How To Install Garage Door Opener Gear

Align the opener s rail with the center of the garage door.

How to install garage door opener gear.

Step 1 unplug opener. Remove the chain and cable assembly. Slide the motor assembly off the drive shaft and place in a safe place. Garage door installation and replacement costs may vary according to style and size.

Slide the old gear off the shaft and replace it with the new gear. With the gears back in place tighten the chain as directed in your owner s manual. Replacing a garage door opener gear is not a difficult project but does require some care and attention to detail this gear is situated between the belt and the motor drive. Pull the chain toward the garage door and hold it in position.

Place the plate in the groove hold the gear assembly level and mark the end of the shaft on another 2 4. You should have 1 2 inch of play in the chain. Then remove the roll pin photo 3. This home depot guide will explain the cost to install garage doors and openers or replace existing ones so you can decide which options are best for your budget.

Position a work table near the area under your motor unit to hold the garage door opener. Before doing any work on the garage door opener you must unplug the opener to guard against the possibility of an accident. Use a step ladder to access the garage door opener s power cord and motor unit. Be sure to put your hand under the motor before removing the last screw to prevent the motor from falling.

Put a thin layer of the grease included in the kit on the gear. Thread the nut s facing the door clockwise until it meets the bracket then release the chain. Place the opener on a ladder and use scrap lumber to get it at the height you need. This is a video on how to change the gear sprockets in a craftsman garage door opener.

Follow the manufacturer s instructions to assemble the opener and mount the rail to the header bracket above the door. Reinstall the roll pin using the same jigs. Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener. Lower the motor unit down.

Remove the four 5 16 hex head screw s that hold the motor assembly to the frame of the garage door opener. Drill a hole in the wood and insert the end of the shaft. This was a craftsman model 139 53976srt.