About 4 Post Alignment Rack: Something You Need To Know

Jun 20,2023
Share :

What is 4 post car alignment lift?

The 4 post car alignment lift is a lifting device for vehicle positioning and adjustment. It usually consists of four vertical pillars, each connected to a fixed base, and has the function of raising and lowering the vehicle.

The main purpose of this type of lift is to provide a stable platform for wheel alignment and adjustment work. With a 4 post car alignment lift, the operator drives the vehicle onto the lift platform and then uses the lift controls to raise the vehicle to the proper height. Once the vehicle has been lifted to the desired height, the safety locking device on the support column is activated to ensure the vehicle is secured securely. The operator can then position and adjust the wheels by adjusting the slides and circlips on the platform.

How 4 post car alignment lift work?

Understanding the working principle of the 4 post car alignment lift is helpful for our operation, it is based on the hydraulic system and mechanical structure. Here's how it works in general:

Structural composition: The 4 post car alignment lift is composed of four vertical pillars, a lift base, a platform, a hydraulic cylinder, a hydraulic pump, and a control system.

Lifting process: When the vehicle needs to be lifted, the hydraulic pump will supply hydraulic oil to the hydraulic cylinder. Hydraulic oil enters the hydraulic cylinder and pushes the piston upward. The piston is attached to the top of the strut, so the strut moves up with it, lifting the vehicle.

Locking principle: When the vehicle reaches the required height, the hydraulic pump stops supplying hydraulic oil, and the hydraulic oil in the hydraulic cylinder is locked. At the same time, the safety locking device on the pillar will be activated to ensure the safe fixing of the pillar and the vehicle.

Tire positioning and adjustment: After the vehicle is lifted and fixed, the operator can perform wheel positioning and adjustment by adjusting the sliders and snap springs on the lift. Sliders and circlips adjust the wheel position to ensure suspension and tire geometry and angles are within specification.

Lowering process: When the vehicle needs to be lowered, the hydraulic pump will change the flow direction of the hydraulic oil so that the hydraulic oil in the hydraulic cylinder returns to the hydraulic oil tank. The return flow of hydraulic oil causes the piston in the hydraulic cylinder to drop, thereby lowering the strut and vehicle.

Safety protection: 4 post car alignment lifts are usually equipped with safety devices, such as overload protection, emergency stop button and safety locking device, to ensure safety during operation.

Through the control of the hydraulic system, the 4 post car alignment lifts can provide stable and reliable vehicle lifting functions. It has a large load-bearing capacity and stability and is suitable for various models and sizes. At the same time, the adjustment device on the lift enables the operator to perform precise positioning and adjustment of the wheels to meet the requirements of the vehicle suspension system.

Usage scenarios and advantages of 4 post car alignment lift

The 4 post car alignment lift is widely used and is well used in the following scenarios:

Car repair shop: 4 post car alignment lift is one of the important equipment for car repair shop. It elevates the vehicle so technicians can perform wheel alignments, suspension adjustments, tire changes and other repairs. The lift's stability and support allow technicians to work safely and accurately.

Vehicle inspection center: In the vehicle inspection center, the positioning lift is used for wheel alignment detection and adjustment. It lifts the vehicle to the proper height for instruments and sensors to accurately measure wheel geometry. The smoothness and precision of the lift are critical to obtaining accurate measurements.

Speedway: Speedway requires fast and accurate adjustment and positioning of racing cars for optimum performance. The 4 post car alignment lift provides a reliable lifting platform, enabling racing teams to quickly adjust the suspension system and tires of the vehicle to meet the requirements of different tracks and road conditions.

Large vehicle maintenance: Since 4 post car alignment lifts have a large carrying capacity, they are also suitable for the maintenance and repair of large trucks, buses, and other heavy vehicles. These lifts are capable of stably supporting heavy vehicles and provide enough space and flexibility for a variety of maintenance tasks.

In summary, the 4 post car alignment lift is an important tool that is widely used in places such as car repair shops, vehicle inspection centers, and racing tracks. It provides a stable platform and assists the operator with wheel alignment and adjustments to ensure the vehicle's suspension and tires maintain the correct geometry and angles.


Stability and safety: The 4 post car alignment lift provides a stable lifting platform that can safely lift and support the vehicle, providing a safe working environment for the operator.

