Same old Hydro questions

Anonymous-0

Well-known Member
I know this has been hashed around time and again and I can't figure out how to archive it. The local tractor jockey picked up a 656 D from an old local feed mill. It has around 4200 hours and is straight but weathered. Over all it's a dry tractor and the Trans fluid looks and smells good. Saturday I think I'm going to try to get it started and moving. This will be used for a chore tractor - hi-lift, raking, planting etc. Nothing heavy, my 966 does the grunt work. We had a tractor just like this years ago and I am aware of their limitations. Still gotta love those Hydros. Without giving it a good, hot work out all day, is there anyway or are there any tricks I can do just to get a feel that the hydro is going to be some what reliable? For $2800 if it runs and drives the temptation is there for a great project tractor. Any sound advise will be appreciated. Thanks.
 
Checking hydro

With the tractor in low range, step on the foot-n-inch pedal (where the clutch would be if it was a gear drive), move the hydro lever into the blue area of quadrant, half throttle or so, hold the brakes, and let out the f-n-I pedal. A good hydro will overpower the brakes. In high range, same procedure, it should stall the engine. If the hydro starts whining instead of moving, the hydro has a problem.


you can get the hyd oil warmed up some, by putting the hi-lo lever in neutral and pushing the hydro lever up about halfway, before you test the hydro. i screwed up on a 186 hydro one time by trying it when the oil was stone cold. seemed ok but it wasn't.

for $2800, i'd be tempted to take a chance, unless there is a major problem like worn out tires. i had the hydro on my 826 rebuilt at hoober's for $2300, plus i split the tractor and put it back together. i didn't think that was too bad for a new hydro. you may not even need to do that much.

good luck.
 
Thanks Bill. The $2300 price tag is less than the $4000 bill I was expecting. It must be taking only the unit in for repair and not the entire tractor. Spliting and removing is not a problem and if needed, will be the way to go. Thanks again.
 


Out here for that price I'd jump first and worry about repairs later...LOL. A running 656 D here is a $5500 tractor, hydro add 1500 to 2k. A 666 hydro brought $11,500 at auction here last summer. Good luck.

Rick
 

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