Originally Posted by Herk7769
I am sure someone mentioned it, but the weak point in a bumper mount is the bumper attachment welds and the tissue paper bumper itself:
No, I believe this is the first time I have seen it mentioned. I did notice it though. The square tubing bumper is about half the thickness of the square tubing I got to support the plate my generator is placed on. My welder overlapped the plate so it is also welded to the frame on that corner. This acts as a fish plate giving much more support.
I do think I am going to bring him back and have him add fish plates on the underside between the bumper and frame on that side. I then want the same thing done to the other side. Then the generator would have to tear the bumper in half to fall off, not very likely.
I considered placing a square tube inside the original bumper. This would add a lot of strength to the bumper but would not help the welds to the thin metal bumper itself. I could add a pipe inside it that fits snug but again, will not help the welds on the bumper. This would be a waist of time.
Got to look but may be able to weld a piece of angle iron across the two I beam frames underneath. Then add a fish plate from it to the two square tubes supporting the generator plate. Got to look underneath to see if enough of the frame is exposed to do this though. This would take a lot of the stress off the thin bumper.
Would have done this the first time but did not know how thin the bumper was!