How To Fix Garage Door Chain
A new front sprocket costs.
How to fix garage door chain. Sprocket is at the end of the opener rail closest to the garage door opening. Tighten the bolts on. While calibrating the safety reverse on one of my garage door openers the chain this is a chain drive opener hopped off of the sprocket on the garage door opener. Around this sprocket as well as the gear and sprocket at the motor. Another common cause for a loose chain could be the front sprocket breaking.
If your chain is badly corroded you may need to remove the chain from the carriage assembly and soak it in lubricant for a few hours. You should have 1 2 inch of play in the chain. If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion. Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor. There are lots of tutorials on the internet for our to put the chain back on but all of them assume that there is some sort of tension adjuster with two lock nuts on it my chain.
Press down on the chain with your finger. Slide the pulley toward the garage door until the chain is stretched tight then move it toward the motor until the middle of the chain touches the upper side of the chain arm.