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O-200-D & X Series Engine Installation and Operation Manual
2-17
3 January 2017
Engine Description
2-3.5. Lubrication System
The engine lubrication system delivers lubricating oil throughout the engine to various
bearings, bushings, and engine components. The wet sump lubrication system consists of
an internal engine-driven oil pump, a fixed, non-adjustable pressure relief valve, an oil
sump and oil sensing ports. An optional oil cooler adapter is available to connect a remote
mounted oil cooler.
Figure 2-12. Lubrication Schematic
2-3.5.1. Oil Pump
The engine-driven, positive displacement, gear type oil pump (Figure 2-13) consists of
two meshed steel gears that revolve inside the oil pump cavity machined in the accessory
case. The camshaft drives the oil pump drive gear, which drives the oil pump driven gear.
The oil pump driven gear is supported by a shaft pressed into the accessory case and the
oil pump cover plate. The oil pump drive gear shaft is supported by bushings pressed into
the accessory case.
OIL
SUCTION
TUBE
OIL PRESSURE
RELIEF VALVE
CRANKSHAFT
BEARINGS
CAMSHAFT
BOSS
INTAKE
EXHAUST
PUSHROD
HOUSING
PUSHROD
HYDRAULIC
LIFTERS
OIL SUMP
OIL PUMP GEARS
OIL FILTER AND
BYPASS
ASSEMBLY
OIL COOLER
ADAPTER
OIL
SUCTION
TUBE
OIL PRESSURE
RELIEF VALVE
CRANKSHAFT
BEARINGS
CAMSHAFT
BOSS
INTAKE
EXHAUST
PUSHROD
HOUSING
PUSHROD
HYDRAULIC
LIFTERS
OIL SUMP
OIL PUMP GEARS
OIL FILTER AND
BYPASS
ASSEMBLY
OIL COOLER
ADAPTER
Содержание O-200-D
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