TUFF TORQ Hydrostatic Fluid Change K46 T40 John Deere 

I like you haven’t added music and cartoons to your video. Thanks for straight forward info and no bs.

Just what i was looking for. Removing the axle seems the right thing to do. Thank you!!

Thanks for the video! And at least you left the pulley on there to fall in the oil since you didn't show us kicking the fan with the circlip LOL

Just did this procedure on my L120. Mine would barely move after a short time mowing and forget reverse completely. Well, after draining the old fluid and replacing it with Castrol 5w50, it did make an improvement, but I haven’t completely mowed my 3 acres of grass yet, so the jury is out as to what will happen when it really heats up. It’s definitely better though and I’m happy about that. It was actually much easier than I thought it would be, so I would definitely recommend doing it to anyone who is having issues with their K46 transmission. Sure beats the cost of a replacement unit, or worse yet, having to junk the whole tractor. Thanks to you and all the others that have posted similar videos!

Thanks I a lot, this is exactly what i needed ....! 😄

Thanks for the information! It's possible to access the fill plug with by either removing a rear tire, or removing the battery and tray in the rear and taking off the fan for access from the rear. Using a fluid transfer pump, pump out as much as possible from the fill port, and then pumping or funneling in fresh fluid. Easy peasy. You can removed well over 2 quarts doing this, so over 80% fresh fluid each change. Do this along with an oil change after 5 hours, and then once a year after, and you will never have a problem for double digit years, as fresh fluid is always in the rotation. Amsoil hydrostatic transmission oil was recommended to me because it lasts extremely long and works to -39*C. This is what the manufacturers don't want you to do, so we must do it.

I'm thinking that's the same tranny as on my 2006, 155C, 48" w/ 701hrs. bought new. It has been used to pull TSC grass vac a little, not babied much on the farm but did blow grass/dirt off tranny so it cools better. Still works decent, no leaks but I'll do just as you did shortly. Probably mix of synthetic oil and LUCAS cause that really does extend life and slows leaks. You did an excellent job but I always blow or powerwash first to keep dirt out. Always easier to put fluid into a smaller container and add a little at a time. Great video, Loved it and the humor. Guess I'll look for overhaul video now. Just bought a very nice 2012, Z920A from original homeowner that I do know but still want to use the 155C. Love older J.D.

That would be nice for sure!

Thank you. I wish John Deere included a drain plug and easy to access fill hole in their K46 hydrostatic transmission.

I have the same little yellow funnel!

Cast aluminum housing is very strong and durable

What consists of removing the unit as an assembly like you did leaving the wheels on?

Just did this on a Craftsman. It was easy.

Had transmission drive belt replaced and every since it's been leaking transmission fluid. It seems to be pushing it out of the reservoir when it's running

They could've made a drain plug and a fill plug that you could access without taking it all off.

You should have done the drain plug upgrade while you had it apart.

Freaking Genius

Nice video. How many more hours did you get from this transaxle after the fluid change?

I would avoid getting too much carb cleaner on the blacktop.

So I'm swapping out the plastic transmission on my d105 I'm swapping in the t40 off a parts mower my friend had sitting around we got it fired up and made sure it worked before I bothered taking it off but I want to change the oil in it before putting it on my mower I notice you recommend the 5w50 for both the t40 and k46 but the tuff torq website recommends the 10w30 and now I'm wondering which I should use

QUESTION: Why remove the rear end in the first place- cant you take the lower cover off while still in and remove the fluid and replace the filter that way?We did it with auto transmissions all the time, so lift the rear of the mower up, put a pan under it, take the bolts out and remove the cover- then replace the filter and replace the pan- put fluid in through the vent on top????Thats the way autos are serviced...why NOT?

It is best to split the case to drain and clean. There is an additional magnet on the gear side and a 3" round screen filter. It's not difficult.

At what interval do you suggest doing this service ?

is it not drainplugs under. On my Husqvarna there are two.

How many hours did your transmission have on it?

You young punk! I can't believe I never thought about mounting the wheels back on it so I can flip it around and all easily ....LOL!

You overfilled it. The oil level is supposed to be 22-25mm (7/8") from the top edge.

so my 130 isn't movin rite..longer runs worse gets..whines loudly..won't pull banks any more.. do u think this will help?

lol I love how you pretend you do this for a living !! ROOKIE