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PLATE-WEAR 4416151 - Caterpillar

4416151 PLATE-WEAR Caterpillar parts
Alternative (cross code) number:
Caterpillar 4416151 PLATE-WEAR

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Number on catalog scheme: 8
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Primary Filter/Water Separator
Illustration 3 g03346826
Typical example
The primary filter/water separator (1) is located between the fuel tank and the fuel transfer pump. The primary filter/water separator (1) provides a 10 micron filtration level.The primary filter/water separator is supplied loose. The primary filter/water separator is supplied with water in fuel sensor (2).Secondary Fuel Filter
Illustration 4 g03346829
Typical example
The secondary fuel filter (1) is located after the fuel transfer pump. The secondary fuel filter (1) provides a 4 micron filtration level.Fuel Pump Assembly
Illustration 5 g03346818
Typical example
The fuel pump assembly consists of a low-pressure transfer pump (3) and a high-pressure fuel injection pump (1). The pump assembly is driven from a gear in the front timing case at half of the engine speed. The fuel injection pump (1) has two plungers that are driven by a camshaft. The fuel injection pump (1) delivers a volume of fuel three times for each revolution. The stroke of the plungers are fixed.The injector will use only part of the fuel that is delivered by each stroke of the pistons in the pump. The solenoid (2) for the fuel injection pump (1) is controlled by the ECM. This maintains the fuel pressure in the fuel manifold (rail) at the correct level. A feature of the fuel injection pump (1) allows fuel to return to the tank continuously.The fuel injection pump has the following operation:
Generation of high-pressure fuelThe fuel output of the fuel injection pump is controlled by the ECM in response to changes in the demand of fuel pressure.Shutoff
The engine shuts off by preventing the electronic unit injectors from injecting. The ECM then closes the suction control valve to prevent the pressure in the fuel manifold (rail) from increasing.Control
Illustration 6 g03505592
Typical example of the electrical control system for the fuel system
(1) Electronic Control Module (ECM)
(2) Throttle position sensor
(3) Fuel pressure sensor
(4) Engine oil pressure sensor
(5) Inlet manifold pressure sensor
(6) Air inlet temperature sensor
(7) Inlet manifold air temperature sensor
(8) Coolant temperature sensor
(9) Secondary speed/timing sensor
(10) Primary speed/timing sensor
(11) Fuel injection pump
(12) Solenoid for the fuel injection pump
(13) Electronic unit injectors The ECM determines the quantity, timing, and pressure of the fuel in order to be injected into the fuel injector.The ECM uses input from the sensors on the engine. These sensors include the speed/timing sensors and the pressure sensors.The ECM controls the timing and the flow of fuel by actuating the injector solenoid.The amount of fuel is proportional to the duration of the signal to the injector solenoid.The ECM controls the fuel pressure by increasing or decreasing the flow of fuel from the fuel injection pump.Fuel Injectors
Illustration 7 g03347338
Typical example
(1) Electrical connections
(2) Clamping bolt for the electronic unit injector
(3) Clamp
(4) Combustion washer
(5) O-ring
(6) Fuel inlet The fuel injectors contain no serviceable parts apart from the O-ring seal and the combustion washer. The clamp and setscrew are serviced separately.When the ECM sends a signal to the injector solenoid, a valve inside the injector opens. The valve allows the high-pressure fuel from the fuel manifold to enter the injector. Fuel is also diverted via the

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