SECTION III: SENDING UNITS, WARNING LIGHT SWITCHES, AND
TM 9-2350-256-20
WARNING HORNS
6-22 REPLACE ENGINE OIL TEMPERATURE SENDING UNIT, ENGINE OIL PRESSURE SENDING UNIT, AND
SWITCHES
THIS TASK COVERS
a. Removal
b. Installation
INITIAL SET-UP
Tools:
Material:
Equipment Condition:
Tool kit, general mechanic's
Compound, sealing (Appendix
Powerplant removed (see
(Appendix C, item 53)
D, item 25)
paragraph 3-1)
WARNING
Be certain MASTER switch is OFF when working on electrical system to avoid electrical shock and bums.
a. REMOVAL
1 Disconnect connector (1) from switch (2). Remove
switch.
2 Disconnect connector (3) from engine oil pressure
sending unit (4). Remove engine oil pressure
sending unit.
3 Disconnect connector (5). Remove main engine oil
pressure switch (6).
4 Disconnect connector (7) from engine oil
temperature sending unit (8).
5 Disconnect connector (9) from switch (10). Remove
engine oil temperature sending unit (8).
6 Remove switch (10).
b. INSTALLATION
NOTE
Apply sealing compound to threads of all
sending units (4 and 8) and switches (2 and 10).
1 Install switch (10).
2 Install engine oil temperature sending unit (8) and
connect connector (9) to switch (10).
3 Connect connector (7) to engine oil temperature
sending unit (8).
4 Install main engine oil pressure switch (6) and connect connector (5).
5 Install engine oil pressure sending unit (4) and connect connector (3).
6 Install switch (2) and connect connector (1).
7 Install test cables and hoses. Test run engine prior to installation. Observe for leaks.
NOTE
Follow-on maintenance: Install powerplant (see paragraph 3-1).
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