Introduction
This manual provides essential information for the installation, operation, and maintenance of your Arnott A-2220 Heavy Duty Rear Air Spring. The Arnott A-2220 is designed as a direct replacement for the original equipment air spring in various Ford, Lincoln, and Mercury vehicles from 1990-2011. It is engineered to restore the vehicle's original ride height and handling characteristics, ensuring optimal performance and comfort.
Safety Information
Always prioritize safety when working on your vehicle. Improper installation or handling of automotive components can lead to serious injury or damage. It is highly recommended that installation be performed by a qualified automotive technician.
- Always wear appropriate personal protective equipment, including safety glasses and gloves.
- Ensure the vehicle is securely supported on jack stands or a lift before beginning any work. Never rely solely on a jack.
- Disconnect the vehicle's battery before working on electrical components.
- Relieve air pressure from the existing air suspension system before removal to prevent sudden release of pressure.
- Refer to your vehicle's service manual for specific procedures and torque specifications.
Setup and Installation
The Arnott A-2220 air spring is designed for OE fitment. While specific steps may vary by vehicle model, the general installation process involves:
- Vehicle Preparation: Park the vehicle on a level surface. Engage the parking brake. Lift the vehicle and support it securely using jack stands or a hydraulic lift. Remove the wheel(s) to access the air spring.
- Air System Depressurization: Locate the air suspension compressor and/or air lines. Carefully depressurize the air system according to your vehicle's service manual to prevent injury.
- Old Air Spring Removal: Disconnect the air line and any electrical connectors from the old air spring. Unbolt or unclip the old air spring from its mounting points. Carefully remove the old component.
- New Air Spring Installation: Inspect the mounting surfaces for cleanliness and damage. Install the new Arnott A-2220 air spring, ensuring proper alignment with mounting points. Secure all bolts and clips to the manufacturer's specified torque.
- Connections: Reconnect the air line and any electrical connectors to the new air spring. Ensure connections are secure and free of leaks.
- System Re-pressurization and Test: Lower the vehicle partially to allow the air suspension system to re-pressurize. Once the system is pressurized, lower the vehicle completely. Check for proper ride height and listen for any air leaks. Cycle the suspension if possible to ensure full functionality.
Note: Some installations may require additional steps, such as replacing solenoids, as mentioned in user experiences. Always refer to the manufacturer's detailed instructions or consult a professional.
Figure 1: Front view of the Arnott A-2220 Heavy Duty Rear Air Spring, showcasing its robust construction and air line connection point.
Figure 2: Angled view of the Arnott A-2220 Heavy Duty Rear Air Spring, highlighting the alloy steel base and internal components.
Operating Principles
The Arnott A-2220 Heavy Duty Rear Air Spring functions as a critical component of your vehicle's air suspension system. It utilizes compressed air to support the vehicle's weight, maintain a consistent ride height, and absorb road imperfections. The air spring works in conjunction with the vehicle's air compressor and control module to automatically adjust air pressure based on load and road conditions, providing a smooth and stable ride.
Upon installation and proper system pressurization, the air spring will inflate to the appropriate level, lifting the vehicle to its intended ride height. The system continuously monitors and adjusts air pressure to compensate for changes in vehicle load (e.g., passengers, cargo) or driving conditions, ensuring optimal handling and comfort.
Maintenance
Regular inspection and basic maintenance can extend the life of your Arnott A-2220 air spring and the overall air suspension system.
- Visual Inspection: Periodically inspect the air springs for any signs of wear, cracks, tears, or abrasions on the rubber bellows. Check for corrosion on metal components.
- Leak Detection: If you suspect an air leak, spray a soapy water solution onto the air spring and connections. Bubbles will indicate a leak. Address any leaks promptly.
- Cleanliness: Keep the air springs free from excessive dirt, debris, and road salt, which can degrade the material over time. Clean with mild soap and water if necessary.
- System Check: Pay attention to any warning lights on your dashboard related to the air suspension system. Consult a professional if issues arise.
Troubleshooting
If you experience issues with your air suspension system after installing the Arnott A-2220, consider the following common problems and potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Vehicle sits too low or unevenly | Air leak in the system (air spring, lines, fittings), faulty compressor, faulty height sensor, electrical issue. | Check for air leaks using soapy water. Inspect air lines and connections. Verify compressor operation. Check height sensor functionality. Consult a professional for electrical diagnostics. |
| Compressor runs constantly or excessively | Significant air leak, compressor nearing end of life, faulty pressure sensor. | Identify and repair air leaks. If no leaks are found, the compressor may need replacement. Have pressure sensor checked. |
| Rough or stiff ride | Over-pressurization, incorrect air spring for application (e.g., heavy-duty spring on a non-livery sedan), worn shocks. | Verify correct air pressure. Ensure the air spring is appropriate for your specific vehicle trim. Inspect and replace worn shock absorbers. |
If troubleshooting steps do not resolve the issue, it is recommended to seek assistance from a certified automotive technician.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | A-2220 |
| Brand | Arnott |
| Material | Alloy Steel |
| Position | Rear |
| Item Weight | 3.52 ounces |
| Product Dimensions | 7.09 x 7.09 x 14.17 inches |
| UPC | 814989000919 |
| OEM Part Numbers | LINCOLN 3U2Z5580AA, LINCOLN 3U2Z5580BA, LINCOLN 6W1Z5560AA |
Warranty and Support
The Arnott A-2220 Heavy Duty Rear Air Spring comes with a Limited Lifetime Warranty. For specific details regarding warranty coverage, claims, or technical support, please refer to the official Arnott website or contact Arnott customer service directly. Keep your proof of purchase for warranty purposes.
