John Deere Ztrak Transmission Disaster! Worst one ever! Tuff Torq. Z915, Z920s, Z930s, Z950, Z960s

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This is a continuation of a video I posted last month where I show how to remove your Ztracks transmission. I showed some internal damage it had after 2400 hrs.
In this video I show the worst internal damage we have see on a much newer mower with far less hours on it. This mower is a 2020 Z920 with only 900 hours!
I show some things to look out for and some tips to reinstall the hydro.
Thanks for watching and dont forget to Subscribe! 🍻🇺🇸

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Опубликовано:

26 ноя 2022

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Комментарии : 83

@Mechanical_Mind 2 месяца назад

To find tools, shop equipment, mower parts and more, you can find them at my store. Click this link: www.amazon.com/shop/mechanicalmind I'll get a commission on the sale at no extra cost to you. It's a great way to help the channel and get the items you need.

@sheltermutts4185 Год назад

Thanks! I’ve ordered all the parts and they are on the way. But I wouldn’t have had a chance without your awesome videos. Hope I can buy you dinner! Your friend in Montana

@Mechanical_Mind Год назад

You are very welcome my friend and thank you so much for the generous Super Thanks! Im definitely going to give you a shout out in the next video! If you ever have a question I'll do my best to help.

@sheltermutts4185 Год назад

@Mechanical Mind You are very welcome! Your knowledge and experience are worth far more, but I hope this serves as a small token of my appreciation.

@Ricky-eo5ym Год назад

Always great info and excellent video shots thanks.

@Mechanical_Mind Год назад

Thanks Ricky. Im currently making a video on rebuilding one of these transmissions oit of a Z930M. Hopefully parts will be in this Thursday and I hope to have the video out this weekend. It was loosing power after getting warmed up and would get weaker. Finally a situation where its doesn't need to be fully repalced.

@altonrowell613 Год назад

Thanks for the information and video ☺️

@dziggy3004 Год назад

Thanks for leaving the mistake in! You let us all learn from it!

@Mechanical_Mind Год назад

It real life man! 🤣

@FishFind3000 Год назад

I changed my z920m hydro oils extra early (59 hours on the machine) just to swap the oil for a higher quality full synthetic since I couldn’t find any good info on jd hygard. From what I could find hygard looks to be a semi synthetic. I swapped for schaeffers full synthetic 315 THF since it had the best wear tests and I could buy it in a 2.5gal container over amsoil 5gal bucket. You were right about the machine having a larger capacity mine took about one and a half gallons to refill after doing both hydros the tank and filters. Schaeffers also beat amsoil by 0.01mm on the wear scar test. Also swapped the engine oil even though they say you don’t need to do a break in oil change. I swapped it at 19 hours for amsoil full synthetic small engine oil and a larger wix filter. This better be the last damn mower I ever buy, stuffs just getting to damn expensive these days.

@dhos83 3 месяца назад

Thanks!

@madusmaxamus8670 Год назад

My question is why all the loose sealer in that transmission? That alone could have blocked up the filter causing overheating and lead to failure. the other complaint is why didn't they include clearance for those two mount bolts? It would have been simple to shape the metal so the bolt to clear. Left hand should talk to the right hand in a case like that.

@jdodell3956 Год назад

Thanks for the very informative videos! Do you have a video on installing a rebuild kit on a Ztrak hydrostatic transmission? I had to replace a axel seal on my Z540M and I used your axel seal video for that. I need to install a rebuild kit in a JD MIA12728 I don’t have a clue as to go about it. Tuff Torq does not have any instructional videos for their rebuild kits. Any assistance would be great! Thanks for the great videos and Be Safe!

@Mechanical_Mind Год назад

Hey JD. I dont have a video on removing a Z540s hydro but I did do one recently and its easier than the Z900s. Just make sure its upside down when you open it up so parts dont fall out all over the place. Take photos and videos as you take it apart to help you keep track of how to put it back. Thats what I do any time I work on something Im not familiar with.

@myemail3829 Год назад

Is this a tuff torq 450 transmission. That's what I have now I'm worried it won't last

@tomcook5813 3 месяца назад

Cheap bearing, maybe even counterweight from the makers suppliers?

@ThePhotographyHobbyist Год назад

I have a TZT13 on my Deere Z960M which I assume is the same one you're showing here. I just noticed a seepage (no drips yet, but it's pretty wet) on the right side transmission at the wheel. I assume the axle seal is bad? If that's it, I assume that can be popped out with no issue with simply removing the wheel and hub? I don't see any other leaks. Sure seems like it's coming from around the axle, but for now I just cleaned it off and will check it again the next time I use it and then look again to see if I can confirm that's the source of the seepage.

