John Deere 8235R has low cab power, 7130 will not move, and a 8R 410 has a coolant leak.

[@right_around_the_corner]

I worked for a certain deer dealer about 12ish hours south of you about 10 years ago. At the time, I had less than 2 years' experience at deer, and I was #2 in seniority in the entire shop of 11 guys. I did have nine years at a different brand.. Those were some difficult times at that deer shop. Nobody knew anything.. The service manager and branch manager fired anyone who disagreed with his and her decisions. That's why I enjoy your educated ideas/video. You actually make good sense..

[@Terry-dz5ke]

Happy Father's Day

[@SteveNicoson-u1i]

Happy Father’sDay to you ZK. Enjoy your special day this weekend. Same to Joseph if he is married. The first two units you looked at both seemed to have electrical issues. Not saying I totally understand what all you did but you got them going again. Do understand why you put the cabling on the outside of the cab so you did not have to raise the cab and take the duals off. Logic takes over sometimes. That last tractor I kind of followed you. Nice shop to work in. You had that one going soon and left it to the farmer to rinse off in his shop. Super nice setup there. About it I guess. Creative day for you in this one. Thanks for teaching and showing us today. Happy Father’s Day again ZK. Till next time. The Iowa farm boy. Steve.

[@Volume_92]

Sometimes i use to listen to your videos only while trucking, tractoring or craning, even boating. keep up the fantastic work! Podcast material!

[@refurbansuburban]

It's a delight to see a master troubleshooter at work. Thanks!

[@kevinback2543]

amazing how you figure these problems out . 😢 they don't call you the master 4 nothing

[@larrycole4438]

Hope you have blessed fathers day 🙏

[@ZKMasterTech]

Thank you!

[@jonlucas6058]

That shop looked amazing. Your channel would be worth watching just to see some of the shops these machines are kept in.

[@tedcarter3573]

That shop is beautiful

[@lynwessel2471]

I had a 7800 that the 3 pt hitch wouldnt work with the lights on. JD threw some parts and labor at it but the yellow hcu light would flash shortly after turning the lights on. I got very good at removing the appropriate fuse and putting it back in in the dark while driving and I could raise up and turn around, and the light would probably be flashing again when I got to the other end.And repeat. Finally after about 2 years of this, a JD tech figured out the alternator voltage varied a lot, but apparently close enough that the hitch worked without the lights on. Replaced alternator, never happened again .

[@donalddehaven3229]

Love the channel, enjoy the content. Happy Father’s Day.

[@mfc4591]

Gear oil is the worst for me, it stinks and never comes off clothing ! Thanks for the video, hope you have a great week.

[@ZKMasterTech]

Thanks, you too!

[@utahmike3855]

Hello and greetings from Kanab Utah ... Thank you Zeth for another great video. Respectfully, Utah Mike. 🤩👍

[@grizzlyridgerunner]

Happy Father's day ZK master tech.

[@ZKMasterTech]

Thanks so much

[@DrewChisholm]

I love the 6x30's and 7x30's. My favorite to work on

[@aidanbrennan7389]

Great educational video. Keep up the good work. Greetings from Dundalk, Ireland.

[@rchuyck]

I hate intermittent problems, very tough to track down. Much rather have it just fail, then i can fix it. Keep up the excellent videos, always a pleasure to watch

[@BRPFan]

I agree very hard to bet a 8R row-crop tractor! I love the looks of them and they perform very well! There’s lots of 8R tractors around here with all the potato Farms! Wish I could send you some picture of how far they spread the tires, it’s amazing that it works but they have done it for years and it works very well!

[@waynemeyer1682]

Happy Father's Day ZK

[@jimclary7309]

Zeth thank you for sharing your knowledge, always curious of the end results. Keep the action coming, definitely look you up at the next one. Stay safe!!

[@tomn7087]

Enjoyed - great diagnostic skills keep um coming

[@heatherkohlwey8379]

Happy father's day! I hope you have some time off today. Thank you for sharing these interesting videos. Please stay safe, and God bless.

[@ZKMasterTech]

Thank you, I will

[@genechronister7085]

Another great vid! Stay safe and keep the deere's running!

