Thanks so much same problem 1986 416 . fyi if anyone has trouble with older machine that won't keep running rusty fuel tank. Friend of mine spent a year trying to figure it out thankfully only took me a week with his help!!!
Daniel Mitchell Rusty fuel tank. I learned to keep them full of fuel when not in service. I had to replace a steel tank on a diesel generator once. Sucks but works
you did that the hardest way possible... its way easier to just pull the whole valve group down...and the best fix is just to replace the whole spool valve... messing with all the check balls for the detent is a nightmare
Would the principle of this issue apply to other weakness issues? I have a mini excavator where the arm pull (is that what it's called?) is a bit weak. Could the issue be damaged o-rings somewhere in the system, like in this case?
I'm not an expert on this.... From what I have gathered though if your arm pull is weak and it strengthens when you operate another hydraulic control simultaneously then its probably something in the resolver network, so yes maybe damaged o-rings on the resolvers like I had. Best of luck!
It's usually the resolver ball assemblies that cause this problem, they're located on the side of the valve under the same style plug. be very careful because there are many different lengths to these and if you get them mixed up you can ruin the valve housing and set yourself back several thousand dollars for a new one, you were very fortunate this was your problem. 99% of the time it's not. I've been repairing hydraulics for over 30 years and the 416 cats are notorious for this problem, they should issue a recall!
Thanks for your video, it was really a great help ! However, my back bucket won't lift but I get all the other motions. I checked the seals and all were good but i don't know if a ball bearing was missing! Could that cause loss of motion ?
Chris Johns I have not worked on it in a while. I'm not giving up on it. Just ran out of time and money for now. Focusing on building a new shop now and then I'll see about resuming the project.
UA-cam tip. Before starting the video think about what you want to say. Maybe jot down some bullet points you want to cover. Then tell your story, don't bounce around in your thoughts. Don't use filler words like ummm.
Same problem here you saved me ton of time on diag. Thanks for taking time to upload. all my orings were dry rot few were missing
Happy to hear it helped you out. Not the best video I know but I had such a hard time figuring this out I wanted to be sure and share what I learned.
Continue,,,, I benefited from this video a lot, thank you
Thank you! I have a Bobcat with the exact same symptoms! You may have just saved me from having to remove my whole valve body!
I’ve been having this exact problem. Thank you
same thing happen to my 416B thank you, you saved me a lot of time!!!!
Thanks so much same problem 1986 416 . fyi if anyone has trouble with older machine that won't keep running rusty fuel tank. Friend of mine spent a year trying to figure it out thankfully only took me a week with his help!!!
Daniel Mitchell Rusty fuel tank. I learned to keep them full of fuel when not in service. I had to replace a steel tank on a diesel generator once. Sucks but works
Dude! So helpful. I have this same problem and am hoping this is it. I'll report back.
Happy to hear its helpful.
Very helpful to the young engineers
Glad I could help. I know the video quality isn't the best but there wasn't much out there which is why I made it.
It always breaks down out in the field, your lucky it wasn't in the mud, Nice job.. It's always under the tractor in a hard place to get to, Thanks..
Very helpful thanks mate.😊
Thanks for the feedback.
i used this video and repaired my machine...very informative clip thank you
Thanks pretty sure this is what my machine needs
thank you...very good video. i have the same problem but with the back boom.
Thanks alot 👌😊🥰💯
My backhoe 438series2 has a problem with lifting the backet,can you help me please
I'm don't know much more than I shared in the video. I would reach out on an online forum.
Thanks for that,i have the same problem on my 92 model 428B.
you did that the hardest way possible... its way easier to just pull the whole valve group down...and the best fix is just to replace the whole spool valve... messing with all the check balls for the detent is a nightmare
Thanks for the tip. Hopefully I don't have to do it again but if I do I'll keep that in mind.
hope this helps someone else out.... Yes, it is very important ، thanks..
It's tough when you can only get it up half way. We've all been there...
Would the principle of this issue apply to other weakness issues? I have a mini excavator where the arm pull (is that what it's called?) is a bit weak. Could the issue be damaged o-rings somewhere in the system, like in this case?
