Garage Door Chain Tension Adjustment. To achieve proper chain tension, you must release the door from the opener before making any adjustments. When the chain is properly adjusted the chain will be 1/2" (for T-Rail) or 1/4 " (for Square Rail) above the base of the rail at its midpoint.. Step 4: Tighten the Chain Once the tensioner bolts are loose, manually adjust the chain to remove any slack. Depending on your garage door opener, you may need to either tighten the chain by hand or use the tensioning mechanism to pull the chain tighter.. To do this, turn the tensioner in the direction that tightens the chain.
A loose garage door opener chain or belt can prevent you from accessing the garage if not addressed in a timely manner.. If you over tighten the chain on your garage door opener, a few things could happen. First, an over tightened chain will prematurely wear out the drive sprocket or front pulley. The reason is simply because of the amount.. Read too: No Power to Genie Garage Door Opener - Resolving the Issue with Ease: Troubleshooting Guide Expert Tips for Effective Chain Tightening. Regularly inspect the chain tension and adjust as needed to prevent excessive wear. Use a lubricant specifically designed for garage door opener chains to keep the chain operating smoothly.; If you're unsure about adjusting the chain tension.