Series 60 DDEC VI 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 radiator shrouding for damage or incorrect positioning. If there is no damage or clogging to the radiator refer to "13.3 Faulty Pressure Control Cap" .
   2. 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" .