Nice work and troubleshooting man. Excellent job!

@MakersAcres

Жыл бұрын

Thank you!

How did you go about bleeding the hydraulic lines?

@MakersAcres

2 күн бұрын

This is such a small unit that I didn’t bother. When the pump kicks on it pressurizes the manifold and then back into the tank. The lines were so short, I bet it happened almost instantly. The longer lines like drive and up and down, I just cycled a couple times. If there was a chance of running the pump dry for more than a few seconds, I would have been concerned.

I have a skyjack scissorlift 7127 and in board a light blinking and where I found de code of that

@MakersAcres

26 күн бұрын

I would check out heavy equipment forums and make a post in the scissor lift section and someone probably knows.

solid determination, i probably would have quit when the control module wasnt doing the dance it was suppose to, cracking open circuit boards is a bit beyond me, solenoids, relays, grounds, powers, diodes, ect are all simple and easy to test to me but shrink it down to a board that fits in your hand and all of a sudden i find it too complicated have a JLG T500 im having headaches with currently had it to two seperate heavy equipment mechanics that say they specialize in lifts but neither have been able to fix it.. one charged me 335$ to replace an automotive style relay.. and the machine stopped working the same day they fixxed it getting code 9-9 which is mosfet circuit short circuit module failure.. the ignition relay gets incredibly hot within a couple minutes of key on im wondering if thats indicating a short circuit.. jlg made the wiring diagrams far more complicated than necessary by only making a single one for every possible option a t500 comes in which ranges from engine drive to battery powered, and tow behind to tracked self driven.. so theres piles of circuits, junctions, and sections of the diagram that dont apply to you, or part of them apply to you and part of them dont, or the same component is on the diagram in 4 different locations for how it interacts with different configurations you ever consider doing an answering service for trouble shooting? where people chuck you a few dollars to help them walk through a problem over messenger and give them idea's/info/trouble shooting instructions.. id love to test my sevcon module, its essentially a fancy 2000$ solenoid, it only has positive in negative in, motor + and motor - with a 4 pin control connection but part of that 4 pin connection is a can bus hi and can bus low, i dont really understand what theyre meant to supply in voltage or if its some kind of pulsing signal? how one would go about checking to confirm if those signals are properly incoming and the issue is in the box, or if those signals arent proper and the issue is upstream

@MakersAcres

Жыл бұрын

Yes, I agree with you. Some of the new stuff you simply can’t diagnose. This was an older control board, so I felt pretty confident that I should be able to find the damaged components and then I got too stubborn to give up! I agree that the JLG manuals and diagrams are not great and could be a lot clearer. You are right, it does sound like a short. Mosfets can fail in a way that does short them out and if you can get to the pins you should be able to test them. As far as can bus, that is a pretty hard thing to diagnose. Can bus is like Ethernet. It is a communication protocol and you have to send the right series of commands to get the device to do anything. If you want, go to the about section on my KZread channel from a desktop computer and you can get my email address and reach out to me.

Hey great job on this one. I have a lift that I’m having issues with as well. I popped a resistor and a cap on the board. The charger went TU and shorted Anyway. I was wondering if you could send me a high res pic of the board and the values of the cap at C15 and the color bands on the resistor right next to it. They’re located on the side of the board opposite the plugs located by the center of the 5 lower capacitors.

@MakersAcres

17 күн бұрын

Sure. Please reach out to the email in the about section and I’ll help you out.

@intense14u

16 күн бұрын

Thanks for the reply. I didn’t see an email in the about section so I followed the links to your website and emailed through there. Thanks again.

@MakersAcres

15 күн бұрын

@@intense14u I think that is an app issue. I think you have to be on a desktop to see it. Anyhow, I got your email and I’ll dig through my pictures!

I just bought a 2033e and I'm having similar problems. When I'm in lower control, the red led stays solid until I press the up or down toggle, then I get a 3-3 led code. Any recommendations??

@MakersAcres

5 ай бұрын

So that same chip is probably blown on the controller. If you can open the controller up, you should be able to see right away if it is damaged or not. I was able to get everything working again and I linked to all the components you need if you have the same problem. The one thing that you might need is a new CPU and you will need someone who is an expert is soldering to swap that.

Great video! I am working on an old JLG ( I think ) I cant find anywhere to tell me what kind it is. There are wires hanging from the back. I have figured out they are for the up and down but idk what else they may work. I have tried looking for pics on line with no luck.

@MakersAcres

Жыл бұрын

Does if have a controller like this? You should be able to find some ID somewhere on the unit. Maybe try and identify the pump. Some of these things should have data plates on them.

@IamOpenMindedRU

Жыл бұрын

@@MakersAcres no it doesn't have a controller like the one you were working on. This one is relays and diodes. And maybe a power converter on the front. Just got started working on it. It has a JLG battery charger that looks factory. That is the only thing that has a name on it. I am messing with it right now. Hahaha

@MakersAcres

Жыл бұрын

@@IamOpenMindedRU Well you have a better chance of fixing one without the smart controller so that’s good news. It would still be helpful to find a wire diagram. I just bought a 1980ish piece of equipment and I had to go to eBay to find parts and service manuals. But… they still existed. Just hard to find.

@IamOpenMindedRU

Жыл бұрын

@@MakersAcres Kool beans bro. Looks like you will have no problem fixing anything! I finally found the information and printed out a manual with a wiring diagram. I should be able to figure it out now. Time will tell.

@MakersAcres

Жыл бұрын

@@IamOpenMindedRU Awesome! Good luck. Let me know if you get it running!

Great work bud!. Is this why there are a ton of these lifts for sale at ritchie brother auctions?. I wonder how much a shop would've charged to do what you did on this video.

@MakersAcres

Жыл бұрын

Ya, I think most companies just buy a new lift because the work I did would have probably cost more then one if you took it to a shop. I didn’t say this is the video, but you can send these boards off to a repair house and they charge you 700-1000$ to diagnose it, then repair fees on top of that. I really wanted to understand the root cause of this issue so I could fix things like this in the future. I learned a lot from this process, which I think is valuable.

@utubehandyman

Жыл бұрын

@@MakersAcres yea great work dude. Now you can buy these lifts for cheap and fix them up and resale!,

@MakersAcres

Жыл бұрын

@@utubehandyman the thought has crossed my mind. I have a few new pieces of equipment that I have not shown the channel yet.

@andrewhallmi

Жыл бұрын

Wow, awesome. I have this same unit in pristine condition with a 3-1 error like you had for open circuit. Hopefully the board isn’t bad… not sure I have the skill level to do all that. Thanks for sharing.

@oachs83

Жыл бұрын

I have the same lift and now the drive stopped working. It steers and goes up and down but does not go forward or back. The green indicator light on the joystick control box goes out as soon as I touch the joystick and I have to repress the button. I see a flash code of two flashes a pause then two more flashes. Also I have seen it flash five times pause and two more flashes. If you have any guidance I really would appreciate it, thank you.

All JLG lifts are manufactured broken, it must be American thing...

@MakersAcres

5 күн бұрын

I don’t know that I have enough experience with JLG to make that call, I can make that call about Bobcats though!

hey have you got the counter weight for the skid ? that would really help with the tipping.

@MakersAcres

9 ай бұрын

No, I don’t have the weights for it. I have heard that does help a bit! I have been looking for them on auction.