@Mechanical_Mind Год назад

The worst part about doing a axle seal replacement is getting the old hub off. They are pressed on so tight that the mechanics I work with used to think it it was nearly impossible to remove them and reuse them. They used to always cut them off and charge the customer for a new hub. I made a puller you can see in this video that now allows me to quickly remove and reuse the hub. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-55mqN9McV-w.html. This also saves the customer $150. Even with that puller ( that I had to strengthen up several times) I sometimes have to smack the hub with a hammer while the puller has max pressure on it. Now if you have newer (I think 2021 or newer) the made the hub and shaft all one pc and the hydro will have to be removed and split to change out that axle shaft / hub seal. Which is really really bad. It will be a drastically more costly and time consuming job to do on newer Z900s. Its also a common issue when string/ rope/ twine or wire get wrapped up on the axle shaft it will mess up the seal and cause a leak.

@ThePhotographyHobbyist Год назад

@@Mechanical_Mind Yikes. Thanks for the info. I'll check that video. Mine is a 2016 which I bought new. It's stored inside 24/7 except when in use on my property.

@ThePhotographyHobbyist Год назад

@@Mechanical_Mind forgot to ask…what’s the torque on that 34mm axle nut?

@jimriley2755 Год назад

Couple questions....if one rubber plug you mentioned has gone bad should you go ahead and replace both at the same time? Is there a way to change one if the other hydro is out of the frame? Thanks...great videos!

@Mechanical_Mind Год назад

They both will dry rot and start leaking so I would do them at the same time. It would be extremely difficult to replace them while still mounted in the frame. The top pulley has to be removed to be able to replace the plug. Thanks for watching

@jimriley2755 Год назад

@@Mechanical_Mind Hey bud…thanks…you were right. The other seal was dry rotted also. I almost blew it off but figured I would see how much I learned the first time! I did find a few tricks. The shaft which goes to the lever with the 13M holding it in, I believe the brake, should be tied up to the battery cable in front of the oil tank to keep it out of the way. Also, using a long 9MM box end wrench with a little silicone dabbed on it will hold the slip nut for reinstall on the release lever and gives you the leverage to force it on while holding the shaft down with a screw driver. Thanks for all you help. Second one I got done in couple hours instead of all day! How much would a dealership charge to charge these two seals? I need to make sure all the new DeWalts I purchased are less than the labor!!! LOL Have a great day!

@Mechanical_Mind Год назад

@@jimriley2755 Good to hear it Jim! You saved yourself a good $1200! 1😆. Hey at Lowes they have deal on getting two 20v DeWalt Power Stack batteries for $200 and you get a $200 20v tool for free! I got the DCF911. Thanks for watching and commenting. Glad the video helped. Have a good one 🍻

@harryerhart5978 7 месяцев назад

Tufftorq transaxles are great but you have to change the oil every 250 hrs don't use the cheap oil JD used Amsoil hydrostic 15w50 👍👍👍

@robertmailhos8159 Год назад

Glad the second one is under the warranty otherwise it will cost a lot of money 💸💰 to fix/or replace

@harleyhorman9975 19 дней назад

Hey man, any tips on removing the pulley from the top of one of these? Is there a special puller for this? I’m having trouble getting the pulley off mine. Also can you replace as seal under the pulley without splitting the case? That’s where mine is leaking.

@Mechanical_Mind 19 дней назад

Pullers will often bent the pulley. They way I remove it is by driving two or 3 chisels under the edge of the pulley, every spread out. The chisels just need to be driven between the case and pulley just enough to apply pressure upwards. Then tap the shaft with a hammer. The pulley will pop loose. Loosen the nut and back it off until the top of the nut is flush with the top of the shaft. That will help prevent damaging the shaft thread. Yes that plug can be replaced easily once the pulley is off and no need to split the case. Also I'd replace the shaft seal that is under the pulley. That is also a common source of oil leaks.

@harleyhorman9975 13 дней назад

@@Mechanical_Mind thank you brother I will give it a shot!

@BlueberryStinkFinger62 Год назад

I have the K46 hydro in my 2021 Craftsman T240 tractor there are now 50 different variations of the K46 Hydro it's not one K46 fits all..they are excellent transmissions the housing is Cast Aluminum Cast Aluminum is strong and durable..

@ethics3 Год назад

I am betting your lawn is not large ... Is completely flat and level and you never try to pull anything like an aerator behind you. ( 10 mins caused my Tuff torq to completely overheat and the mower would no longer move forward until the trans cooled ) . I had a 2018 D170 John Deer with the 54 inch deck. If you push the k 46 in anyway , they go south. The internet is chuck full of horror stories about the K 46

@andybub45 Год назад

The K46 is garbage if you have any kind of hill.

