| Traction generator | JF204D | Rotor coil burnout and grounding | DF8B |
| Traction generator | JF208A | Rotor coil burnout and grounding | DF7G |
| Traction motor | ZD109C | Rotor coil burnout and grounding | DF8B |
| Start the generator | ZQF-80/ZQF412 | Rotor coil burnout and grounding | DF4B/8B |
| Exciter | GQL-45/JGL405B | Rotor coil burnout and grounding | DF4B/8B |
| Diesel engine block | DF型 | Deformation of main shaft hole and cam shaft hole, excessive coaxiality, cracks and cavitation on the top plate, partition plate, side plate | DF系列 |
| Supercharger | ZN261P-13D | Scroll casing erosion, damaged parts such as turbine disk and turbine, oil seal oil leakage, overdue | DF7C |
| Supercharger | ZN250系列 | Scroll casing erosion, damaged parts such as turbine disk and turbine, oil seal oil leakage, overdue | DF7G |
| Supercharger | ZN310G | Scroll casing erosion, damaged parts such as turbine disk and turbine, oil seal oil leakage, overdue | DF4B |
| Supercharger | ZN310-LSA4 | Scroll casing erosion, damaged parts such as turbine disk and turbine, oil seal oil leakage, overdue | DF8B/DF11 |
| Supercharger | ZN310-LSA4-1 | Scroll casing erosion, damaged parts such as turbine disk and turbine, oil seal oil leakage, overdue | DF8B/DF11 |
| Wheel | DF7G型(带抱轴箱) | Wheel core crack or service life over limit / axle box crack | DF7G |
| Gearbox | DF型 | Body hole deformation and strain | DF系列 |
| Gearbox | DF型 | Burning of shaft group (replace bearing) | DF系列 |
| Gearbox | DF型 | Burning of shaft group (replace bearing), pump cracking | DF系列 |
| Hydraulic shock absorber (import) | 垂向减震器 | Oil leakage, joint wear, damping coefficient exceeds the standard | DF8B |
| Hydraulic shock absorber (import) | 横向减震器 | Oil leakage, joint wear, damping coefficient exceeds the standard | DF8B |
| Pantograph | DSA200/DSA200D | Deformed bow frame, damaged airbag, oil leakage from damper | HXD3C/3D |
| Driver controller | S640U-BCC.005/S640U-BCC.007 | Handle stuck, potentiometer, interlock burnout, damage to linkage mechanism | HXD3C/3D |
| Traction ventilation unit | BAF-80A/THTF8.0 | Burnout of motor, abnormal sound of fan, damage of bearings and blades | HXD3C/3D |
| Hydraulic shock absorber (import) | 一系垂向 | Oil leakage, joint wear, damping coefficient exceeds the standard | HXD3C/3D |
| Hydraulic shock absorber (import) | 二系垂向油 | Oil leakage, joint wear, damping coefficient exceeds the standard | HXD3C/3D |
| Hydraulic shock absorber (import) | 二系横向 | Oil leakage, joint wear, damping coefficient exceeds the standard | HXD3C/3D |
| Hydraulic shock absorber (import) | 二系抗蛇行 | Oil leakage, joint wear, damping coefficient exceeds the standard | HXD3D |
| HXD locomotive air conditioner | TTK14C-4.5GD/TTK21-5.4DL | Compressor, motor damage | HXD3C/3D |
| Double cooling ventilation unit | RPF-67B/TZTF6.7A | Burnout of motor, abnormal sound of fan, damage of bearings and blades | HXD3C/3D |




