I’m a machinist in America. I don’t know shit about axles, but I do know machining and honestly I’ve seen guys do worse with more here. I think looking at the broken piece after they got it off, you can see it was cracked about 25% of diameter for awhile before it finally failed catastrophically. It probably costs about $25 for these guys to make this repair vs multiple thousands for a new axle. While their trucks are overloaded, they’re not driven at anywhere near their rated top speed for load. Carrying 20 tons at 65mph and hitting potholes is a lot more dynamic than carrying 35 tons at 25mph. Again, idk wtf I’m talking about. But I’m just thinking out loud. If these repairs didn’t last enough for them to be worth doing, they wouldn’t do them. They might be poor and their conditions are horrible, but they definitely aren’t stupid. I’d happily hire any of these guys for a shop.
I totally disagree with everything you say. That repair won't last 6 months. But these guys don't give a shit. Once you've paid for the repair there's no come back.
@@adybarker4733 6 months is more than no months. I think it’s really condescending to assume the guys paying for these services are some kind of ignorant idiots who don’t understand what kind of service they’re getting. Obviously these repairs will never be as good as the original part. But what’s the option? I’m sure the truck owner has his entire livelihood and every cent they had to their name tied to that truck. A new axel is probably 4x what they make in a year.
@@adybarker4733und wenn die Reparatur nur 5 Monate hält wird einfach nochmal repariert. Und wird solange gemacht bis absolut nichts mehr geht. Die Menschen in Pakistan sind arm. Für andere Reparaturen und Ersatzteile fehlt das Geld. Immerhin sehe ich hier zum ersten Mal einen Messschieber im Einsatz und einen Arbeiter der seine Drehbank pflegt. Absolut Top für pakistanische Verhältnisse
As someone watching from the US • Watching your videos is most relaxing even at 2 x speed. Hope your customers appreciate the skill talent and dedication of your workers for this very important job for the community • It’s good to see how well you understand the process of restoring shafts to get the job done efficiently - loads of experience is evident with this skilled set of workers • Watching your people doing a great job make me think there is hope for the other parts of society who don't even try to have a job. Your crew is a great role model for all of us • Thanks so very much for posting and sharing! All the best and God Bless. 🇺🇸
А что такое случилось? Нарядный станок, чистые работники, даже новый штангель вместо крон циркуля. Даже фломастер купили) ) Но токарю всё равно зачёт. Всё легко и по красоте сделал. Зато сварщик порадовал стабильностью, самый толстый гнутый электрод - всё как мы любим.)
You put the repair at the highest-stress point of the part. If you made a new stub end for the axle and placed the welded area a couple of cm outboard from the inner side of the cylindrical section of the axle, you'd be in a lower-stress area of the axle and the repair would have a better chance of holding up. Also, by drilling and threading a rod in the middle, you created a stress riser that will make another break in the same area more likely. You're better off in this situation to bevel the ends of the shaft that you plan to weld, then fixture it to maintain concentricity and weld the entire cross section with no rod or pin in the middle. Not only would this be stronger, but it's faster than machining threads to hold the parts together. Finally, when you cut threads, you should consider setting your compound to 60 degrees rather than oriented parallel to the lathe bed, which lets you cut with only one flank of the tool, allowing the chips to flow out of the cut much better and giving you a good finish on your threads. When you set it up this way, you know when you're done when you've moved the compound in (or out, in the case of internal threads) by a distance equal to your thread pitch - if you're cutting 1.5mm threads, you move the compound 1.5mm and you're at depth. Make a couple of spring passes (passes where the tool is put at the final depth, which removes any leftover material that didn't get cut due to tool or workpiece deflection) and you're done, and your threads should be as close to in-spec as you can get them without measuring them over wires.
@@kolshix во во в советское время ремонтировали все а сейчас давайте новую запчасть мы вам поменяем . ранше в магазин пришёл притащил образец продавец штангельциркуль достал и начал подбирать что похоже . а сейчас вин код давай че ты мне суешь деталь , обленились матчасть не знают
The leaf springs have almost flattened hence load on axle. Given the situation they have done a good job. But in my opinion leaf springs should go under hydraulic press for bending and a new axle will be cheaper in the long run. But as they say maybe due to financial constraints the owner is forced to make do with repairs. All the best guys
Their welding skills have greatly improved over the years, looks like a solid repair, now if it wasn't overloaded again it might last longer. You have some new equipment in your shop, but nobody wants to invest in a good welding helmet instead of having to hold the face shield in their hand. You know if you take all of the decorations off of the truck you might be able to carry more weight. When I worked at a Mack Truck dealership we delivered a Schwing concrete boom truck used to pump concrete to upper floors of a building, the paint added over 3,000 pounds to the weight of the truck, I wonder how much weight just the front bumper adds to that truck. I notice that there are now Mack brand trucks over there, they build a standard dump truck chassis that carry up to 85,000 lbs on 10 tires and they also build and 800 series that has a 25,000 front axel and 100,000 rear axels all on 10 tires.
So it’s broken before, been welded up, then now broken again, so we just do the same failed thing on the even more messed up fragments? What thought process is this?
I like the fixture for removing the support from the cross piece. I wonder if that is a specialty Hino tool fixture? 🙂 PS: It looks like it has been repaired once before. PPS: The machinist is incredibly gifted.
I'm always surprised by the fine craftsmanship of these men working with ancient, nearly worn out tools under conditions that would cause most westerners to quit their jobs.
Meine höchste Bewunderung und Respekt vor der excellenten Arbeit, welche diese Mechaniker leisten! Einen Punkt der Kritik muss ich vorbringen! Beim Schweissen in der Drehbank ist das Massekabel (Ground) nicht direkt am Werkstück angeschlossen sondern irgendwo an der Drehbank! Der Schweiß Strom fliesst durch die Maschine und alle Kugellager! 4 mm Rod und 140 Ampere ! In den Kugellagern gibt es elektrische Lichtbogen und diese werden dadurch zerstört!
Stimmt schon! Mich erstaunt immer wieder, welche Genauigkeit die Leute mit diesen ausgeleierten Maschinen erzielen. Ich meine, die schrecken auch nicht davor zurück auch die Lager nicht zu tauschen, sondern durch Ersetzen der Kugeln und Polieren der Laufflächen zu reparieren.
Красавчики, разговору нет. Не плохо сделали. Не зря время потратил. Но, вот варить голыми руками 😂😂😂 это конечно заслуживает отдельного респекта. Отчаянные типы.
OSHA is for Americans who forgot how to make things and pander to the requirements of insurance companies, who in turn pander to their shareholders. It’s a body that doesn’t give two f*cks about worker safety, only not paying out money in calima and maximising profits. Wake up you dullards!
I see that he uses a center drill before drilling….. good practice. Looks like original repair didn’t use a center shaft….. this repair is much stronger than just welding
всё вроде по уму , но что по поводу марки стали . могли бы и разные проволоки иметь для сварки разных материалов , а то всё одними обычными электродами небось варят
If you don't overload and the other guys do......guess who goes out of business? This is the problem of countries that are not too well policed or controlled. Ever was so I am sad to say!
The screw-in type of repair has definitely taken hold with these men and is probably the best way to make this type of correction. But if it happens twice, time for a new axel. 😊
