ENGINE LUBRICATION SYSTEM - TM-5-2410-237-230041

TM 5-2410-237-23

THEORY OF OPERATION - CONTINUED

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ENGINE LUBRICATION SYSTEM

Oil Lines. Provide passage for oil through the lubrication system.

Oil Cooler Bypass Valve. Provides immediate lubrication to the engine when starting the engine cold. When the oil

warms, the valve will close and the oil will pass through the oil cooler. The valve also allows the engine to be lubricated

when the cooler has blockage.

Oil Filter Bypass Valve. When the engine is started cold, the valve opens and allows for immediate lubrication of the

engine. The valve will also open if the oil filter has blockage.

Oil Filter. Removes harmful particles from the engine lubricating oil.

Oil Cooler. Reduces the temperature of the engine lubricating oil by transferring the heat of the oil to the engine cooling

system.

Oil Pump. Gear driven by the crankshaft, the pump causes oil to circulate through the engine lubricating system.

Oil Pan. Provides containment for the engine lubricating oil. Also seals the bottom of the engine.

ROCKER ARM

SHAFT

OIL PRESSURE

CONNECTION

OIL PASSAGE

(TO TURBOCHARGER

OIL PASSAGE

OIL MANIFOLD

(TO IDLER GEAR)

PISTON COOLING

ORIFICES

CAMSHAFT

BEARING BORE

OIL

FILTER

OIL COOLER

OIL FILTER

BYPASS

BYPASS VALVE

VALVE

TURBOCHARGER

ENGINE OIL

COOLER

387-051

OIL PAN

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