Trailer coupler

[Papasmirf]

I've changed probably 16 trailer couplers and I've welded all of them top and bottom. If you do not weld the bottom and large backward and upward force will tear the coupler up and maybe even off.

 

[clee4020]

This one is 6x14 single axle trailer. This is the first light duty trailer that was welded top and bottom.

 

[Papasmirf]

I have a 18', 16', 10' and all three are all welded. I've purchased all from the same company at Asher, Ok. These guys make a fine trailer. They also make some a little "cheaper" but all the couplers are welded. Not tacks, bolts. Welded.
Happy New Year to each of you.

 

[Arc weld]

I think the A frame couplers are designed to be welded across the back on the top and under the rolled lip on each side. The rolled lip makes for good penetration and strength. It's easiest to weld by flipping the trailer or tongue over.

 

[Papasmirf]

I agree with Arc Weld. Again, if you only weld across the top, you essentially make a "hinge" of that weld. It will only take a force slightly greater than the tinsel strength of the welding rod you use to break the weld and the coupler will hinge up and now an emergency situation.
Happy New Year to all!

 

[clee4020]

If you look at the first pic, I welded across the top then down sides and under the rolled up lip on the sides. I also put a few tacks under red sticker.

 

[yomax4]

Most boat trailers are simply bolted on. I like to add some weld for insurance. It sucks to get under there and weld the underside but it's all about not having to do it again.

 

[Arc weld]

Or losing your boat.

 

[chad22]

When I welded the trailer coupler to my towable backhoe I welded both the top and bottom of it.

I'm sure just welding it at the top on the back of it and at the top and side holes would of held it. But I wanted to make sure the coupler wouldn't come undone.

Chad

 

[clee4020]

Update...When I bought the trailer from a buddy it had a slight bend in the tongue from where he jackknifed the trailer while backing it up (you can see that in the orginal pic) That always bugged me so while had the coupler off I straightened the A-Frame. Then I welded across the top then down sides and under the rolled up lip on the sides, I welded underneath where I could. I meant to weld the safety chains on but remembered after I painted so I bolted them on. While I had the trailer in the shop I did a few mods. I built a tongue box out and added a sidewind bulldog jack. I never like the original jack because it would drag when I cross ditches. Also added jack mounts to each side of the trailer behind the axle when I have a flat.