Reinstall the motor unit cover and secure it with the mounting screws.
Garage door drive gear repair.
You ll need to get a replacement gear set.
Leave the plastic bushing.
Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener.
This was a craftsman model 139 53976srt.
Insert the gear and sprocket assembly into the motor unit and install the mounting screws.
Apply grease to the helical gear.
Push the helical gear onto the gear and sprocket assembly shaft and secure it with the retaining clip.
Garage door opener chain idler pulley if the chain idler pulley is broken then you may start to see your chain get off track.
It s one of the most common garage door opener repair problems there is.
Put a thin layer of the grease included in the kit on the gear.
When attempting to repair your garage door opener you re going to need the right parts.
41c4220a liftmaster chain drive gear and sprocket 26 24 24.
Slide the new spring onto the shaft and make sure the red winding cone is.
With the gears back in place tighten the chain as directed in your owner s manual.
This is a video on how to change the gear sprockets in a craftsman garage door opener.
Kipa pack 3 drive gear for sears crafsman liftmaster chamberlain garage door openers 1984 up 41a2817 41c4220a 81b0045 drive gear 32 teeth bore size 1 2 durable top quality 4 7 out of 5 stars 37 9 75 9.
Pull the torsion shaft out of the end bracket remove the cable drum then remove the spring.
Buy sears craftsman garage door opener parts at garage door supply company and enjoy free technical support from the pros.
It can be a complicated repair but not impossible to do yourself.
Chances are your main drive gear has bit the bullet.
Long lasting repair job or upgrade.
Sears partsdirect has the garage door parts you need.
Several components will need to be removed to get at the gear.
Regardless of what you need you can find it from sears partsdirect.