4
TM 5-3805-293-23-2
FIELD MAINTENANCE
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ENGINE LUBRICATION TESTS AND INSPECTIONS
0033
Engine Oil Pressure Test, Excessive Engine Oil Consumption Inspection
INITIAL SETUP
Tools and Special Tools
References
0
0
Tool Kit, General Mechanic's
WP 0005
0
(WP 0354, Item 83)
0
0
Coupling, Hose (1/4" NPT, External Nipple)
WP 0086
0
(WP 0354, Item 24) (2)
WP 0087
0
0
Coupling, Pipe (1/4" NPT) (WP 0354, Item 25)
WP 0090
0
(2)
0
WP 0092
0
Coupling, (1/4" 18 NPTF) Service Oil Sam-
Equipment Condition
pling Adapter (WP 0354, Item 26)
0
0
Gage, Pressure, Dial Indicating (WP 0354,
Machine parked (TM 5-3805-293-10)
0
Item 34)
0
Drawings Required
Gage, Differential, Dial Indicating (145 psi)
0
TM 5-3805-293-24P, Figure 32
(WP 0354, Item 35)
0
0
Materials/Parts
Estimated Time to Complete
0
0
Rag, Wiping (WP 0355, Item 25)
1.5 Hr
0
0
Personnel Required
0
Two
0
ENGINE OIL PRESSURE TEST
00033
Low Oil Pressure
00033
The following conditions will cause low oil pressure:
Oil level is low in crankcase.
Restriction exists on oil suction screen.
Connections in ol lines are leaking.
i
Connecting rod bearings or main bearings are worn.
Rotors in oil pump are worn.
Oil pressure relief valveis operating incorrectly.
High Oil Pressure
00033
High oil pressure can be caused by the following conditions:
Spring for oil pressue relief valve is installed incorrectly.
r
Plunger for oil pressure relief valve becomes jammed in closed position.
Excessive sludge in oil.
0033-1
