Hydrostatic Transmissions explained

   / Hydrostatic Transmissions explained #2  
For the visual learners out there:



Keep in mind a conventional tractor does not have two hydraulic motors like this fork truck.
It only has one hydraulic motor that drives a conventional 2 or 3 speed gear box (range selector) and the usual differential components. However for you power trac guys, I believe there is a hydraulic motor on each wheel.

So from the hydraulic motor on backward to the final drives, the hydrostatic equipped tractor is pretty much the same as a conventional gear tractor.
 
   / Hydrostatic Transmissions explained #3  
Thanks. Good reading.

I started operating hydrostatic machines when I was 18. Don't laugh, it was a Wheel Horse tractor converted into a hydraulically articulated airplane mover with an oversized sun strand pump and no front axle. It was cantilevered with a rear steel fork for picking up nose wheels with a hydraulic cylinder operated lift. You sat backwards on the hood with the steering wheel between your knees. Anywho, I had to work on it once in a while.

Then around 1989 we bought that late 70's IH2500b tractor loader. It was HST. So I purchased all the manuals for that and got a pretty good understanding of how it worked.

Now we have the PT425. It's a beautifully simple machine. Just beautifully simple. And that's what I like about it. Almost as simple as my '70 Nova with the 230 L6 and three on the tree! :thumbsup:
 
   / Hydrostatic Transmissions explained #4  
Nice , Makes sense that my owner manual says change the HST filter every 200 hours If the HYD oil stays in the loop:)
 

Tractor & Equipment Auctions

2015 JOHN DEERE 624K WHEEL LOADER (A51406)
2015 JOHN DEERE...
2009 Ford F-250 Ext. Cab Knapheide Service Truck (A50323)
2009 Ford F-250...
1986 VIM TACK TANKER TRAILER (A50854)
1986 VIM TACK...
2019 Caterpillar 815K Articulated Compactor (A49461)
2019 Caterpillar...
2016 John Deere 35G Mini Excavator (A49461)
2016 John Deere...
2023 CATERPILLAR 299D3XE SKID STEER (A51242)
2023 CATERPILLAR...
 
Top