Sensors and Electrical Components
The illustration within the section shows the typical locations of the sensors and other electrical components on the Industrial engine. Specific engines may appear different due to the application. Also illustration of the aftertreatment system may appear different due to the application.
Show/hide table
| |
| Illustration 1 | g03419999 |
|
Typical example (1) Coolant Temperature Sensor (2) Fuel Pressure Sensor (Fuel Rail Pressure Sensor) (3) Intake Manifold Air Temperature Sensor (4) Intake Manifold Pressure Sensor (5) Electronic Control Module (ECM) (6) Atmospheric Pressure Sensor (Barometric Pressure Sensor) (7) Priming/ Transfer pump (8) Primary Speed/Timing sensor (Crankshaft Position Sensor) (9) Oil Pressure Sensor (10) Fuel Temperature Sensor (11) Fuel Metering Solenoid for the High Pressure Fuel Pump | |
Show/hide table
| |
| Illustration 2 | g03420017 |
|
Typical example (12) Wastegate Regulator (13) Inlet Pressure Sensor for the NOx Reduction System (NRS) (14) Control Valve for the NRS (15) Temperature Sensor for the NRS (16) Differential Pressure Sensor for the NRS | |
Show/hide table
| |
| Illustration 3 | g03420076 |
|
Typical example (17) Alternator (18) Starter Solenoid (19) Starting Motor (20) Starter Relay (21) Low Oil Level Switch (if Equipped) (22) Inlet Air Temperature Sensor (23) Water in Fuel Switch (24) Secondary Speed/Timing Sensor (Camshaft Position Sensor) (25) Back Pressure Valve | |
Show/hide table
| |
| Illustration 4 | g02413838 |
|
Typical example (1) Coolant Temperature Sensor (2) Fuel Pressure Sensor (Fuel Rail Pressure Sensor) (3) Intake Manifold Air Temperature Sensor (4) Intake Manifold Pressure Sensor (5) Electronic Control Module (ECM) | |
Show/hide table
| |
| Illustration 5 | g03420558 |
|
Typical example (6) Atmospheric Pressure Sensor (Barometric Pressure Sensor) (7) Priming/ Transfer pump (8) Primary Speed/Timing sensor (Crankshaft Position Sensor) (9) Oil Pressure Sensor (10) Fuel Temperature Sensor (11) Fuel Metering Solenoid for the High Pressure Fuel Pump | |
Show/hide table
| |
| Illustration 6 | g03421140 |
|
Typical example (12) Wastegate Regulator (13) Inlet Pressure Sensor for the NOx Reduction System (NRS) (14) Control Valve for the NRS (15) Temperature Sensor for the NRS (16) Differential Pressure Sensor for the NRS | |
Show/hide table
| |
| Illustration 7 | g03421147 |
|
Typical example (17) Alternator (18) Starter Solenoid (19) Starting Motor (20) Starter Relay (21) Low Oil Level Switch (if Equipped) | |
Show/hide table
| |
| Illustration 8 | g03421154 |
|
Typical example (22) Inlet Air Temperature Sensor (23) Water in Fuel Switch (24) Secondary Speed/Timing Sensor (Camshaft Position Sensor) (25) Back Pressure Valve | |
- DOC ____________________Diesel Oxidation Catalyst
- SCR ____________________Selective Catalytic Reduction
- DEF ____________________Diesel Exhaust Fluid
Aftertreatment will have an identification module installed.
Show/hide table
| |
| Illustration 9 | g03421173 |
|
Typical example (1) SCR Temperature Sensor (2) Identification Module (3) DEF Injector (4) DOC Temperature Sensor | |
Sensors and Aftertreatment Components
Show/hide table
| |
| Illustration 10 | g03659936 |
|
Typical example (1) DEF Pump and electronic unit (2) Coolant Diverter Valve (3) DEF Tank level and Temperature Sensor (4) NOx Sensors (5) Ammonia Sensor and Control (6) Heated DEF Line | |
Caterpillar Information System:
C32 Marine Engines Crankshaft Main Bearings - Install
C32 Marine Engines Engine Oil Pan - Remove and Install
New Firmware is Available for 7 inch and 13 inch Displays for Certain Marine Engines {7490, 7620} New Firmware is Available for 7 inch and 13 inch Displays for Certain Marine Engines {7490, 7620}
C9.3 Marine Auxiliary Engines Fluid Recommendations
New Software Is Now Used on Certain C18 Locomotive Engines {1920} New Software Is Now Used on Certain C18 Locomotive Engines {1920}
PM820, PM822, and PM825 Cold Planer Machine Systems Piston Motor (Propel) - Remove and Install
336, 336 GC and 340 Excavator Systems Boom Cylinder
C175-16 Locomotive Engine Exhaust Manifold
320, 323 Excavator Engine Supplement Electric Starting Motor - Remove and Install
C32 Marine Engines Crankshaft Main Bearings - Remove
C4.4 Marine Generator Set Fluid Recommendations
320 GC, 320 and 323 Excavator Machine Systems Travel on Level Ground - Test
XQ125 Generator Set Stopping the Engine
336, 336 GC and 340 Excavator Systems Sensor (Data Link Type) - Test
320 GC, 320, 323, 330 GC and 330 Excavator Machine Systems Troubleshooting ECM Location Code - Test
320 GC, 320, 323, 330 GC and 330 Excavator Machine Systems Troubleshooting Ethernet Data Link - Test
320 GC, 320, 323, 330 GC and 330 Excavator Machine Systems Troubleshooting Sensor Supply - Test - Display
XQ125 Generator Set Cooling System Coolant (DEAC) - Change
XQ125 Generator Set Belt Tensioner - Inspect
XQ125 Generator Set Cooling System Coolant Level - Check
336, 336 GC and 340 Excavator Systems Bucket Cylinder
320GC and 320 Excavator Engine Supplement Manifold (DEF Heater) - Remove and Install
C32 Marine Engines Speed/Timing Sensor - Remove and Install
C32 Marine Engines Inlet Manifold Pressure Sensor - Remove and Install