Herbie Murray
Changing or converting sleeper air bags can be a complex process, and the steps may vary depending on the specific vehicle and setup. It is important to note that there are different methods for changing sleeper air bags, and one popular method involves working on the suspension system, including the air bags, linkages, and levelers. It is crucial to have the necessary knowledge, skills, and tools before attempting any repairs or modifications to ensure safety and avoid further damage. Additionally, seeking guidance from experienced technicians or mechanics is always recommended when dealing with complex vehicle systems like airbag suspension.
| Characteristics | Values |
|---|---|
| Preparation | Get new bags to observe the bolts holding the top and bottom together. |
| Measure the height from the frame rail to the bottom of the sleeper. | |
| Place blocks of wood between the frame and sleeper for support. | |
| Removing the old bags | Hold the leveler arm up to raise the sleeper and make it easier to change. |
| Hold the leveler arm down to drain the air. | |
| Remove air lines going to bags. | |
| Remove the linkage arm from both levelers. | |
| Remove top and bottom bolts. | |
| Slide out the old bags. | |
| Installation | Install new bags in reverse order of removal. |
| Adjustments | Re-adjust levelers if needed, doing one side at a time while the other side is empty. |
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What You'll Learn
Prepare the new air bags and measure height from the frame rail to the bottom of the sleeper
When preparing to change the air bags on a sleeper cab, it is important to first acquire the new air bags. This will allow you to see how many bolts are holding the top and bottom together. Once you have the new air bags, you can proceed to measure the height from the frame rail to the bottom of the sleeper. This measurement should be recorded for future reference. It is important to note that you should also be careful with your hands under the sleeper and ensure that it is well-supported. Additionally, if you have two levelers, it is recommended to adjust one side at a time while the other side is empty.
Before beginning the installation process, it is crucial to have a clear understanding of the sleeper cab's dimensions and the specific requirements of the new air bags. This includes measuring the height from the frame rail to the bottom of the sleeper, as this will impact the placement and adjustment of the new air bags. Taking accurate measurements will ensure a proper fit and help prevent any unnecessary adjustments later on.
To measure the height from the frame rail to the bottom of the sleeper, you will need a tape measure or a ruler. Place one end of the tape measure at the centre of the frame rail and extend it downwards until it reaches the bottom of the sleeper. Take note of the measurement and record it for future reference. This measurement will be important when positioning the new air bags to ensure they are installed at the correct height.
Preparing the new air bags involves ensuring they are ready for installation. This includes inspecting the air bags for any defects or damage and ensuring they are inflated and functioning properly. It is also important to refer to the manufacturer's instructions or a mechanic for specific guidelines on preparing the new air bags for your particular sleeper cab model. This may include additional steps or considerations specific to your vehicle.
By following these steps and taking the necessary measurements, you can ensure that the new air bags are properly prepared and ready for installation. Replacing the air bags on a sleeper cab requires attention to detail and a methodical approach to ensure a safe and successful outcome. Taking the time to carefully measure, record, and prepare the new air bags will facilitate a smoother installation process and help you achieve the desired ride quality and performance.
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Remove the linkage arm and leveler arm
To remove the linkage arm and leveller arm, follow these steps:
First, ensure you have the necessary tools and equipment, including new air bags, blocks of wood, and any required measurements. Measure the height from the frame rail to the bottom of the sleeper and record this measurement. This will ensure that the new air bags are installed at the correct height.
Next, locate the linkage arm and leveller arm. You may have only one leveler arm, but if you have two, work on one side at a time while the other side is empty. Hold the leveller arm up to raise the sleeper, making it easier to access the linkage arm. Remove the linkage arm from both levellers or the single leveller if applicable.
Now, hold the leveller arm down to drain the air from the system. This step is crucial to ensure the safe removal of the air lines and bags. Once the air is drained, remove the air lines connected to the air bags.
At this point, you can proceed to remove the top and bottom bolts securing the air bags. Slide out the old air bags, and you're now ready to install the new air bags by following the previous steps in reverse order.
Remember to always support the sleeper adequately to ensure your safety and prevent any damage to the vehicle.
