Hello again to you all.
I hope that you all came good and safe into the new year.
I have started to make the booms for the FEL. According to the drawing the boom should have been made of 50x50x3 mm (2”x2”x3/16”) square tube, but I got some 60x40x3 mm rectangular tubes for free by a good friend of mine. Also the plate underneath the tubes I got from him for free. This is a planed 16 mm (5/8”) thick plate.
The tubes cut to the right length and holes for the bushings standing on the one tube is drilled in one end. The other end is cut in a 120 degrees angle.
Four reinforcement plates 6mm (1/4”) thick, which will be welded outside the boom.
Here is one of the bushings welded in place.
A look inside the tubes with the bushings welded in place. The small holes are 6mm threaded holes for grease nipples.
All four ends with the bushings welded in place. The two at the right are also grinded.
Two pieces of boom.
Here is the reinforcement plates lined up on the boom and ready for welding.
But before I welded the reinforcement plates, I had another small job to do:
I made a frame for the plate I got for free and now I have a very nice and stable welding table. Two wheels make it easier to move because it is very heavy.
The plate is as mentioned 16mm thick and it is 500x1000mm.
Ok, back to the boom.
The reinforcement plates welded all the way on the outside…..
…and also on the inside.
The next thing I wanted to do was to find out where to put the support for the hydraulic cylinder for the bucket. This cylinder will be mounted on top of the downward boom. In order to do that I made these angle iron. The angle iron will be bolted to the bucket with three 10mm (3/8”) bolts in each. I also made the bushings which will be welded to the angle iron. All the bushings have holes for 16mm (5/8”) pins. The purpose with the two small bushings on the left will be explained with the following pictures.
Here you see one end of the hydraulic cylinder. It has a turning hole (I don’t know what to call it in English. It can turn sideward and around) with a diameter of 25mm (1”).
A 25mm pin is overkill so I made some bushings with 16mm holes. The small hole is to allow the grease to get to the pin which goes through.
This is how it looks when the bushing is mounted.
That was all for now.
The story will continue…..