C8.3 Commercial Marine and Ind [...] Operating the Engine Section 1 - Operating Instructions Page 1-21 If an overheating condition starts to occur, reduce the power output of the engine by releasing the accelerator pedal or lever or shifting the transmission to a lower gear, or both, until the temperature returns to the normal operating range. If the engine temperature does not return to normal, shut off the engine, and refer to Troubleshooting Symptoms (Section TS), or contact a Cummins® Authorized Repair Location. Winterfronts and Shutters Winterfronts and shutters can be used on a vehicle or equipment to reduce air flow through the radiator core into the engine compartment.
This can reduce the time required to warm the engine and help maintain the engine coolant temperature. The engine coolant temperature specifications are in the Maintenance Specification (Section V).