@ethics3 Год назад

My k46 in my JD 170 started slowing very noticeably on very light grades at only 75 hours from brand new

@squeaky61 Год назад

Can you do the pulley shaft seal without splitting it in half? Just carefully pry it out? Or what is the trick for that shaft seal? Thank you very much. I’ve done it twice and this video was very helpful!

@Mechanical_Mind Год назад

Yes you can do the pulley shaft seal without splitting it. You will need to remove the hydro from the mower to have enough room. I just use a pick or screw driver to pry the old one out. Also replace that rubber plug that is under the pulley. Those plugs leak from dry rott cracks

@squeaky61 Год назад

Great thank you! The one the pulley covers is why it is coming out. Did the left a few years back. Right is now leaking.

@squeaky61 Год назад

Do you see these leak at the seam much? My left one has a leak that is driving me nuts! I can’t pin point it and think I may have started when I dropped it the first time.

@Mechanical_Mind Год назад

@@squeaky61 Ive personally never seen one leak at the seam. But one time I was having a hard time pin pointing a leak. It ended up being from the o-rings for the parking brake lever. To replace those you must split it open.

@squeaky61 Год назад

Where are you located? If I can’t figure the leak out, could I ship Tranny to you and have you rebuild it? Would rather have an independent work on it than dealer.

@mikeadler434 11 месяцев назад

👍👍

@morejelloplease Год назад

Is it safe to say the tuff torqs in the new deeres aren't as good as the zt3400/4400s?

@Delmarksman Год назад

I was going to ask the same!

@morejelloplease Год назад

@@Delmarksman it looks like they are weaker

@shanepipkin4041 Год назад

this was a nightmare for me to do with no videos or help last year. why do they still use them cheap plastic plugs?

@Mechanical_Mind Год назад

Where have you been Shane? Haven't seen you comment in a while? They have brass on the inside of that rubber plug now. Why are they still using rubber plugs? My quess would be its cheaper

@kennycobble6057 11 месяцев назад

I was thinking about buying a z915 mower for parts with a bad engine. I own a z930 but was wondering if the hydro pumps and all the parts were the same before I do.

@Mechanical_Mind 11 месяцев назад

The hydros should be the same but Id confirm that and the other parts by looking up both machines on Deer.com using their PIN#s. Here is a video I made showing how.ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9JgYcXJhQvM.html The PIN number is located on the roght side on the frame near the engine oil filter

@kennycobble6057 11 месяцев назад

@@Mechanical_Mind you think a 915 minus the deck is worth 1000.00 motor is bad but has 950hrs on the machine?

@Mechanical_Mind 11 месяцев назад

@@kennycobble6057 no deck and a bad engine?? Id say no way. Are you having issues with your hydros?

@kennycobble6057 11 месяцев назад

@@Mechanical_Mind no just wanting to have some parts incase they ever do.

@ebenwaterman5858 7 месяцев назад

Nobody had any idea why that pump exploded? How about Tuff Torq saving money by sourcing cheap materials.

@MichaelRichmond828 2 месяца назад

I need your help! I have a z930A with 700 hours. just completed hydraulic fluid change. I adjusted the both drives to stop turning per your video. I have noticed my left drive has been weak and now with the adjustments, it takes pushing the left lever forward 2 inches before it even starts to engage...any help on possible fix

@Mechanical_Mind 2 месяца назад

How long have you driven it since the oil change? Did you do the adjustments before or after the oil change?

@MichaelRichmond828 2 месяца назад

@@Mechanical_Mind mowed 3 hours with it today and made adjustments after mowing. When I made adjustments and saw the play it took to go forward I parked it. Drove in yard maybe 100 feet and parked it

@MichaelRichmond828 2 месяца назад

@@Mechanical_Mind also reverse is instant. Just forward has the play

@Mechanical_Mind 2 месяца назад

I'd try to readjusting it again. Before you did the adjustments the first time, was it moving forward while in the control arms were in the neutral position?

@MichaelRichmond828 2 месяца назад

@@Mechanical_Mind yes

@msclecarcrzy Год назад

Is this a common problem with the tuff torq hydros?

@Mechanical_Mind Год назад

No its not common. Even with all the commerical mowers we work on its rare to see one with internal damage. Its far more common to see them go 1500 or hours with never having an oil change or water in the oil. They start getting weaker as they get hot. Sometimes just a flush and oil change will solve the loosing power issue. Its also more conmon to see the top pulley slipping in the top shaft. Oil leaks are the most common problem.

