222-20-2
ENGINE OIL PRESSURE SWITCH
This task covers:
a.
Removal (page 2-468)
c.
Inspection/Replacement (page 2-469)
b.
Cleaning (page 2-468)
d.
Installation (page 2-469)
INITIAL SETUP
Tools
Materials/Parts - Continued
Handle, ratchet, 112-inch drive
Tags, marking (item 30, Appendix C)
Socket, deep, 12-point, 1/2-inch
drive, 1-inch
Personnel Required
Socket, 1/2-inch drive
One
Materials/Parts
Equipment Condition
Cleaning compound, solvent
(item 4, Appendix C)
Battery ground cable disconnected
Rags, wiping (item 21, Appendix C)
(page 2-696)
Fuel filter assembly removed (page 2-277)
ACTION
LOCATION
ITEM
REMARKS
REMOVAL
1.
Terminal (1)
Connector (2)
a.
Tag (page 2-137).
b.
Unplug.
2.
Flywheel
Pressure switch (4)
Using oil pressure switch, 1/2-inch drive
housing (3)
socket and ratchet handle, unscrew and
take out.
CLEANING
NOTE
For more information on how to clean parts, go to General Maintenance Instructions (page 2-137).
WARNING
Electrical parts solvent cleaning compound (trichlorotrifluoroethane) is flammable, and reacts
violently with aluminum, titanium, barium, lithium, samarium, and sodium potassium. Cleaning
compound fumes displace air and it may be carcinogenic. Boiling point is 114°F (460C). Do not
wear jewelry. Wear rubber gloves and use only in well ventilated area. Avoid contact with skin,
eyes, and clothes and do not breathe vapors. Do not use near open flame or excessive heat. If
you become dizzy while using cleaning compound, get fresh air immediately and get medical aid.
If contact with eyes is made, wash your eyes with water and get medical aid immediately.
2-468
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