| Popis: |
The diploma thesis deals with the diagnostics of the Autopowr transmission at the John Deere 6190R tractor. The aim of the work was to perform diagnostics and evaluate predictions of the development of the fault condition of a specific gearbox. An incorrect travel function has been detected on the tractor. The diagnostics were performed at an authorized John Deere machine service using original diagnostic software, an original pressure gauge set, and a flow meter. After performing a complete diagnosis and evaluation of all measured results, it was found that the gearbox was showing correct operation. The real reason for the machine's malfunction was a defective pressure sensor located on the engine exhaust manifold. The pressure sensor incorrectly signaled low exhaust pressure, thus spontaneously limiting engine power. |