Versatility: The lift fits a wide variety of car models and sizes and can be used for wheel alignment, suspension adjustments, tire changes and other maintenance tasks.

Precision and adjustability: The adjustment device on the lift allows the operator to precisely position and adjust the wheel to meet the requirements of the vehicle suspension system.

Ease of operation: 4 post car alignment lifts are usually equipped with a simple and easy-to-use control system, which enables the operator to quickly and accurately control the lifting and adjustment process.

Precautions for using 4 post car alignment lift

When using a 4 post car alignment lift, the following things need to be noted to ensure safe and effective operation:

Follow the operating manual: Carefully read and understand the operating manual of the lift. Familiarize yourself with lift features, safe operating procedures, and maintenance requirements.

Safety inspection: Before using the lift, carry out the necessary safety inspection to ensure that all safety devices and mechanical parts are in normal working condition. Check the hydraulic system, strut locking device, fastening bolts, etc.

Load limit: Know the maximum load capacity of the lift, and make sure that the vehicle to be lifted does not exceed the load limit of the lift. Exceeding the load limit may cause the lift to become unstable or malfunction.

Vehicle positioning: Make sure the vehicle is properly driven into the lift and placed on the support points to ensure that the vehicle remains balanced and stable during the lift. Make sure the vehicle's center of gravity is centered on the support point.

Safety locking device: After lifting the vehicle to the required height, make sure the safety locking device on the pillar is properly locked to prevent the vehicle from falling down accidentally. Make sure that the locking device is secure and secure.

Balanced load: Ensure that the load of the vehicle on the lift is balanced to avoid overloading or unbalanced load. Distributes the load evenly over the support points to maintain the stability of the lift.

Use stable ground: place the lift on a firm, flat surface to ensure the stability and balance of the lift. Avoid using the lift on unstable or sloped ground.

Attention to operation: When operating the lift, focus on the task and remain vigilant. Avoid distractions or unnecessary movements to prevent operating errors or accidents.

Regular maintenance: Perform regular maintenance and inspections in accordance with the requirements in the operation manual. Keep hydraulic systems, safety devices and mechanical components in good working order, and replace worn parts in a timely manner.

Training and qualification: Make sure the operator is properly trained and has the skills and qualifications required to operate the lift.

Maintenance of 4 post car alignment lift

Maintaining the 4 post car alignment lift is an important step to ensure its safe operation and long service life. Here are some common maintenance recommendations:

Regular cleaning: Keep the lift clean and remove dust, oil and other debris regularly. Use the proper cleaner and tools, being careful not to drip cleaner into the lift's hydraulic system.

Hydraulic system maintenance: Regularly check the fluid level and oil quality of the hydraulic system. Make sure the hydraulic fluid is clean, free from contamination and of the proper viscosity. Follow the manufacturer's recommendations for hydraulic fluid changes, and check and clean hydraulic filters regularly.

Bolt and fastener inspection: Regularly inspect the bolts, fasteners and key connection parts on the lift to ensure that they are firm and reliable. Tighten and replace as necessary.

Safety device inspection: Regularly check the safety locking device and other safety devices on the pillars to ensure that they are working properly. If any malfunction or damage is found, repair or replace it immediately.

Operating system inspection: Regularly check the operating system of the lift, including the control panel, buttons, switches and electrical connections. Make sure they are working properly and there are no loose, damaged or worn parts.

Lubrication and lubrication system: Lubricate the lift's lubrication points regularly according to the manufacturer's recommendations. Use the proper lubricant and make sure the lubrication system is working properly.

Regular inspection and maintenance records: Establish inspection and maintenance records of the lift, record the date, content and signature of the maintenance personnel for each maintenance. This helps track maintenance history and provides reference and evidence.

Professional maintenance: Regularly invite professional technicians to conduct a comprehensive inspection and maintenance of the lift. They have the expertise and experience to spot potential problems and repair or replace them.

We need to note that the above suggestions are for reference only. Exact maintenance and upkeep requirements may vary by lift model and manufacturer. Therefore, always follow the manufacturer's operating manual and maintenance recommendations, and consult a professional technician when needed.


Leaving a message
verify code
< 1 >
Where to buy Become our distributor