Symptom Tree t096
| Cause | Correction |
|---|
|
LTA coolant level is low |
Fill the LTA cooling system to the correct level. Refer to Procedure 008-018 in the Base Engine Troubleshooting and Repair Manual B3.9, B4.5, and B5.9 Series Engines, Bulletin 3666087, Procedure 008-018 in the Troubleshooting and Repair Manual C Series Engines, Bulletin 3666003. Refer to Procedure 1-07 in the Troubleshooting and Repair Manual NT 855 Engines Bulletin 3666142, Troubleshooting and Repair Manual K19 Engine, Bulletin 3810307, and in the Troubleshooting and Repair Manual, K38 and K50 Series Engines, Bulletin 3810432. Refer to Procedure 1-09 in the Troubleshooting and Repair Manual N14 Engine, Bulletin 3810456. |
 |
|
Fan drive belt is loose |
Check the belt tension and tighten if necessary. Refer to Procedure 008-002 in the Troubleshooting and Repair Manual B3.9, B4.5, and B5.9 Series Engines, Bulletin 3666087, Procedure 008-002 in the Troubleshooting and Repair Manual C Series Engines, Bulletin 3666003. Refer to Procedure 1-18 in the Troubleshooting and Repair Manual NT 855 Engines, Bulletin 3810298, Procedure 1-21 in the Troubleshooting and Repair Manual N14 Engine, Bulletin 3666142, Procedure 1-23 in the Troubleshooting and Repair Manual K19 Engine, Bulletin 3810307, and the Troubleshooting and Repair Manual, K38 and K50 Series Engines, Bulletin 3810432. |
|
|
Fan drive or fan controls are malfunctioning |
Check the fan drive and controls. Refer to Procedure 008-040 in the Troubleshooting and Repair Manual B3.9, B4.5, and B5.9 Series Engines, Bulletin 3666087, Procedure 008-040 in the Troubleshooting and Repair Manual C Series Engines, Bulletin 3666003. Refer to Procedure 1-18 in the Troubleshooting and Repair Manual NT 855 Engines, Bulletin 3810298, Procedure 1-22 in the Troubleshooting and Repair Manual N14 Engine, Bulletin 3666142, Procedure 1-26 or 1-27 in the Troubleshooting and Repair Manual K19 Engine, Bulletin 3810307, or Procedure 1-22 in the Troubleshooting and Repair Manual, K38 and K50 Series Engines, Bulletin 3810432. |
|
|
Fan shroud is damaged or missing or the air recirculation baffles are damaged or missing |
Inspect the shroud and the recirculation baffles. Repair, replace, or install, if necessary. Refer to Procedure 008-038 in the Troubleshooting and Repair Manual B3.9, B4.5, and B5.9 Series Engines, Bulletin 3666087, Procedure 008-038 in the Troubleshooting and Repair Manual C Series Engines, Bulletin 3666003. Refer to Procedure 1-18 in the Troubleshooting and Repair Manual NT 855 Engines, Bulletin 3810298, Procedure 1-19 in the Troubleshooting and Repair Manual N14 Engine, Bulletin 3666142, Procedure 1-21 in the Troubleshooting and Repair Manual K19 Engine, Bulletin 3810307, or Procedure 1-20 in the Troubleshooting and Repair Manual, K38 and K50 Series Engines, Bulletin 3810432. |
