ARMY TM 9-6115-604-12
NAVY NAVFAC P 8 633-12
(3) Short to engine ground the disconnected sender lead from OIL PRESSURE SENDER MT1 (see Figure 3-3).
LUBE OIL PRESSURE gage pointer should now deflect full scale upwards.
(4) Replace LUBE OIL PRESSURE gage (12, Figure 4-75) that fails this test Reinstall sender lead on OIL
PRESSURE SENDER MT1 on the engine block (see Figure 3-3) after test.
(5) Replace oil pressure sender if gage operates properly.
(6) Check wiring using FO-2, and check sender in accordance with paragraph 4-66 if gage is good.
b.
Remove.
(1) Shut off power. Tag and disconnect wiring and resistor from LUBE OIL PRESSURE gage M1 (12, Figure 4-
75).
(2) Remove hexagonal nuts and lockwashers at rear of cabinet C door. Mounting bracket can be removed and
LUBE OIL PRESSURE gage M1 (12) will slide out from front of door.
c.
Install
(1) Install LUBE OIL PRESSURE gage M1 from front of door (12, Figure 4-75) while assembling bracket from
the rear.
(2) Secure with hexagonal nuts and lockwashers provided.
(3) Connect wires and resistors and discard tags.
(4) Set 24 V dc CONTROL POWER CIRCUIT BREAKER CB1 to ON.
4-121. LUBE OIL TEMP GAGE M2 (11, Figure 2-1). LUBE OIL TEMP gage M2 indicates engine oil temperature.
Dangerous voltage levels may be present at components located within cabinet C.
Observe all applicable safety precautions as outlined in Chapter 1, Section III , of
this manual.
a Test.
(1) Set 24 V dc CONTROL POWER CIRCUIT BREAKER CB1 to ON.
(2) Disconnect sender lead from OIL TEMP sender MT2 mounted on the engine block (see Figure 3-3) LUBE
OIL TEMP gage M1 (11, Figure 2-1) pointer should to zero.
(3) Short to engine ground the disconnected lead from OIL TEMP sender MT2. LUBE OIL TEMP gage M2 (11)
pointer should now deflect upwards full scale.
(4) Set 24 V dc CONTROL POWER CIRCUIT BREAKER CB1 to OFF.
(5) Replace LUBE OIL TEMP gage M2 (11, Figure 2-1) that falls this test. Reinstall lead on OIL TEMP sender
MT2 after test.
(6) Replace oil temperature sender If gage operates correctly.
(7) Check wiring using FO-2, and check sender in accordance with paragraph 4-65 if gage is good.
b.
Remove. See Figure 4-75.
(1) Turn off power. Tag and disconnect wiring and resistor from LUBE OIL TEMP gage M2 (1).
(2) Remove hexagonal nuts and lockwashers at rear of cabinet C door. Mounting bracket will come free and
LUBE OIL TEMP gage M2 will slide out from front of door.
4-184
