Showing posts with label repairs. Show all posts
Showing posts with label repairs. Show all posts

Saturday, March 23, 2024

Construction Project - Prep an I Beam

The deflection my 2nd floor joists meant that I needed to provide them some kind of support. The building codes and span tables only tell you the maximum span allowable for a given set of joist sizes and spacings. They don't say anything about how a floor should feel while walking on it.

I really didn't want to have to put a beam in - I've sistered joists, put in extra lvl beams, and put in longitudinal metal straping (like a suspender) along both sides of the doubled/tripled joists - but the sensation while walking on the second floor still wasn't right. 

I bought a 23 foot long W8x18; its 8" tall and weighs 18 pounds/ft.  I welded plates on the bottom of each end to facilitate bolting the columns to the beam, as well as welding short pieces of threaded rod so I can bolt a 2x4 wood nailing strip to the top of the beam. That lets me nail the joists to the top of the beam.

To raise it up, I will build 2 short walls on either side, and at each end, of the beam. Those walls can support a come along. I'll raise it slowly and block it off as I go up. Ultimately I can use two bottle jacks to finish putting it in position, then install the columns at each end.

Things, and attitudes, I learned more than 30(!) years ago make this possible.


 


At each end there is a continuous bead of weld on the underside of the plate.

Got it in with a little guidance from my neighbor

One of the columns will bear on the built up 2x12 beam at the top left of the above photo.  There is a window in the basement just below the position of that column requiring a much more substantial header, and there was no room to fit it above the window in the basement.  For the other end I'll have to put a small footing in the basement and bring a column up to the first floor level. A column on top of that will hold up that end of the beam.


Wednesday, July 19, 2023

Typical Repairs

 Now that things have slowed down a bit I'm starting to repair the equipment that broke or was damaged in the past few months.

The support stand for the tine weeder got bent when I was attaching the implement to the tractor. I didn't take a before picture, which would have showed the tube was bulging and cracked. I got the protrusion hot and used the hydraulic press to get it flush with the surrounding material, then welded short flitch plates on all four sides of the tube.

(Click on picture to make it bigger.)

I normally use 6011 welding rod, as it cuts through rust and paint, which I often can't remove from the metal I'm welding. In this case I suppose I could have used a 7018, as it leaves a nicer weld bead, but once the paint goes on it'll look good.

Tuesday, July 27, 2021

Before Wheat Harvest: Repairs to Deere 625F Bean/Grain Header and EZ Trail Header Cart

Many of the problems that we face are analogous to the "Fox, chicken, and a bag of feed" puzzle, in that the practical steps leading to a solution are often "hidden".

A farmer lives on a small plot of land next to a river. One day, he travels across the river in a small boat and purchases a fox, a chicken, and a bag of corn from a feed and supply store. When the farmer returns to his boat to cross the river again and go home, he realizes he has a dilemma.

The farmer can only take one item in his small boat at a time, otherwise he risks capsizing. He cannot leave the fox alone with the chicken, because the fox will eat the chicken. He cannot leave the chicken alone with the corn, because the chicken with eat the corn

How does the farmer successfully get all three items across the river?

 

The sickle bar on the bean head had a few broken teeth and knife guards, Dad/Gramps has been replacing them. There are a few other things to fix: The Crary Air input shaft needs to have the clutch repaired. I think there's a faulty hydraulic cylinder on the main reel as well as a leaking hydraulic hose that needs attention. Quite a few of the fingers on the auger need to be replaced. When all that is done we'll go over the sickle bar adjustment procedures in the Operator's Manual to make sure everything is running smoothly.

After repairs are finished the head will be used to harvest the spring wheat, which will be ready in about ten days. Right now I think, because of low weed pressure in the wheat, I can direct cut it with the bean head, rather than swathing it in windrows then using the pickup head to combine it. Assuming we get a little bit of moisture in the next couple of weeks I'm then planning on putting in a cover crop of peas, turnips, and radishes, as the berseem clover I underseeded the wheat with back in May failed to get established, I believe due to lack of moisture later in the month of May.

The original welds holding the tube to the cart were broken and the angled support bracket had been pushed about 1.25 inches toward the rear of the cart. Could have been caused by improperly putting the header on the cart, we're not sure.

I pushed the support bracket back in place using a steel wedge and rewelded the joints. The cart still needs to have two of the tires replaced: one is the wrong size, the other is bald/worn out.

(Click on any picture to make it bigger.)

I welded a piece of scrap 4x4 tubing below the cart's 4x6 beam to act as a brace I could push against with the metal wedge in the next pic. Other pieces of scrap metal were clamped on to either act as spacers or to distribute the point load from the wedge along the length of the cart's vertical brace/leg.


I added some little gussets to help prevent any future cracks. There's a lot of stress on that little clamping plate. I'm not surprised the original welds cracked. Glad to have it taken care of, as having the head slide around while going down the highway would be a problem.