Egon
Epic Contributor
Chances are your tractor is operating in a normal manner. ( If it acts properly when working off road you should have no problems ) Just have a little more patience. Might want to check hst oil level?
the engine RPM should bog down if the HST is operating properly, if it don't , then there's a big loss of HP. in the HST you really can't compare the HST transmission to a geared transmission for efficiency.. note: 2 combative members are on my ignore list so I don't have to see their nonsense!..Like mentioned before I have no problem working with the tractor. It just annoys me when going up hills I mean these hills are very steep and long. Unless someone is sitting in my seat at the time of going up hill then they would see what I mean. I don't think it is the tractor, the problem is the hills. I don't go down off my property very often but when I do it just irritates me of how slow it is at climbing. I have lots of patience just not use to HST power compared to gear drive.
You have obviously never run a commercial backhoe, highlift, chipper, paver, Etc.that's what I was thinking too, there is a big loss of horsepower somewhere!.. it makes you wonder how that tractor could do any useful work, if it can't even climb a hill easily!..
there you go, it depends on the brand, and the brands commitment to quality Engineering.. slippage is wasted energy..Depends on the tractor, I climb some pretty big hills with my little Massey with a 500lb weight box and a 5ft oversized bucket with tires loaded with rim guard in high range no problem. I had two NH TC45DA tractors that had a hard time climbing the same hills in high range. Not all hydro's are equal.
If the HST is operating properly and the operator is using it correctly RPM’s remain constant and ground speed varies.
I致e used a CK25 which is the most underpowered machine I致e ever used and it still beats what the op is describing. Either his hills are more like mountain atv trails or there痴 something wrong. Maybe something simple like a parking brake. I致e never found a hill on the road I couldn稚 climb in high range. As far as what痴 a typical roadway grade there痴 some pretty steep hills around my place.
Do you have the throttle set at maximum rpm?
As far as the lever will move, aka wide open throttle.
For maximum performance, HST drives need pressure, flow and cooling. Achieved by running the engine at maximum rated rpm.
I can see having it bog in H but not in M
H is only for low load travel.
I will give you an idea of how high the hills are. One hill is 1 mile long and I am going from flat ground to 1300 feet to the top. 2nd hill is 1/4 of a mile going from flat to about 500 feet and there are a few not so high in between. Now if you can find a hill around your area that is close to the same height and distance then you tell me how your machine performs as I am curious.
that implies the transmission slips. compare that effect to a geared tractor, the transmission don't slip, and just bogs down the engine instead if you're in too high a gear.. automatic transmissions have been designed for decades without slipping but a tiny bit..If the HST is operating properly and the operator is using it correctly RPM’s remain constant and ground speed varies.
that implies the transmission slips. compare that effect to a geared tractor, the transmission don't slip, and just bogs down the engine instead if you're in too high a gear.. automatic transmissions have been designed for decades without slipping but a tiny bit..
The premise of your statement is correct, however, to avoid confusion on another topic, I would like to point out that "variable displacement " pumps are only used on closed center hydraulic systems.I'm not a fan of hydro's but I don't agree with this statement;
all of the hydro's that I have seen or worked on or used are pretty much the same,
it is a variable displacement pump feeding a hydraulic motor, the further the actuating pedal is depressed the more hydraulic fluid volume the pump pushes to the motor it takes horsepower to push that fluid, backing off the hydro pedal is the same as down shifting a transmission, the further the pedal is pushed the higher the effective gear.