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TM 10-4320-324-14
4-54. Low Oil Pressure Cut-out Switch Replacement.
This task covers:
a.
Testing
b.
Removal
c.
Installation
d.
Follow-on Maintenance
INITIAL SETUP:
Tools
Equipment Condition
Tool kit, general mechanics: automotive, item 32,
Negative battery cable disconnected (para 4-
section III, appendix B
30).
General Safety Instructions
Materials/Parts
Engine oil is extremely hot when engine is
Tags, identification, item 17, appendix E
operating. Severe burns may result from
contact with hot oil.
Gasket - 111-8659
Lockwasher - 111-7861
a.
Testing.
(1) Connect leads of electrical circuit tester to each terminal of switch.
(2) Tester should indicate an open circuit.
(3) With tester still connected, press OIL PRESSURE BYPASS switch on control panel. Tester should now indicate
continuity.
(4)
If low oil pressure cut-out switch fails test, remove and replace switch.
NOTE
Refer to tags to install wires properly.
If oil pressure switch is defective, skip to step b.
(5)
If oil pressure switch is not defective, connect wires to switch.
4-161
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