Case CX350D Service Manual page 79

Engine - Engine and crankcase
Engine - Static description
The control provided by the control unit applies to the range from injection to air intake and exhaust, including fuel
injection quantity, injection timing, air intake restriction, EGR, and idling speed.
Cylinder block
The cylinder block is made of cast iron, and it has an equal center distance for each bore and a high rigidity, and the
center of the crankshaft matches the center of the block. Tighten the bearing cap using the plastic region rotational
angle tightening method with the ladder frame structure.
Cylinder liner
A cylinder liner that matches with the cylinder block bore inner diameter is selected, and the identification number is
stamped on the left side of the cylinder.
Piston
The piston is a strut cast autothermatic piston made of aluminum alloy, and the combustion chamber is the round
re-entrant type.
Cylinder head
The cylinder head is made of cast iron and has four valves per cylinder. The angle tightening method has been
adopted for the cylinder head bolt to further improve its reliability and durability.
Crankshaft
The crankshaft uses tufftrided steel, and each of the journal diameter grades are marked on the No. 1 balance weight.
EGR system
The EGR system is controlled by the engine control module (ECM) according to various data, including the water
temperature, engine speed, and engine load, to recirculate the exhaust gas for purification. The primary components
are the EGR valve, EGR cooler, and various sensors.
Connecting rod cap bolt
The angle tightening method has been adopted for the connecting rod cap bolt to further improve its reliability and
durability.
Common rail (fuel rail) type electronic control injection system
The common rail (fuel rail) type electronic control injection system consists of the fuel supply pump that sets the target
pressure of the high pressure fuel to supply the fuel, the common rail (fuel rail) that measures the high-pressure fuel,
and the fuel injector that injects the fuel in the form of a fine mist. Each of these is controlled by the ECM based on
various signals that control the injection timing and injection quantity in accordance with driving conditions.
Fuel injector
The fuel injector has adopted the 7- hole nozzle, and adjusts the fuel injection quantity and injection timing by opening
or closing the electromagnetic valve on the injector head portion.
The ECM corrects variations in the fuel injection quantity between fuel injectors in accordance with the ID code data
in the memory. When adjusting the fuel injector, the ID code data must be recorded in the ECM.
Fuel filter with sedimenter
The fuel filter with sedimenter removes water by using the difference in the specific gravity of diesel oil and water, and
notifies the operator through the indicator when it becomes full of water.
47843026 02/03/2015
10.1 [10.001] / 8