New CK30 HST, Low Power?

[cag]

Mine will spin tires too, under certain conditions,but the tractor will bog down if I do loader work on hard surface such as pavement..For me hst needed some getting use too.. I'm very happy with mine..cag

 

[mauistardog]

In low gear and at that rpm (2500) I spin my wheels if I push against something that wont give.
joe

 

[IslandTractor]

Whether the tractor will spin tires or stall when faced with pushing against an immovable object (eg big stump) depends on more than just power or type of gearbox. The weight of the tractor and traction would also be factors. With a heavy tractor and good traction, I can easily see that you might stall before spinning tires. With a light tractor, eg Kubota B7610 or 7800, you might well spin tires. I don't see being able to spin the tires as evidence of anything other than a mismatch between available torque and current traction. You are not moving the stump any better while spinning the tires.

 

[shvl73]

my point is that it will not spin the tires no matter how far/less you depress the pedal or how fast the engine is running, may be this tractor's relief is too low or something

I also wonder about the relief setting.
As a point of reference, my 2810HST is close in weight, with slightly less hp. I have loaded R4's and I usually run it in mid-range at around 2000 rpm's for loader work. It can spin the tires if the pedal is used lightly when pushing into a dirt pile. I've yet to do any loader work with anything more than the boxblade on the 3pt, so less weight for ballast than you've used. I would think that tractor in low range would have more torque than your seeing.

 

[kioti 100]

Just got off of the tractor after being on it all day. It now has 13 hours on it. Thanks for the tips on how to operate the HTS pedal, but I am fully aware of not just slamming into it - I typically "feather" in until I hit the sweet spot for power. Let me re-iterate that I am seeing stalls when hitting nothing more than some fairly compact dirt with half a bucket or less - let alone a rock or tree stump - the soil is sandy loam and not hard clay or anything, very powdery.

As for spinning tires, not that I want to sit and spin but having driven the Kubota L2900 with the Glide Shift - it really helps to get through some stuff when the tires can slip a little at times and catch a little traction to push on through. The Kioti HST just does a pitiful moan and slowly stops. Thats fine if its how its supposed to be but as I said I have no previous 30hp HST experience. Sounds like some have this experience and others do not. For those who do not - do you have any rear weight or does your HST just growl through whatever you throw at it?

 

[Steve_Miller]

I don't see being able to spin the tires as evidence of anything other than a mismatch between available torque and current traction. You are not moving the stump any better while spinning the tires.

You're not moving the stump any better if your not spinning the tires either. How big is the stump? At least with the gear version it will stall or spin, with HST how do I know if its putting the maximum power to the ground?

Steve

 

[IslandTractor]

I am seeing stalls when hitting nothing more than some fairly compact dirt with half a bucket or less - let alone a rock or tree stump - the soil is sandy loam and not hard clay or anything, very powdery.

.....The Kioti HST just does a pitiful moan and slowly stops. .

If the "compact dirt" you are referring to is in previously undisturbed ground then I don't think what you are experiencing is necessarily abnormal. You might not be able to primarily dig more than that espcially if you don't have a toothbar to break up the ground. However, if your "compact dirt" is a pile of dirt then that is clearly abnormal as your tractor should be easily able to fill the bucket before stopping.

Others have mentioned the possibility that your HST relief settings may be off...I would think your dealer could figure that out quickly if he took a test drive.

 

[HODAK]

Can we assume that you are in low range? I use mid once in a while, but find that low range 4wd works great when doing loader work and I can spin if i want to, but that doesn't accomplish much, (other than making a couple of divots that I have to drive over on the next trip). I can fill the bucket and then some - to the point of losing some when I hit a bump in the trail. It appears there are more CK owners that aren't experiencing your problem. Hmmmm............

 

[cag]

To best describe maximum ground power just drop in low at full rpm, this is the best way to judge your power to the ground...cag

 

[kioti 100]

Thanks everyone, I am putting this to rest for myself - so I can get on with enjoying my new tractor and get some work done. I like the tractor and others here have confirmed what I was seeking, that it is normal for an HST to not spin tires all the time. Knowing that I can feel assured that the tractor is "normal". Hopefully as others mentioned it will gain power while breaking in and I will ask my dealer about the relief valve setting.

I love the tractor and have gotten a lot done. The soil I called "fairly compact" would be undisturbed as mentioned by IslandTractor so again I just wanted the assurance that this is to be expected. Obviously there are tradeoffs with the HST and Gear type transmissions, but I have found the HST indispensable in working with the FEL and can't imagine having to grab the column every time I wanted to change direction.

Initially I panicked a bit when the tractor first arrived but after the last 5 or 6 hours on it, it has really gained my respect that it can do what I want.... would be nice though if Kioti would make a super low range for HST for those times you just need a little more.