SHAFT 9W0474 - Caterpillar

The connection of any electrical equipment and the disconnection of any electrical equipment may cause an explosion hazard which may result in injury or death. Do not connect any electrical equipment or disconnect any electrical equipment in an explosive atmosphere.
Probable Causes
Engine oil level
Engine oil temperature reading
Coolant temperature
Engine oil cooler bypass valve
Engine oil cooler coreRecommended Actions
Engine Oil Level
Inspect the engine oil level. If necessary, add engine oil.Engine Oil Temperature Reading
Compare the engine oil temperature reading from the Caterpillar Electronic Technician (ET) to the temperature from a 6V-9130 Temperature Adapter (Multimeter). Verify that the readings are reasonably close.Coolant temperature
If a high coolant temperature condition is also occurring, refer to Troubleshooting, "Coolant Temperature is Too High".Engine Oil Cooler Bypass Valve
Clean the engine oil cooler bypass valve and inspect the engine oil cooler bypass valve. Clean the bore for the valve. Ensure that the bypass valve is not stuck in the open position. Replace the bypass valve, if necessary. Refer to Disassembly and Assembly, "Engine Oil Cooler Bypass Valve - Remove and Install" for the correct procedure.Engine Oil Cooler Core
Clean the engine oil cooler core or replace the engine oil cooler core.