PLATE-RETAINING 9T1642 - Caterpillar

E197Conditions Which Generate This Code:The temperature of the engine oil has exceeded the trip point. Information on default settings and ranges for this event code can be found in Troubleshooting, "Event Codes".System Response:The ECM triggers a snapshot. The event code is logged.Possible Performance Effect:E197(1)
Engine performance is not affected.E197(2)
An engine derate will be initiated.E197(3)
The engine will shut down.Troubleshooting:A high engine oil temperature may be caused by the following problems:
Improper engine oil level
Faulty engine oil cooler bypass valve
Damaged engine oil cooler core
Problems with other engine systemsTest Step 1. Check the Level of the Engine OilUse the engine oil dipstick to check for the correct oil level. If necessary, add engine oil to the crankcase.Results:Continue to the next test step.Test Step 2. Inspect the Engine Oil Cooler Bypass ValveInspect the components of the engine oil cooler bypass valve for damage. Clean the engine oil cooler bypass valve and clean the bore for the valve. Ensure that the bypass valve is not stuck in the open position. Replace the components of the bypass valve, if necessary.Results:Continue to the next test step.Test Step 3. Inspect the Engine Oil Cooler CoreCheck the engine oil cooler core for damage and for plugging. Clean the engine oil cooler core or replace the engine oil cooler core, if necessary.Results:Continue to the next test step.Test Step 4. Check for a Problem with Other Engine Systems
Check the cooling system for problems.
Verify that the cooling system is filled with coolant to the proper level. If the coolant level is too low, air may be allowed to enter the cooling system. Air in the cooling system will cause cavitation and a reduction in coolant flow.
Check the quality of the coolant. Refer to the Operation and Maintenance Manual for coolant recommendations.
Check for air in the cooling system. Air can be introduced into the cooling system in different ways. The most common cause of air in the cooling system is the improper filling of the cooling system. Refer to the Operation and Maintenance Manual for the proper filling procedure for your engine.The next likely cause is combustion gas leakage into the cooling system. Combustion gas can be introduced into the cooling system through damaged liner seals, cracks in the liners, a damaged cylinder head, or a damaged cylinder head gasket.
Check the cooling system hoses and clamps for damage. Clamps that are damaged and hoses that are leaking can usually be discovered during a visual inspection.Hoses that have no visual leaks can soften during operation. The soft areas of the hose can kink or the soft areas of the hose may collapse during operation. This can restrict the coolant flow. This can cause the engine to overheat. Check the hoses for soft spots.Internal cracks can also develop in cooling system hoses. This type of deterioration usually produces particles that can build up in the cooling system. This may cause a restriction in the coolant flow through components. Check the hoses for spots that are hard or brittle.
Check the water pump. Remove the water pump