[@farmshoffman8475]

Happy fathers day

[@Wileybird03]

That shop that the 410 was in 👌👌👍. Eat off the floor

[@ZKMasterTech]

Oh yeah!

[@drbill44]

Right before the pliers slipped and the clamp bit your thumb I was thinking “don’t slip and smack a finger”😀

[@lawrencerayborn6258]

Happy Fathers Day, To cut the zip ties. A better tool should be a pair of side cutters. The box cutter will reach out and get you!!! I know 3 stiches later.

[@DahVeeDeeOh]

😬😬😬😬

[@steveanderson4768]

Wow, the one with where it wouldn’t move that sounded honestly like just corroded terminals, and when you pulled it off and put it back on and stuck your probes in honestly, honestly sometimes that could clear it up to where it goes back to making good connections

[@johnpourciau1735]

Glad you like to work on JD stuff. I like working on Red tractors and combines!! Easy to work on than JD!! Just saying buddy!!😁👍

[@rawhideadventures9515]

We owned a B John Deere when I was a kid. Open the petcocks and spin the fly wheel to start it. After that we had either Ford (before New Holland) or Allis Chalmers farming cotton, hay, corn, rice, and soybeans. The corn was for the hogs, chickens, and cows winter feeding.

[@TheVespap200e]

Flush cut (check) Awe that's nice!Like you say Zeth (What animals don't cut their zip ties). FeelsSadMan!

[@ickipoo]

You likely won't be able to measure a resistance on those big cables - instead, measure voltage drop across the cable when it is under load. Remember V=IR - if, for example, you have 100 amps of load on a cable and you are seeing a one volt drop, that is only 10 milliohms of resistance, which you will not be able to measure with the ohms range of a regular multimeter. In the case of that long cable under the cab floor, you could measure the the voltage between the studs at each end while under electrical load (you will likely need to extend your multimeter leads, but that will still give a valid measurement because the impedance of the meter is very high - just don't touch them to the chassis!!) The meter should read fractions of a volt - ideally (much) less than 0.2V or 200mV. Similarly, you can measure the voltage across a stud junction while under load if you can get your probes onto the source and load lugs. This lets you confirm a problem before you disturb the joint. In this case, you would expect a much lower drop - maybe 10s of millivolts, rather than 100s. Similarly, if you suspect a ground fault, measuring voltage across different ground points while under load may help you narrow down the problem. If you have a 12V electrical system, a few hundred millivolts of drop here and there quickly adds up to big problems. 24V will be a little more forgiving.

[@matthewk3859]

fun fact, those terminators have a manufacture date molded to the plastic. it looks like a clock. the numbers in the middle indicate the year, and the arrow points to the month. that goes for any plastic part that has that "clock" on it

[@stevedibiase728]

This is something are we improving ourselves that much could fix my tractor not that many years ago with a crescent wrench screwdriver, vicegrips....oh guess what the 51 Farmall M still living working now I am 75 I know it will outlive me.

[@Wildkat9797]

Brand new valves will measure 15.8ohm too lol. Oil in the plug is my big thing with them, but the enable pressure usually gets sticky and feeds reverse while in forward causing delays or slams. I seen you changed ECU terminator and then changed another (looked like EPC but I normally drag them out from the fuse panel side). Normally when one starts to go, they will all follow afterwards so we just change them all. On the premiums that's kinda pricey for people lol. 6X/7X-010/20/30 are our main work load besides your 30/40/50 series as we're hay and cattle in our territory. Passive on the ECU normally lose throttle control and it falls back to idle from my experience.

[@dougp1856]

Years ago I went to an engine school, one of the guys worked at a coal mine and was working on a machine at the mine and the engineer happen to show up. Tech had to crawl down in the machine to get a line off. He handed the wrench to the engineer. When the next model came out, it had an access cover to get at the lines without having to crawl in the machine. I've always said that then engineers should have to work on what they design. No reason not to have an access cover on the floor.....

[@ickipoo]

Regarding the CAN bus and terminators - at radio frequencies (which high speed CAN data is, but only barely), a pair of wires of a certain gauge, twisted together, are a transmission line with a characteristic impedance of about 120 ohms. Discontinuities in this medium produce reflections (in a similar way that light bends or reflects when entering water) - the wire gauge has to be correct, the twist rate has to be constant, and the wires needs to kept together. At each end, the 120 ohms needs to be maintained and the signal absorbed - hence the 120 ohm terminator resistor (the 120 ohm resistors at each end, in parallel, appear as 60 ohms when measured with the direct current produced by your multimeter). If there is no termination resistor the signal reflects back down the cable, corrupting the signal (a short circuit can also produce reflections rather than completely killing the bus).

[@johnpappas2060]

Bless AWESOME 👏 video. Thanks 😊

[@bobs3727]

Can’t believe the design at the back of the cab, all the electronic cables and connections covered in dirt and mud. no wonder you have issues with corrosion and moisture

[@Kdavis795]

You forgot about the "vise type "clamp tool Great for those really tight spots Get them from Lisle

[@djsisko4712]

Hello thanks for all teacher 🙂😎 i am ready to give you some help😊

[@gavinwateski7686]

That 8R 410 is as meticulous as that shop, holy cow.

[@nodak8213]

Been dealing with the same issue on a 7130 for a couple years....tech has been out multiple times, cost thousands of dollars and still not resolved. Be interested to see if those terminators solved the problem

[@charlesfoleysr6610]

When this happened on my Equinox,I found a bad ground to the TCM. (transmission control module)

[@kevingilbert9695]

I had a blazer that charged fine till the lights were turned on. The voltage drop wound up being a bad ground.

[@JoãoklevesouzaFerreira]

Zk e top

[@macdawg6403]

Nice Vid!

[@farmshoffman8475]

Great awesome video zeth

[@rodhonco5681]

How did the new Battery Cable work with the Lights on? Still get Low Voltage Codes?

[@Smellyoldgoat]

Do you still charge if it doesn't fix it?

[@Ham68229]

I'm still trying to figure out how "John Deere" is the way to go when even a technician is now having to take shortcuts to fix a problem. lol I want absolutely nothing to do with Def, dumbest thing ever and since it's corrosive... yea, stupid gov't juice idea. Great video as always, cheers :)

[@jameschainey2343]

Where do you find all of these wonderful tools or toys 😊😅

[@jaredvdveen]

How do you like the exhaust brake on the service truck?

[@ZKMasterTech]

It’s on all the time

[@fritz2780]

Only the active terminator have 12v power supply

[@joemeathook-rb2nx]

Will these tractors be running in 60 years like the tractors we had 60 years ago that still run I think not!

[@charleshoover8508]

Prepare the parts cannon.

[@BruceBergman]

"animals!!"😋I've gotten snagged on zip ties. Not fun. 15:56

[@frankwrogg2515]

Here I thought these repairs were always warranty, but apparently, they are not. I'm not sure how a farmer covers the cost.

[@ms-mac521]

👍👍👍

[@ericpaul4575]

I thought you said the only thing you hate more than getting coolant on you was death. 😅

[@ZKMasterTech]

Close enough lol

[@francismacomber4650]

So the farmer who owed that 8r 410 couldn’t change that little hose himself? He had to call in a tech at how much an hour to do it?

[@ZKMasterTech]

It was under warranty

[@rosshall641]

that is why the 10 series was superior, a farmer could fix them themselves

[@steveallen648]

"No one flush cut the cable ties, they're animals"...I laughed so hard I cried...Thanks mate!

[@TristenShiner]

Does your service truck have a Jake brake?

[@ZKMasterTech]

It has an exhaust brake yes

[@benlennox7685]

had a issue with a 6920 when you shift it forward it moves forward and if you shift it in reverse guess what, it moves forward so costumer was stuck with only forward movement, checked the codes no transmission codes tested the solenoids tested good tested wiring with controller unplugged tested the shift leaver all checked out so tested controller inputs and that was good outputs not so good faulty controller sending voltage to both solenoids

[@ArturVital-on5wn]

Bacana

[@ellectro124]

Да да! Я тоже каждый день трахаюсь с этими зажимами на шлангах ! Очень не удобно!

[@larrycole4438]

Zk is a tractor 🚜 ; a he, a she , or an it ?