The device utilizes a Variable Speed Controller to manage motor output.

Many models feature an adjustable crank wheel. By changing the position of the connecting rod on the internal wheel, the distance the shaft travels can be shortened or lengthened. Always perform these adjustments while the machine is powered off. 5. Mechanical Maintenance

Always ensure the control dial is set to "Off" or the lowest setting before connecting the power adapter to a wall outlet.

Do not exceed the motor's weight capacity by applying excessive external pressure, which can lead to overheating or belt slippage.