How would I mount a LM 3800?

[nathank]

Check out these pics of my steel building and tell me if it's possible to mount a Liftmaster 3800. I'm not sure how it would be done.

 

[nathank]

I have been staring at the LM 3800 installation instructions for 30 mins. Correct me if I'm wrong, but what I am gathering is this thing mounts with ONE bracket on the bottom of the motor unit, and the collar that attaches to the torsion bar on top? That's it??

http://www.liftmaster.com/consumerweb/pdfdocs/114A3268.pdf

 

[nathank]

And FYI, I don't have the unit so I can't look at it. I am trying to figure out if it will work for me before I drop the bucks.

 

[Daves75]

The LM 3800 mounts via the torsion tube ,this is what carries the weight of the unit. Then you are correct, it has an "L" bracket at the bottom that is used to help support the weight but also keep it from rotating up or down.

 

[IDASHO]

Id weld a plate to that red-iron frame for the lift to bolt to.

 

[tdkkart]

Probably easy enough use a piece of plywood and some self-tapping sheet metal screws??

 

[jgira12]

you just need to make a bracket that stands off the wall enough to match up with the small bottom bracket that comes with the unit. what isn't obvious, and wasn't to me until I had everything up there, is that the unit is actually mounted to the 1 inch bar via the special coupler. the wimpy lower bracket is just there to stabilize the unit and keep it from turning. this isn't pointed out in the directions...just think about it...all the weight, which is substantial, is suspended from the bar via the coupler.

 

[rwhite692]

Don't rush into the mounting right away

I would buy it a nice dinner first and put on some soft music...

 

[RbrtAWhyt]

Don't rush into the mounting right away

I would buy it a nice dinner first and put on some soft music...

 

[nathank]

Thanks all. I bought the opener, so I'm sure I'll be back with more questions once it arrives!

And FYI, got it off Ebay, $298 shipped.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170314554100&ssPageName=ADME:B:EOIBSA:US:1123

 

[colt340]

here's how mine is installed. It attaches to the jackshaft and the bracket is off to the left.