I'm not an expert on this.... From what I have gathered though if your arm pull is weak and it strengthens when you operate another hydraulic control simultaneously then its probably something in the resolver network, so yes maybe damaged o-rings on the resolvers like I had. Best of luck!
Ive done it on mycat 438B 😍
Way to go Adam. Good luck on the new project!
Thanks bro I have same problem in swing valve on my 1999 426c
thank you. have the same problem with a 432e
It's usually the resolver ball assemblies that cause this problem, they're located on the side of the valve under the same style plug. be very careful because there are many different lengths to these and if you get them mixed up you can ruin the valve housing and set yourself back several thousand dollars for a new one, you were very fortunate this was your problem. 99% of the time it's not. I've been repairing hydraulics for over 30 years and the 416 cats are notorious for this problem, they should issue a recall!
Thanks for the feedback.
Thanks man. I have the same issue.
Thanks for your video, it was really a great help !
However, my back bucket won't lift but I get all the other motions. I checked the seals and all were good but i don't know if a ball bearing was missing! Could that cause loss of motion ?
Sorry I don't know enough to say for sure but I think not having a check valve could possibly cause the problem. Hope you get it going again!
Me ayudo mucho! , thank you
Hola amigo mire que le sirvió el video yo no entiendo inglés pero si usted me puede ayudar le agradecería la válvula es igual alas 3 secciones
Tq your video can help me.very Tq
You found parts!!!!
why is the steering of caterpillar 428C heavy to move unless with moving of the bucket?
I don't know but I would guess you have the same problem - one of the resolvers is not functioning.
Any video on excavator swing circuit
No sorry. I have never worked on an ex.
What the part number for the valve assembly?
I don't know. If you make an account on the cat parts website and enter the serial number of your machine it should tell you.
Is there a problem with the CAT 428C digger?
Sorry I don't have any experience with the 428C only limited experience with my 416C machine.
@@Goldenfab I'm from Libya Does anyone know this problem?
@@فرفورالحركركوك Sorry I don't know
hello where I can get parts for the hydraulic control of the jd400 since the originals no longer manufacture them. Any recommendation
Sorry I have no idea. Might check places like ebay and ask around at local shops or online tractor forums.
Thank you i learn something knew.
cat 966h wheel loader problem lift cylinder not working
CAT 966H wheel loader problem in lift cylinder not working I need to help with me
I am HEMM Mechanic
Sorry I don't have experience with that machine.
Know how to flush and clean the entire hydraulic system at one time?
Sorry I don't. I'm sure they are for sale somewhere. I have heard of people making a flushing system.
Trash doesn't blow an oring, fatigue and pressure blows orings
thank Shalom
Ps try Lucas hydraulic fluid stop leak seal condition additive
I sealed alot of small leaks.
This is different. Shalom
Super
I need help with me
So what happened to the rotary valve engine?
Chris Johns I have not worked on it in a while. I'm not giving up on it. Just ran out of time and money for now. Focusing on building a new shop now and then I'll see about resuming the project.
What was 5he part that you replaced called after all?
I have a promblem with Transmission
Henry Mbau sorry to hear that. I don't have any experience working on the transmissions.
me too
👍👍
I.....um......uh
Reguler valve destreption cat 428 serie 2
Sorry I don't have experience with the 428.
UA-cam tip. Before starting the video think about what you want to say. Maybe jot down some bullet points you want to cover. Then tell your story, don't bounce around in your thoughts. Don't use filler words like ummm.
Thanks for the feedback.
Rick Nelson👎👎👎
That wasn't a wrench it was a socket and ratchet
The vernacular in my neck of the woods is such that all socket and ratchet assemblies are wrenches but not all wrenches are socket ratchet assemblies.
@@Goldenfab true dat! Socket WRENCH
I am writing for help with me
But I need my problem
Uhh um um uhh uhh um um um
Join valve destreption cat 428 serie 2
I haven't worked on the 428b.
Don't give me help
huumm ..hummm..humm--its annoying
Good talk