change oil in hydrostatic transmission

[jamie123harding]

hey everyone
i just got a 1450 cc and i want to change the hydrostatic oil and filter but don,t know very much about hydrostatic transmission. and don't want to fool anything up.???????

[superduty5.9]

There's not much to mess up on a fluid and filter change.
1) Go to Cub IH dealer or elsewhere and get 7 quarts of Premimum Hy-Tran fluid (it usually comes in a 2 gallon (8quart) jug). Get correct filter and gasket for rear cover or use red RTV like I did.

2) Remove cover and drain fluid. Also remove debris or gunk at the bottom of inside housing. Remove filter.
3) Do everything in reverse.
4) Drink a nice cold refreshment cause you're done!

[Methos]

The tech section will have the service manual for you if you need a step by step but as already posted it's pretty easy.

[jamie123harding]

thanks, going to change it the week

[cub123]

Just a hint, before removing the filter be sure to clean off all the junk on it, to get the top I usually loop a rag over the top of the filter and pull back and forth to loosen the dirt, getting back near the sealing area a much as possible, then blow it off with air.

[berks1710]

I just changed the hydro fluid in my 1710. Is there a better way to fill it than to put it in through the dipstick tube? I took me about 2 hours with all the burping. I had a piece of copper tubing stuck down i to let out the air but that didn't help much. The fluid is just too thick. I actually had the filter cross threaded. It seemed to go on normally but leaked. I took the tunnel cover off then i could see it wasn't straight.

I'm glad I did it though, the oil didn't look dirty by it sounds a lot better! I bought her last year she's got 780 hours. Nice machine!

[zippy1]

Originally Posted by berks1710

I just changed the hydro fluid in my 1710. Is there a better way to fill it than to put it in through the dipstick tube? I took me about 2 hours with all the burping. I had a piece of copper tubing stuck down i to let out the air but that didn't help much. The fluid is just too thick. I actually had the filter cross threaded. It seemed to go on normally but leaked. I took the tunnel cover off then i could see it wasn't straight.

I'm glad I did it though, the oil didn't look dirty by it sounds a lot better! I bought her last year she's got 780 hours. Nice machine!

The only other way would be to remove the fender pan and the top cover and dump it in that way.
I use a clear hose that's just big enough to get through the rear cover hole and pour the hytran in slow, that way there isn't any burping. Only takes a short time to fill it.
If you had the filter cross threaded, did you use a new one after, or the same? Didn't mess up the threads?

[R Bedell]

Is there a better way to fill it than to put it in through the dipstick tube

Two suggestions..

(A) Insert a small piece of plastic tubing (1/8" to 1/4: Dia) into the filler tube. Pour the hydro fluid out side of the plastic tube and into the filler tube. The plastic tubing serves as a air release.

(B) Drill and tap a hole in the rear cover above the normal fill level. I used a 7/16" Fine Threaded Flange bolt with a matching Rubber Washer to plug this hole. Remove the bolt to fill, once filled, install the bolt into the rear cover and away you go. This bolt serves as a air release also.

[cmatthew]

put yur jug of fluid in front of a heater for a while. flows a little quicker when its warmed up.

[nikster]

Originally Posted by cmatthew

put yur jug of fluid in front of a heater for a while. flows a little quicker when its warmed up.

Another option.
I used a bucket of HOT water, immersed 4 quarts & then 3, flowed like water.

NIK,