LAMP 1239294 - Caterpillar

Introduction
This section provides the following information:
Known problems
Probable causes of known problems
Repairs in order to correct known problemsAdditional repair work maybe needed beyond the recommendation in the list.A problem is not normally caused by only one part. The cause can be related to problems with other parts. This list does not include all possible problems and corrections. The service technician must find the problem and the source. After the source is determined, the service technician can make the necessary repairs.Troubleshooting Problems
The Engine Crankshaft Will Not Turn.
Probable Cause
Problem with the starting motorRefer to information on the starting motor in this section.
Fluid in the cylindersInspect the cylinders for fluid while the crankshaft is being turned.The Engine Will Not Start and the Terminal Shaft of the Governor Does Not Move.
Probable Cause
Binding of the Control linkage The engine can start when the engine is cold. When the oil is hot, the governor does not develop the oil pressure that is needed to move the linkage. Check the linkage effort and correct the problem.
Low oil pressure in the governorThe governor oil pump relief valve may be stuck in the open position or the valve may be leaking. Correct the condition by disassembly and cleaning of the governor. Refer to Caterpillar 3161 Governor, SENR3028. Check for plugged oil supply passages from the engine. The Engine Will Not Start but the Terminal Shaft of the Governor Moves.
Probable Cause
Slow cranking speedRefer to information on the starting motor in this section.
Low quality fuel or water in fuelRemove the fuel from the fuel tank. Install new fuel filters. Put a good grade of clean fuel in the fuel tank.
No fuel to fuel injectorsCheck the fuel level in the fuel tank and fill the fuel tank, if necessary. Use the priming pump in order to remove any air from the fuel system.Install new fuel filters, if necessary. Fuel lines that are blocked should be cleaned and fuel lines that are broken should be replaced. Check the fuel transfer pump for damage and/or wear.The governor linkage is not connected to the internal rack linkage. This condition can exist after a governor has been assembled incorrectly during an overhaul. Ensure that the governor linkage is correctly engaged.
Low fuel pressureAt starting rpm, the minimum fuel pressure from the fuel transfer pump must be 415 kPa (60 psi). If the fuel pressure is less than 415 kPa (60 psi), change the fuel filters. After changing the fuel filters, inspect the fuel system for air in the fuel system. If the fuel pressure is still low, check the fuel bypass valve and the fuel transfer pump for correct operation.
Wrong fuel injection timingAdjust the timing. Refer to Testing and Adjusting, "Fuel Injector Timing".
The air inlet shutoff valve is tripped.Reset the air inlet shutoff valve.The Engine Overspeeds on Start-up.
Probable Cause
Fuel control linkageInspect the fuel control linkage for one or more of the following conditions:
Incorrect assembly after overhaul
Bound fuel control linkage
Bound fuel control linkage in FUEL-ON position
Governor output lever to control housing lever out of adjustmentMake adjustment or