If you can get the part for $10 and install it yourself in an hour or less, why
not? If you have to pay a service guy $50 to install the gear, I'd probably buy
a replacement unit. They are rated for a certain number of cycles, but you are
replacing the main part that wears out.
The repair kits are widely available, and at varying but usually
reasonable prices. Half an hour's work for a good handiman or an hour
of cursing for a less adept person makes it good as new. Just follow
the (simple) instructions closely - particularly in regard to the
application of the supplied lubricant.
If the gear is $10, you can easily get another 5 to 15 years from the
opener. If the gear ends up being $50, buy a new lift.
While you are working on it, be sure the springs are balancing
properly so as not to strain and wear parts out faster than needed.
Ironically, been there done that about two weeks ago. I think the shavings
from the worn gear mostly happen during their last efforts of trying to grip
into each other, only to slip more and more.
I have a Chamberlain (Liftmaster Product) and the exact same thing happened.
I bought the kit containing the gears and replaced them all. It was easy as
long as you lake your time. The kit cost me $40 and IMO, much better than
spending $150 plus for another opener, then taking the time to remove the
old and install the new.
My Craftsman Door opener gears were replaced some 6 years ago. It was 20
years old at the time. The Craftsman model number begins with 139 which
makes it a Liftmaster.
I have a Sears repair facility about 15 minutes away. The kit cost me
$22.72 which included tax.
I still have the box containing the parts that I did not replace,
including the worm drive. I only used the nylon gear that the worm drive
The box contained the replacement gear, worm drive, washers, etc.
necessary to completely replace all the old parts.
Text on the box.
Drive Gear and Worm Set.
MFG Code 125512
Contents Made in the U.S.A
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.