What is the reason for the jerky feeling on the treadmill

The feeling of jerking on a treadmill is usually related to loose motor belts, offset running belts, or insufficient lubrication. In rare cases, it may be caused by circuit board faults. As a precision exercise equipment, the wear and tear of mechanical components or improper maintenance of treadmills may cause abnormal operation.

The treadmill motor belt will naturally stretch if used for too long, resulting in a decrease in transmission efficiency and jerking. Regularly check the tension of the belt, and adjust it when the middle of the belt sinks more than 3 centimeters when pressed by fingers. Home treadmills are recommended to be checked every three months, while commercial models should be checked monthly due to their high frequency of use. If cracks or tooth wear are found on the edge of the belt, the same specification accessories should be replaced immediately. Lack of lubrication between the running belt and running board can lead to uneven friction and intermittent lagging during exercise. Use specialized silicone oil lubricant and replenish it every 100 hours or three months of operation. When adding, lift the running belt and evenly apply it to the central area of the running board on both sides. Excessive lubrication may attract dust and form dirt. If there is a significant deviation in the running belt, it can be corrected by adjusting the bolt at the rear to keep the running belt running in the center.

Daily maintenance can prevent most jolting problems, including regularly cleaning debris under the running belt, avoiding using hard soled shoes, and keeping equipment level. If the problem persists after self adjustment, it is recommended to contact professional maintenance personnel to check the wear of the drive motor carbon brush or the stability of the control board voltage output. Before exercising, equipment inspection should be carried out to ensure that the safety protection key is correctly connected. If any abnormalities occur, the machine should be stopped immediately for maintenance.