General Information
Often when problems with the charging system are being investigated, the alternator is not the problem. If a low battery condition is present, test the batteries first. See Special Instruction, SEHS7633, "Battery Test Procedure" for more information. If the engine cranks slowly, then test the starting system. See Service Magazine, SEPD0020, "Testing The Starter On The Engine" for more information. If a warning indicator for the charging system is ON, see Service Magazine, SEBD1751, "Difference Between Alternator Indicator In Electronic Monitoring System (EMS) And Low Voltage Indicator In Operating Monitoring System (OMS)". When a problem with the charging system is suspected, then complete the testing that is described in Diagnostic System Procedures, "Charging System".
Caterpillar Information System:
2004/05/01 Provide Proper Documentation of Returned Parts within the Warranty Claim {1000}
2004/03/22 Provide Proper Documentation of Returned Parts within the Warranty Claim {1000}
C15 and C18 Industrial Engines Vibration Damper and Pulley - Remove and Install
3412E Petroleum Engine Engine Speed/Timing Sensor Circuit - Test
3412E Petroleum Engine Engine Sensor Open/Short Circuit - Test
3412E Petroleum Engine Electrical Power Supply Circuit - Test
3412E Petroleum Engine Digital Sensor Supply Circuit - Test
3412E Petroleum Engine Coolant Level Sensor Circuit - Test
3412E Petroleum Engine Cat Data Link Circuit - Test
3412E Petroleum Engine CAN Data Link Circuit - Test
3412E Petroleum Engine ATA (SAE J1587 / J1708) Data Link Circuit - Test
2004/07/01 A New Screen is Used in the 1L-2073 Pressure Reducing Valve {1462}
2004/05/01 Proper Documentation of Returned Parts within the Warranty Claim {1000}
3412E Petroleum Engine Injection Actuation Pressure Control Valve Circuit - Test
3412E Petroleum Engine Injector Solenoid Circuit - Test
3412E Petroleum Engine Throttle Position Sensor Circuit - Test
3406E, C-10 and C-12 On-highway Engines Check Engine Lamp or Warning Lamp Is Malfunctioning
3412E Petroleum Engine Engine Speed/Timing Sensor - Calibrate
C13, C15, and C18 Tier 4 Final Engines Flywheel
2004/03/01 The Piston Pin Retainer is Now Marked for Correct Orientation {1214}
C-15 Petroleum Engine Engine Oil Filter Base
2004/04/01 223-9296 Alternators are Being Replaced. {1405}
SCJ and 8SC Series Alternators Alternator - Disassemble
C15 Petroleum Engines Air Compressor - Remove and Install