Forward & Reverse Movement Problems
Sometimes, your mower may start normally but fail to engage in forward/reverse motions. For such cases, the first thing most technicians do is check whether the drive belt is intact. However, if the unit shows detachment or is broken then it needs a repair for the machine to run.
Additionally, this issue could also be due to debris stuck on the lower or upper pulley, causing a ringing noise when the mower is about to start. Here, the obstructions would have to have delicate removal by the technician, while taking care not to damage any other machine parts surrounding the pulley.