Liftmaster 3800 Question

[Half Baked]

I am getting ready to order 3 (10x12) doors for my pole building/shop and need to know if it's ok to use the standard 1" torque tube or do I need to upgrade to a solid shaft to use with the Liftmaster 3800 ?
Or maybe I should reword this and ask does anyone use their 3800 with a tube torque bar ?

 

[Half Baked]

any answers ?

 

[tdkkart]

IMO, the forces applied to the tube are very close to the same, the Liftmaster does not apply any undue stress to the tube that is not already there.

BTW, so far I'm using 1 Liftmaster on one of my shop doors, like it alot. Probably the only complaint I have is that it could run a bit faster, seems to run up and down very slow compared to what I am used to in openers.
Very soon, just as soon as the weather breaks I will be ordering 2 more along with new doors for my house garage, and another one for my other shop door.

 

[kvom]

I'd agree that there is no more torque applied than any other opener. However, since the opener clamps to the tube there might be a risk of deforming the tube end and thus slipping eventually. You could put some wood or metal inside the tube to oppose the clamp force.

 

[Half Baked]

Thanks thats the answers I was looking for.
Heres some pictures of what I've done so far.
Weather is holding me up lately.
All the work was done by my two sons and myself, alot of work but it's what I enjoy doing

 

[up4speed]

I see what you guys mean about trying to clamp on a hollow tube, but I've had mine on a hollow tube for a year, and it works perfectly. The way the clamp is designed, it looks like it puts fairly equal force onto the tube, so it shouldn't deform it. I also agree, that a properly adjusted door will not have a lot of force on the openers clamp. I wouldn't worry about it.

 

[matt60j]

Isn't a hollow tube used to get the set screws to "bite" in better with the springs?