BEARING 7H7628 - Caterpillar

The engine has an electronic control system. The system controls the engine and the Aftertreatment Regeneration Device (ARD). The system monitors the Diesel Particulate Filter (DPF).The control system consists of the following components:
Engine Control Module (ECM)
Software (flash file)
Wiring
Sensors
ActuatorsThe following information provides a general description of the control system. Refer to the Systems Operation manual for detailed information about the control system.Electronic Control Circuit Diagram
Illustration 1 g01442386
Electronic control circuit diagram
Block Diagrams
Illustration 2 is a block diagram of the control system for C13 engines. Illustration 3 is a block diagram of the control system for C15 engines.
Illustration 2 g01384887
Block diagram for C13 engines
(1) Air cleaner
(2) Inlet air temperature sensor
(3) Control group for the Clean Gas Induction System (CGI)
(4) CGI Cooler
(5) Differential pressure sensor for the CGI system
(6) Absolute pressure sensor for the CGI system
(7) Temperature sensor for the CGI system
(8) Turbocharger outlet temperature sensor
(9) Flame detection temperature sensor
(10) Flame boundary temperature sensor
(11) Ignition coil
(12) Spark plug
(13) ARD head
(14) ARD body
(15) DPF
(16) Inlet temperature sensor for the DPF
(17) Differential pressure sensor for the DPF
(18) Outlet temperature sensor for the DPF
(19) Low pressure turbocharger
(20) High pressure turbocharger
(21) Optional precooler
(22) Control group for the combustion air system
(23) Differential pressure sensor for the combustion air supply
(24) Filter for the purge air
(25) ARD purge air pump
(26) Pilot fuel pressure sensor
(27) Main fuel pressure sensor
(28) Pilot fuel control solenoid
(29) Main fuel control solenoid
(30) Fuel enable valve
(31) Fuel pressure sensor (if equipped)
(32) 517 kPa (75 psi) pressure regulator
(33) Fuel transfer pump
(34) Primary fuel filter
(35) Fuel temperature sensor
(36) Secondary fuel filter
(37) Fuel tank
(38) Intake valve actuation control valve
(39) Intake valve actuation pressure sensor
(40) Air-to-air aftercooler
(41) Coolant temperature sensor
(42) Secondary speed-timing sensor (camshaft)
(43) Primary speed-timing sensor (crankshaft)
(44) Fuel injectors
(45) Intake valve actuators
(46) Compression brakes
(47) Crankcase pressure sensor
(48) Intake manifold