@msclecarcrzy Год назад

@@Mechanical_Mind OK just wondering. Mine has the ZT-3400 hydro. It's the Z740R JD. It has been great so far. I'm coming up on a fluid/ filter change soon. Good video very informative 👍

@MJF40 Год назад

@@msclecarcrzyhow many hours ? Did you do the hydro change. I find the set up weird on the 740r

@msclecarcrzy Год назад

@@MJF40 I'm just over 100 hrs and will probably change it sometime this summer

@Delmarksman Год назад

@@msclecarcrzy are you happy with the 3400's. Also what engine do you have? If it's the Kawie 23.5, how's that been as well. I'm researching for a JD ZTR. Looking at the 760R w/ 27hp (kaw) 3400s, and the 920M w/ 23.5 (kaw).but the 920 has these hydros.

@milestate4876 10 месяцев назад

Can that axle shaft be removed without opening the transmission?

@Mechanical_Mind 10 месяцев назад

No. You have to split open the transmission be able to remove the axle shaft

@milestate4876 10 месяцев назад

@@Mechanical_Mind thankyou

@onthelake9554 Год назад

So which bearing failed , that's where the problem started but you didn't show which bearing came apart .

@Mechanical_Mind Год назад

We were not really sure. It looked like a few grenades had gone off inside of it. All I new is it needed a full replacement. There was no rebuilding or repairing that one. To be fair it was an extremely rare situation.

@onthelake9554 Год назад

@@Mechanical_Mind I watched it again and I think I see which one it was , you can see where the bearing that would be just below the belt pulley has spun in the case . Something to listen for I guess .

@philliphall5198 Год назад

You have to be very wealthy to keep these peace of junk running Best to find a old style mower

@sherrischneider2794 Год назад

Really bad design on these hydros. Buy another brand zero turn

@acourtneyification Год назад

Made in China.

@shanepipkin4041 Год назад

much cheaper from tuff torq

@Mechanical_Mind Год назад

Just had a new tuff torque destroy itself after only 12 hours. It was on a John Deere Z570R.

@user-jx3fs2pw2v Год назад

Just received a new Hydro for my z930m although it has the 2 hydraulic ports coming out the front for the cross porting (runs cooler on hill upgrade). So new left hand has cross ports old right hand does not. So I see it as I have 3 options, 1. Just Cap off the 2 ports. 2. add a short hydraulic hose jumper from one port right back into the other port. 3. Remove/ replace old oil pan that does not have these Cross port option. Ordered off ebay see yellow caps on cross ports. www.ebay.com/itm/304110007149?_trkparms=amclksrc%3DITM%26aid%3D1110018%26algo%3DHOMESPLICE.COMPLISTINGS%26ao%3D1%26asc%3D249783%26meid%3D6b44e706886a438b94c337333b3f1385%26pid%3D101111%26rk%3D1%26rkt%3D12%26sd%3D304141218382%26itm%3D304110007149%26pmt%3D1%26noa%3D0%26pg%3D2349624%26algv%3DPromotedCompV5WithHighAdFeeWithKnnRecallV1PostRankerMode1WithRelatedCatV2WithQueryItemRecallV2%26brand%3DTuff%2BTorq&_trksid=p2349624.c101111.m2109&amdata=cksum%3A3041100071496b44e706886a438b94c337333b3f1385%7Cenc%3AAQAIAAABQL3blYeA6vbrisyHgfLndPfDwqsniXow0I%252BvJOALAC2f6jV3jo5Wh5Hrm3tl3jwGinGKY1RfGs7XvMGkb54Z7BAxTN1a8w%252F26BlnMrRygkcnew0SYvbklXKQYwScohIax9F5U%252Fi7U7d7Tvro5qbPUYIdVyaUnbh2yzYKYQJW4%252B77c3xJkd1r9RsCZXX%252BbO4GMQh74%252BE69hzdQRAsxCgOyBSB9gOIx0hpjaAXjEJDM3jbncumaxs9c836whfnIV5lE25BASPQsxAsokMUSr4LvnHaSF2NmKfAB8o0UzT4MbGIRHsQNrbUvI1jTRE95zka9y9QqkbeL%252FIk7evzIiulejONb8xbOLGGqlK8PJ8Uqw88guED2sR8FZffhMikTc1XJKZOBbRnpceXiRTpl73cSGpEqtlOuxL7yd%252B5mFX7tDp3%7Campid%3APL_CLK%7Cclp%3A2349624&epid=4051314140