Repairing Chain Drive Garage Door Opener

Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage.

Repairing chain drive garage door opener.

You need to loosen the bolts located near the motor and squeeze the nut located on the opposite end to tighten the chain. In most types of carriage assemblies for door chain openers the adjustment bolt is located inside the carriage assembly. Replace the chain and cable assembly with the manufacturer approved replacement part. Your chain drive garage door opener is tasked with operating the largest moving part in your entire home with this type of responsibility you want to make sure that the opener will work consistently without any problems.

Also verify the antenna on the motor unit is in the proper placement. Of slack from the rail to the chain check your manual. Press the wall control button or remote so that the opener completes its close. You may also need to reprogram your keypad or replace the batteries in it.

Too little tension could cause the chain to skip off the sprocket and fall down on your car. A chain drive garage door usually has two small switches on the top of the unit these are triggered when small rollers attached to the chain ride into the mechanism. Located along the rail the chain an. This video from sears partsdirect shows how to replace the chain and cable assembly on a chain drive garage door opener.

The chain and cable assembly connects to the trolley and drives the trolley along the rail to raise and lower the door. Most chain drive openers suggest you tighten the chain so there s about 1 4 in. If you re too far away this can cause a problem with opening or closing the door. Over tightening the chain will put excess wear and tear on the shaft and gears.

Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door. This diy repair guide explains how to replace the chain and cable assembly on a chain drive garage door opener. How to put a chain back on an automatic garage door opener. The adjustment bolt is held in place by nuts located on the sides of the assembly.

When problems do occur you should know how to fix them easily and quickly. If the chain and cable assembly breaks the door won t move.