Garage door torsion spring help to lift the weight of the garage door to assist the garage door opener. Because torsion springs are under high tension, temperature fluctuation and metal fatigue can cause the springs to weaken and adjust the tension will restore the uninterrupted operation of the garage door.
How to find garage door torsion spring; remove the garage door opener plug from the ceiling socket. Pull down on the garage door emergency trigger rope to interrupt the garage door lifting arm. Go left torsion spring and insert a torsion spring twisted bar into one of the holes in the end clamp. Hold worn bar inserted in step 3 firmly and use a Allen key or socket and ratchet to loosen the two adjusting screws on the end clamp. Caution: Torsion springs are under extreme tension and liquidation bar must be held tight as the set screws are loosened.
Then to find garage door torsion spring, lift the worn bar ¼- to ½-turn upwards, and then insert the second winding bar into the lowest available hole in the end clamp. Keep the second wrap tight, remove the first worn bar. Hold the worn bar at the final setting, and tighten the screws at the end clamp. Adjust the torsion spring on the right side, if applicable. Enable emergency lock released in step 2 of the opener track. Insert the power cord of the opener into the ceiling socket.