RETAINER 4K7348 - Caterpillar

Use this procedure to troubleshoot the electrical system if a problem is suspected with the engine starting system.The ECM can crank the engine when the Engine Control Switch (ECS) is placed in the START position. After the ECS is placed in the START position, the ECM will begin the prelube cycle. When the prelubrication pressure switch opens, the ECM will start the first crank cycle. The crank cycle will continue for the time that is equal to the cycle crank time that has been programmed. Or the crank cycle will continue until the engine speed reaches the crank terminate speed. If crank terminate speed is not reached before the crank cycle time, the starting motor will deactivate at the end of the crank cycle time.This process will repeat for a programmed amount of times (Total Number of Crank Cycles). If the engine does not start, Caterpillar