How to adjust garage door cable?

How to adjust garage door cable?


Adjusting the garage door cable is an essential task for maintaining the proper functioning of your garage door. Over time, the cables may become loose or misaligned, leading to issues such as uneven opening and closing, excessive noise, or even complete malfunction. In this article, we will guide you through the process of adjusting the garage door cable, ensuring that your garage door operates smoothly and safely.

Tools and Materials

Before you begin adjusting the garage door cable, gather the necessary tools and materials. Here’s what you’ll need:

– Adjustable wrench
– Pliers
– Safety glasses
– Lubricant (such as silicone spray or garage door lubricant)
– Step ladder or sturdy platform

Step-by-Step Guide

Step 1: Safety First
Before starting any work on your garage door, ensure your safety by wearing safety glasses and taking necessary precautions. Disconnect the power to the garage door opener to prevent any accidental activation during the adjustment process.

Step 2: Identify the Problem
Inspect your garage door to determine the specific issue with the cable. Look for any signs of fraying, loose connections, or misalignment. Identifying the problem will help you understand the adjustments needed.

Step 3: Loosen the Cable Tension
Using an adjustable wrench, locate the cable drum on the torsion spring assembly. Loosen the set screws on the cable drum to release the tension. Do this for both sides of the garage door.

Step 4: Adjust the Cable Length
Next, adjust the length of the cable. If the cable is loose, you will need to tighten it. If it is too tight, you will need to loosen it. Use pliers to make the necessary adjustments, turning the cable drum clockwise to tighten and counterclockwise to loosen.

Step 5: Realign the Cable
Ensure that the cable is properly aligned on the cable drum and pulley. It should be wrapped neatly without any overlapping or crossing. Adjust the cable as needed to achieve proper alignment.

Step 6: Lubricate the Moving Parts
Apply lubricant to the moving parts of the garage door, including the cable, springs, hinges, and rollers. This will help reduce friction and ensure smooth operation. Use a silicone spray or a specialized garage door lubricant for this purpose.

Step 7: Test the Garage Door
After making the necessary adjustments and lubricating the moving parts, test the garage door to ensure it operates smoothly. Open and close the door several times to check for any remaining issues. If the door still exhibits problems, you may need to repeat the adjustment process or seek professional assistance.


Adjusting the garage door cable is a task that can be done by homeowners with the right tools and knowledge. By following the step-by-step guide provided in this article, you can ensure that your garage door operates smoothly and safely. Regular maintenance and adjustment of the garage door cable will prolong the lifespan of your garage door and prevent potential issues.


– Home Depot:
– Lowe’s:
– Chamberlain:
– DoItYourself: