What is the stick-slip effect? 

Sudden jerks, vibrations or howling noises when turning are common problems for excavator operators, crane operators, forklift drivers and platform operators. These symptoms are often due to the so-called stick-slip effect – a jerky movement that occurs in rotating joints when friction varies. The stick-slip effect occurs when two surfaces slide against each other under varying friction. The movement occurs jerkily with alternating locking (“stick”) […]