DD15 Insufficient Radiator Air Circulation Troubleshooting

Check as follows:‪

1. Visually examine the radiator and radiator shrouding.
2. Check for excessive clogging, a damaged shrouding or a faulty pressure control cap.
3. Clean the exterior radiator of all clogging, debris, or excessive dirt; refer to OEM guidelines. Remove winter front.
   1. If the radiator is absent of clogging, debris, and dirt, check the radiator shrouding for damage or incorrect positioning. If there is no damage or clogging to the radiator refer to “11.3 Faulty Pressure Control Cap” .
   2. If the radiator shrouding is damaged, incorrectly positioned, or inadequate, Repair or replace damaged radiator shrouding; refer to OEM guidelines.
      

      ENGINE EXHAUST ‪
      To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.‪

4. Start and run the engine.
5. Run the engine through its operating range with no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range.
   1. If the engine coolant temperature is 85-95°C (185-203°F), no further troubleshooting is required. Shut down the engine.
   2. If the engine coolant temperature is above 85-95°C (185-203°F), shut down the engine. Check the pressure control cap; refer to “11.3 Faulty Pressure Control Cap” .