John Deere 8370R hydraulic diagnostics - This one ALMOST stumped me!

Going back to the 8370R that the customer is complaining of hard steering when turning on the end rows while planting. Got to love a good challenge! Continuing from part 1, I am back to replace the load compensation valve on the main pump that I could NOT get to adjust because the adjustment screw was seized solid. Got to get the main pump pressure up to continue diagnostics. One thing leads to another and I end up having to yank the duals off to make some pressure adjustments and replace the whole entire priority valve housing.

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[ttlhuskereastcampus]

In 1985 I wrote Caterpillars systems and diagnostics procedures for LSPC hydraulic systems to fully adjust margin pressure and relief pressure. Three of designed the Caterpillar differential pressure gauge group. If you work on LSPC systems get this gauge. It’ll save you a lot of headaches

[markbowling]

Intermittent problems and not being to recreate the problem can be one of many rabbit holes to go down . Great job, love the content takecare 🇺🇲🚜

[mitchellunger]

Zeth before you completely go down the rabbit hole does the planter have a hyd fertilizer pump? If it is bypassing or the screw to adjust flow is backed all the way out it will be taking the steering away. Had this exact thing happen last year. Unhooked planter and tractor was fine.

[stevetemby]

I feel your pain installing the valve, almost thirty years working on forklifts I came across a few where removing parts to gain access took longer than removing the valve itself. Love the channel and its content 👍

[ianmckay]

Glad I got out of the trade before Hydraulics got so damn complicated, tying it all to the trans etc. Things were simpler in my day, except for combines of course. Thanks Zeth for taking tiny steps rather than big strides. Look forward to next video. From UK.

[rosshall]

Believe me I know it's like to do surgery on John Deere equipment but then again you're happy when it's done and it works quite well for you after that

[refurbansuburban]

I always like to watch a good troubleshooter. Thanks for bringing us along!

[allenbrown]

Good job troubleshooting and not just throwing parts at it. Be Safe!

[heatherkohlwey]

I think the faucet can turn off now. Drought to flood in a year. It's always enjoyable to watch you work. With each job you have an opportunity to learn something, so the next time you run into something similar, you have a better idea of an approach. Each job adds something to the library. Thank you for the interesting video. Stay safe, and God bless.

[raycollington]

There’s a lot of hydraulic oil doing a lot of different jobs at the same time here Zeth. I understood your clear explanation of the respective components. If I was a rich farmer I would draw comfort that the Deere support network had people in it like you that know what they’re doing.
Enjoyable watch Zeth, thank you.

[kevinknight]

If Mr. Z says something is Heavy, it's HEAVY. Thanx for sharing. 😃

[nicoaguiar]

I love watching your videos, very good content, honestly it is wonderful to be able to see you and learn from all your work, thank you for your channel, happiness

[hunterdespain]

went down the rabbit hole once before and we replaced the hydro pump and everything was back to normal. Customer said the steering would work in the field but on the road it was very hard. Haven't had any problems with it since.

[SteveNicoson-ui]

Thanks for another awesome video ZK and Joseph.
It was extremely informative and interesting and enjoyable to watch.

Wow. This tractor gave you a run for its money. You had lots of testing to do and I know from watching you, you didn’t know exactly which way to go with this one. Appreciate the fact you gave the customer the benefit of replacing that valve body under warranty. Like you said, hard to say what the issue is because you never got it to fail. Agree with your decision to replace the valve body and go from there.

I give you a tip of the hat for fighting that new valve body back in there. What a struggle. So many lines to hook and rehook back up. And it appears to be doing ok now.

On to the combine for you and Joseph. He appears to work well with you. Thanks for teaching him.

Thanks for everything ZK. Really enjoy your videos. You are one of the best John Deere has

Hang in there. Take care.

The Iowa farm boy. Steve.
😊😊👍👋🇺🇸🇺🇸

[derbieso]

Thanks for sharing your expertise on this stuff Mr. Z. The tools you are using are awesome.

[genechronister]

Another awesome vid! Keep the deere's running!

[grizzlyridgerunner]

Wow, what a nightmare .Great job, ZK MASTER TECH. Thanks for sharing 👍 Great video .untill next video ✌️🇺🇸

[sharonbell]

Hi zeth John from England another great video keep them coming watched every one 👍

[johnlangley]

ZK master tech with patience of Job God speed to brother love your channel 😅

[wegwerfholz]

Greetings from Germany. Super exciting videos and super cool explanations. Keep up the good work.