Jerry put the Bobcat to the test with his new modifications. Now the Bobcat needs the cylinders rebuilt. Jerry waste no time tackling the repairs. But don't stand to close! Support: / rosastringworks Website: www.rosastringworks.com
God works in mysterious ways, Jerry. Tomorrow I was going to redo the seals on one of the lift cylinders on my sweet ol' 743 Bobcat ('Bob") It has been leaking for several years! Procrastination..and a bit of fear. All I could see was $$$. You have made the chore so understandable and do-able. Monday I will get the kit. Thanks a bunch!!!
You did "Farmer fine". Those yellow rings are teflon. They need boiled in water then installed. Try to NOT stretch it when you install it. While it is still warm, place a piston ring clamp around it until it cools. It will insert into the cylinder easily. Most importantly is to hone the cylinder to remove the glaze before assembly. Before placing the piston on the rod, tape over the threads so it will not hurt your new thin o-ring. That mystery o-ring went on the rod up against the shoulder before the piston went on. (it was left off) The nut was loose because someone used an old nut and it loosened up. Your leak was the oil bypassing under the piston.
Jerry, I loved the "jump scare" when your wrench slipped near the end.. Very effective film making Mr. Hitchcock.....lol. Great video on a subject that up until now, I had no knowledge about. You deserve your OWN tv show....on PBS.
Great. I like the contrast of the machinery videos. I was raised by an engineer . So i spent as much time under my dad´s cars as i did practicing guitar as a kid. I now fix a few guitars too Cheers from madrid
I can't wait to see it in action again and hear how much better you've made it. I like this kind of video, I may never have to do this type of thing, but if I ever do, at least I've seen it done once. And if need be, I can refer back to it at that time. Now, having seen it, it's not nearly as daunting as it would be otherwise. Yet another thing I've learned from you, sir!
I knew somebody would say something about that but I had delighted stick out so that the angle would be right for the camera I didn't have much Room to set the camera
Nice fix Jerry. The only thing I would have done different, is I would have drilled new spanner holes in the end cap before reinstalling it. that, however; wouldn't have affected the function of the cylinder. Thanks for the video.
Not much different than installing a truss rod lol.....love these just as much as the instrument repairs and builds..its always a learning experience for all of us diehard fans.....
Worked at a Bobcat dealership for 2 years. We used large channel locks to remove the gland on hydraulic cylinders. No one had special tools. Right on the machine was the way we did it too. Holds the cylinder still too.
I would know what to do with a hydraulic cylinder, no problem, but how to fix a musical instrument as you do, no way I will ever know how. I am glad you got the cylinder apart so easily, I my experience they are a real pain .
Reminds me of rebuilding my Volkswagen Vanagon steering rack. Which was more complicated, but the same issues with seals and getting them in place without twisting, etc.
I rebuilt an automatic transmission once. Put one of those seals in backwards. Didn't help. And, of course, it was right in the middle. SOP, for a dumb SOB. 😣😖😬🥵🤬🤬🤬
Steel and Aluminium can be quite tricky to unscrew apart, i don't know why they cut corners like that? If that was asteel end cap it would have gone with your tool Jerry.
Jerry, I just finished watching your latest Shop Talk. This is the type of thing that you need to let go of. Take them off and send them out. It's time to start making choices. I'd like you to be recording episodes for your channel for a long time. I'm 78 and there are lots of things that I have had to give up. I used to be like you, doing all my own work.
I feel it's really a personal choice. Jerry knows what his limits are and hes talked about his encroaching arthritis and stuff on many of his excellent videos. I'm sure that if he wasn't able to do it himself he wouldn't be all precious about it and delegate to someone else, just like he brought in Melissa to run the office and Caleb to pick up the instrument repair work. I think Jerry knows when to rest and when to work.
*hydraulic oil* .. like brake oil.. attracts water.. .that's what causes the breakdown of the oil and sludge... you should probably change the hydraulic fluid..
I don't think you should put grease inside a hydraulic cylinder. The fluid acts as a lubricant, so that is what you use for re-assmbly. I watched Adam Booth rebuild cylinders a few times. He used to make them
