Why Does a Tire Changer Damage Wheel Rims?
2 Answers
Tire changers can damage wheel rims due to incorrect disassembly direction. Introduction to Tire Changers: A tire changer, also known as a tire mounting machine, facilitates easier and smoother tire removal during automotive repairs. There are various types of tire changers, including pneumatic and hydraulic models, with pneumatic changers being the most commonly used. Structure of a Tire Changer: The structure of a tire changer consists of a main workbench, separation arm, inflation/deflation device, foot pedal, lubricating fluid, and compressed air interface. The inflation/deflation device primarily functions to release tire air for easier inflation or disassembly, and it includes a pressure gauge for measuring air pressure. The main workbench is where the tire is primarily disassembled, serving to position the tire and enable rotation.
From an operational perspective, tire changers damage wheel rims primarily due to improper handling. Many beginners forcefully press down without properly aligning the machine's clamping heads to the rim position, which easily causes scratches or dents. I've seen numerous cases where this leads to rim deformation, compromising driving safety. For example, aluminum alloy rims are relatively soft, and uneven force application can leave permanent marks. Additionally, insufficient lubrication or uncleaned dust on the machine increases friction, directly damaging the surface layer. It's recommended to check rim cleanliness before each repair, operate gently, and avoid excessive force for speed. Experienced technicians should slow down when necessary—practice makes perfect to prevent such accidents. Rim damage not only affects aesthetics but may also reduce tire sealing over time, increasing air leakage risks. Choosing a reputable repair shop is crucial, as they understand how to adjust clamping head pressure to effectively prevent issues.