Common Mistakes That Damage Lift Arms and Adapters

As a professional mechanic or shop owner, your car lifts are the backbone of your daily operations. Whether you are using a heavy-duty commercial car lift or a specialized garage lift, the integrity of your equipment directly impacts safety and productivity. However, even the most experienced technicians can fall into habits that cause premature wear or catastrophic failure. At Eagle Equipment, we see many avoidable issues that compromise the longevity of lift arms and adapters. Here are three common mistakes that could be damaging your car shop lift. Shop today.

man looking at car lift

Improper Loading and Uneven Weight Distribution

The most frequent cause of bent lift arms is failing to center the vehicle’s center of gravity. When a vehicle is improperly positioned, one arm carries a disproportionate amount of the load. This creates “stress creep,” where the steel begins to fatigue or warp over time. Always verify the manufacturer’s lifting points before engaging the car lift for sale that you recently installed; guessing can lead to permanent structural damage.

man looking at car lift part

Neglecting Adapter Maintenance and “MacGyvering”

Adapters are designed to provide a secure, level interface between the lift and the vehicle frame. A common mistake is using worn-out pads or, worse, using wood blocks or makeshift spacers to gain extra height. This creates uneven pressure on the adapter pins and the arm holes. Using the wrong or damaged adapters can lead to “point loading,” which shears bolts and deforms the arm’s receiver socket.

man looking at car lift and doing maintenance

Failure to Lubricate Sliding Components

Lift arms are telescopic, and the friction between the inner and outer arm segments is intense. Many shops forget to clean and lubricate these sliding surfaces. Without proper grease, metal-on-metal friction causes “galling,” where the surfaces weld together momentarily and tear. This makes the arms difficult to move and eventually thins the metal walls, compromising the lift’s rated capacity.

Get Started Today

Your car lifts are a significant investment in your business’s future. By avoiding these common pitfalls—unbalanced loading, improper adapter use, and lack of lubrication—you ensure your equipment remains a reliable asset rather than a liability. Take the time to inspect your arms and adapters today; a few minutes of maintenance can prevent thousands of dollars in repairs and keep your shop running safely. Shop today.


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