In this blog, we'll provide a detailed guide on how to install HAAS REVO Lag Tensioners. These tensioners are essential for securing cables in various applications, and understanding their installation can ensure durability and safety.
Let’s begin by preparing your workspace. First, gather your marking template and use it to mark the spots where you’ll drill holes in your posts. This initial step is crucial for precise alignment later on.
Once your marks are ready, determine the appropriate drill bit size. Soft woods like pine or cedar require a 1/2" drill bit, while hardwoods such as oak or mahogany call for a 9/16" bit. Using the correct bit ensures the best fit and stability.
Switch on your drill and adjust it to the highest speed setting. Align the drill bit carefully with each marked spot, ensuring it remains perpendicular to the post. Drill each hole to a depth of approximately 1 1/4", then repeat this process for all marked locations.
The HAAS Stainless REVO lag tensioners consist of five main parts: the lag receiver, turnbuckle cap, turnbuckle threaded stud, turnbuckle body, and turnbuckle swage stud. Each part plays a vital role in securing the cable firmly.
Start by sliding the lag receiver onto a 3/8" hex socket bit. Adjust your drill to its lowest speed setting and carefully align the receiver with the drilled hole. Screw the lag receiver into the post until it sits just beneath the surface. Repeat this step for all remaining lag receivers.
Next, pre-assemble the lag tensioners. Begin with the turnbuckle body, which features right-hand threading on one side and left-hand threading on the other. The left-hand side is indicated by a small marker line. Attach the turnbuckle swage stud, which is also left-hand threaded, into this marked side. Ensure the threads are barely visible once assembled.
For the turnbuckle threaded stud, which is right-hand threaded, thread it into the opposite side of the turnbuckle body. Focus on inserting it into the neck-down portion with longer threads. Again, the threads should be nearly invisible after assembly. Repeat this procedure for all lag tensioners needed.
After assembling the tensioners, insert the turnbuckle caps into the lag receivers and secure the pre-assembled tensioners. With your cable prepared, pull it taut to eliminate any slack. Mark the cable at the second measurement line on the turnbuckle swage stud.
Cut the cable at the marked point using cable cutters. Remove the turnbuckle swage stud from the body and ensure the body doesn’t rotate during this process. Insert the cable end into the swage cavity of the stud, making sure it seats correctly. Position the swage stud in the die of your swager and perform two stages of swaging, rotating the cable slightly between stages.
Reattach the turnbuckle body, leaving only a few threads exposed. Insert the swage stud and cable back into the body, tightening it hand-tight. Follow this process for all remaining tensioners.
Finally, finalize the tensioning sequence. Start with the middle cable and alternate between the top and bottom cables. Use vise-grips to hold the swage stud in place and a hex key wrench to adjust the turnbuckle body until the desired tension is achieved. Double-check all cables to ensure uniform tension across the entire run.
By following these steps, you’ll achieve a secure and professional installation of your HAAS REVO Lag Tensioners. Proper tensioning is key to maintaining the integrity of your setup, and these tips will help you achieve the best results.
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