C27 and C32 Engines for Caterpillar Built Machines Caterpillar


Component Location

Usage:

990K A9P

Block Diagram



Illustration 1g02278193

Block diagram for the C32 Engines

Locations of the Engine Electronic Components



Illustration 2g02279617
Left side engine view
(1) Electronic Control Module (ECM)
(2) NRS temperature sensor
(3) Differential pressure sensor for the NRS system
(4) Absolute pressure sensor for the NRS system
(5) Engine oil pressure sensor
(6) Crankshaft speed/timing sensor
(7) Buffer for the exhaust temperature sensors
(8) Low oil level switch (engine off)
(9) Turbocharger inlet temperature sensor for cylinders 1, 3, and 5
(10) Turbocharger inlet temperature sensor for cylinders 7, 9, and 11


Illustration 3g02280594
Right side engine view
(11) Solenoid for NRS actuator
(12) Camshaft speed/timing sensor
(13) Turbocharger inlet temperature sensor for cylinders 8, 10, and 12
(14) Turbocharger inlet temperature sensor for cylinders 2, 4, and 6
(15) Buffer for the exhaust temperature sensors
(16) Coolant flow switch


Illustration 4g02280596
Top engine view
(17) Valve cover connector for fuel injectors (left bank)
(18) Valve cover connector for fuel injectors (right bank)
(19) Balance valve solenoid
(20) Right intake manifold temperature sensor
(21) Left intake manifold temperature sensor
(22) Crankcase pressure sensor
(23) Intake manifold pressure sensor
(24) J2/P2 ECM connectors
(25) J1 ECM connector
(26) Barometric pressure sensor
(27) Coolant temperature sensor
(28) Fuel temperature sensor
(29) Fuel filter differential pressure switch
(30) Fuel pressure sensor


Illustration 5g02280597
Location of the turbocharger inlet sensors (left side view of the machine)
(31) Turbocharger inlet pressure sensor
(32) Air inlet temperature


Illustration 6g02280599
Location of the fuel priming pump (right side view of the machine)
(33) Fuel priming pump


Illustration 7g02281474
Fuse block (machine cab view)


Illustration 8g02280598
Location of the ether solenoid (right side view of the machine)
(34) Ether solenoid


Illustration 9g02280600
Location of the fan reversing solenoid and the fan bypass solenoid (front machine view)
(35) Hydraulic fan motor
(36) Fan reversing solenoid
(37) Fan bypass solenoid


Illustration 10g02280613
Location of the hydraulic demand fan pump (left rear engine view)
(38) Hydraulic demand fan pump
(39) Demand fan solenoid


Illustration 11g02280993
Location of the prelube pump (left side machine view)
(40) Prelube pump

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