Garage door opener - correct angle? lift bar to door?

cityboyinburbsJune 16, 2012

My old Craftsman/Chamberlain 1/2 horse chain drive broke an extension spring last week.

Installed two new springs + new pulleys.

I tested it and balance is fine; almost no effort to raise/lower this heavy (145 lb.) old wood door

However I'm concerned that while the door is fairly quiet going UP, during last 1/3 of going DOWN,

it makes lots of noise, and **overhead track bows downward***.

This is a 2 car garage; 2nd door has similar chain-drive opener & no problems.

I notice that when 2nd door is closed, there is a maybe a 45 degree angle on

the bar that goes from trolly "slider" to the door, while on the "noisy" door,

that angle can't be more than 10-15 degrees.

Can this be where problem is?

Should I adjust travel of the slider on the trolly

(slider has 3 positions -holes- available,

currently set in hole closest to door, that provides least angle)

There are a lot of badly installed fixes and "upgrades" in this house,

--not me, from previous owner, I only do best work, and never ever make mistakes, ROTFL--

so would not be surprised that this c.1985 installation was ....junk.

.

Thank you for reporting this comment. Undo
don_1_2006

Find the model number of your opener and go here to download an owners manual. The manual will have complete installation instructions. Make sure the opener is installed correctly. If this problem started after your spring installation it makes you wonder.

    Bookmark   June 18, 2012 at 9:40AM
Thank you for reporting this comment. Undo
don_1_2006

Forgot this.

Here is a link that might be useful: Owners Manual

    Bookmark   June 18, 2012 at 10:29AM
Thank you for reporting this comment. Undo
cityboyinburbs

Figuring it couldn't hurt anything, I moved the movement end-point of the garage door opener to match the other opener.
Bingo, problem solved.

BTW... Read several manuals, and found nothing about angles.
But, then again, the manuals I read were for later models where the portion that attaches to the door is shaped more like a letter J, while mine is a straight bar.
The "J" shape would tend to make you put that angle there.

    Bookmark   June 18, 2012 at 2:46PM
Sign Up to comment
More Discussions
Roof leak - best way to find it?
Hi Everyone, I am a condo owner in New Jersey and own...
cpannetti
adjusting stop on lazy susan
Hi all, I have recently moved into an older home with...
blakekr
How to safely pull down attic stairs in 12' ceiling
Hello all, I am buying a house with 12' ceilings and...
ricewalker
how did gap between floor and wall close up by itself?
I have hardwood floors and there is/was a spot at the...
tlbean2004
Garage door
Something strange happened last night. We were watching...
hoganjr
Sponsored Products
Oriental Mortise Lock Set - Privacy - Blackened Brass
Signature Hardware
Vinotemp Dual Zone Wine and Beverage Cooler
FRONTGATE
Ribbons Entertainment Cabinet
$4,929.00 | Horchow
Hurley White 5 3/4" Wide Outdoor Floodlight
$63.91 | Lamps Plus
Fresca Torino 60 Walnut Brown Bathroom Vanity, Cabinets & Vessel Sink
Hudson Reed
Brown Leaf Mat
Grandin Road
Charcoal Houndstooth Aqua Shield Mat
$24.99 | zulily
Arteriors Home - Solomon Cabinet - 5352
Great Furniture Deal
© 2015 Houzz Inc. Houzz® The new way to design your home™