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Drain the air and remove air lines
Draining the air from your air suspension system and removing the air lines is a crucial step when changing sleeper air bags. Not only does it ensure a safer work environment, but it also prevents potential damage to the system. Here's a detailed guide on how to accomplish this task effectively:
Understanding the Process:
Before you begin, it's important to know why draining the air is necessary. Over time, as the air compressor heats and cools, condensation occurs, leading to the formation of water inside your air tank. This water can cause rust, especially in steel tanks, resulting in an orange sludge that can find its way into your valves and bags, causing significant issues. Therefore, draining the air and removing the air lines are essential steps to maintain the integrity of your air suspension system.
Prepare the Vehicle:
Park your vehicle on a level surface and engage the parking brake to ensure it remains stationary throughout the process. Locate the air suspension system, which is typically found near the frame rail or under the sleeper compartment. Identify the air lines, which are the hoses or tubes that carry compressed air to the air bags.
Draining the Air:
Start by locating the drain cock or valve at the bottom of your air tank. This is usually the lowest point of the tank, allowing for easy drainage. Place a container or pan underneath the drain cock to catch the released water and compressed air. Open the drain cock or valve and allow the water and air to escape. Ensure you perform this task safely, wearing protective gear, including gloves and eye protection, to avoid any injuries.
Removing the Air Lines:
Once the air is drained, you can proceed to remove the air lines. Start by identifying the linkage arm or leveler arm connected to the air bags. Support the sleeper compartment by placing blocks of wood between the frame and the sleeper to ensure stability. Hold the leveler arm in the desired position (up or down) to gain better access to the air lines. Using the appropriate tools, carefully detach the air lines from the air bags. Be gentle to avoid damaging the fittings or connectors. You may need to loosen clamps or couplers, depending on your vehicle's configuration.
Final Steps:
After successfully removing the air lines, it's important to inspect the connections for any signs of damage or wear. Ensure that the O-rings or seals are intact and in good condition. If any parts require replacement, do so before reinstalling the new air bags. Additionally, take this opportunity to clean the connections and fittings to prevent debris or contaminants from entering the system. Finally, before reassembling, refer to the vehicle's service manual or seek professional guidance to ensure proper installation and safety protocols.
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Remove bolts and slide out the airbag
Changing air bags on a sleeper cab takes some time and effort, but it can be done. To remove the bolts and slide out the airbag, follow these steps:
First, ensure you have the necessary tools and new airbag replacements. It is important to note that there may be one or two bolts holding the top and bottom of the airbag in place, so having the new bags will help you identify this. Before beginning, measure the height from the frame rail to the bottom of the sleeper and record this measurement. This will ensure the new airbag is installed at the correct height.
Next, you will need to remove the linkage arm from both levelers. If you only have one leveler, simply hold the leveler arm up to raise it, making it easier to change the airbag. Place blocks of wood between the frame and sleeper to provide support. Now, hold the leveler arm down to drain the air from the airbag.
After this, you can remove the air lines going to the airbag. Once this is done, you are ready to remove the bolts. Remove the top and bottom bolts that secure the airbag in place. Be careful with your hands under the sleeper, ensuring it is well supported. Finally, with the bolts removed, you can carefully slide out the old airbag.
The installation of the new airbag will be the removal process in reverse.
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Install the new airbag in reverse order
To install the new airbag, first, place the new airbag in the correct position, ensuring it is properly aligned. Next, secure the airbag in place by tightening the bottom bolts, followed by the top bolts. Ensure the bolts are securely fastened to hold the airbag in place.
Reconnect the air lines to the new airbag, ensuring they are properly attached and secure. Remove the blocks of wood that were used to support the frame and sleeper during the installation process.
Slowly release the leveler arm, allowing it to return to its original position. Ensure the leveler arm is securely held in place and functioning correctly. Reattach the linkage arm to the levelers, ensuring they are securely connected.
Finally, check the airbag installation by inflating the airbag and ensuring it holds air correctly. Ensure the airbag functions as intended and provides the necessary support and comfort. Test the setup by driving the vehicle and observing the performance and comfort provided by the new airbag.
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