RENR5042-02 83 Troubleshooting Section I. If the cooling system for this application is equipped with an expansion tank, check the shunt line for the expansion tank. The shunt line must be submerged in the expansion tank. A restriction of the shunt line from the expansion tank to the inlet of the jacket water pump will cause a reduction in water pump efficiency. A reduction in water pump efficiency will result in low coolant flow. i02291001 E362 Engine Overspeed SMCS Code: 7410-038; 7427-038 Conditions Which Generate This Code: The Electronic Control Module (ECM) detects an overspeed condition.
Information on default settings and ranges for this event can be found in Troubleshooting, “Event Codes”. J. If the cooling system for this application is equipped with an aftercooler, check the aftercooler. A restriction of air flow through the air to air aftercooler can cause overheating. Check for debris or deposits which would prevent the free flow of air through the aftercooler. System Response: The event code will be logged. K. Check for a restriction in the air inlet system. A restriction of the air that is coming into the engine can cause high cylinder temperatures. High cylinder temperatures cause higher than normal temperatures in the cooling system. Possible Performance Effect:
E362-1 (Warning) None L. Check for a restriction in the exhaust system. A restriction of the air that is coming out of the engine can cause high cylinder temperatures. E362-2 (Derate) M. Consider high ambient temperatures. When ambient temperatures are too high for the rating of the cooling system, there is not enough of a temperature difference between the ambient air and coolant temperatures. None E362-3 (Shutdown) The engine will be shut down. Troubleshooting: N. Consider high altitude operation. The cooling capability of the cooling system is reduced at higher altitudes. A pressurized cooling system that is large enough to keep the coolant from boiling must be used.
The operator may be operating the machine incorrectly. Talk to the Operator O. The engine may be running in the lug condition. When the load that is applied to the engine is too large, the engine will run in the lug condition. When the engine is running in the lug condition, engine rpm does not increase with an increase of fuel. This lower engine rpm causes a reduction in coolant flow through the system. Determine the events that caused the overspeed of the engine. Results: OK STOP. Expected Result: i02291100 E363 High Fuel Temperature A thorough inspection of the cooling system revealed a problem. SMCS Code: 1250-038-TA Results: Conditions Which Generate This Code:
OK – There is a problem with the cooling system. The temperature of the fuel has exceeded the trip point. Information on default settings and ranges for this event code can be found in Troubleshooting, “Event Codes”. Repair: Repair the problem. Ensure that the repair eliminates the problem. STOP. System Response: The event code is logged.