Series 60 DDEC V Troubleshooting – Section 13.2 Insufficient Radiator Air Circulation

Section 13.2
Insufficient Radiator Air Circulation

To determine if insufficient radiator air circulation is causing high engine coolant temperature, perform the following:‪

1. Visually examine the radiator and radiator shrouding.
2. Check for excessive clogging, a damaged shrouding or a faulty pressure control cap.

Section 13.2.1
Exterior Radiator Repair

Perform the following for exterior radiator repair:‪

1. Clean the exterior radiator of all clogging, debris, or excessive dirt; refer to OEM guidelines.
2. Verify exterior radiator repair; refer to "13.2.2.1 Test Engine with Repaired Exterior Radiator and Shrouding" .
   1. If the radiator is absent of clogging, debris, and dirt, check the pressure control cap; refer to "13.3 Faulty Pressure Control Cap" .
   2. If the radiator has excessive clogging, debris, or dirt; refer to "13.2.1 Exterior Radiator Repair" .
   3. If the radiator shrouding is not damaged, incorrectly positioned, or inadequate, check the pressure control cap; refer to "13.3 Faulty Pressure Control Cap" .
   4. If the radiator shrouding is damaged, incorrectly positioned, or inadequate, refer to "13.2.2 Radiator Shroud Repair" .

Section 13.2.2
Radiator Shroud Repair

Perform the following for radiator shroud repair:‪

1. Repair or replace damaged radiator shrouding; refer to OEM guidelines
2. Verify exterior radiator repair; refer to "13.2.2.1 Test Engine with Repaired Exterior Radiator and Shrouding" .

Section 13.2.2.1
Test Engine with Repaired Exterior Radiator and Shrouding

Perform the following to determine if exterior radiator and shrouding repair resolved high engine coolant temperature:‪

1. Start and run the engine.
2. 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 88-96°C (190-210°F), no further troubleshooting is required. Shut down the engine.
   2. If the engine coolant temperature is not 88-96°C (190-210°F), shut down the engine. Check the pressure control cap; refer to "13.3 Faulty Pressure Control Cap" .