Loader CK 35 HST - pressure relief setting... or is this thing just a dog

flatlands · Oct 16, 2013

Hello,

Just purchased a new ck35 hst, doing some testing in the yard with the fel in a loose top soil pile of dirt.

Here is the question with a 35 hp tractor I would expect when approaching a pile and bucket that is 50 % full in low range once the tractor can not move forward anymore it should ? A) spin the tires or B) hear the motor load down then pressure relief should open....... Currently it just stops moving motor Rpm is not dropping due to overload issue.......

Have read a few other posts here with regards to the ck 27/30 utilizing a different RV relief valve.... but nothing on the ck35hst... Is this something the dealer can adjust or is this think just under powered....

just to do a compare had the neighbour bring his Kubota 2920 and do the exact same task....and it wanted to climb the pile....

thanks for you
comments

kiotiken · Oct 16, 2013

I always found the FEL under powered on my CK30 and would do the exact same thing you're describing. I found that it was just technique that I needed to learn. While pushing into the pile, you need to curl and lift simultaneously to get a full bucket. Doing so will start to bog the engine and give you a heaping bucket. If you don't get it quite right, you won't be able to raise the FEL, I often had to back up a little to lift the FEL.

Your friends Kubota or the JD 955 I was used to would go in and spin all 4 wheels no problem. They're light, your CK35 is a lot heavier and has a lot more traction. It should be able to breakout a little better though, I think it's the curved geometry of the loader arms and the size of the bucket they use on them, it puts the cutting edge out just that little bit extra.

k0ua · Oct 16, 2013

Well I have never owned an CK. but my Dk35se will spin all 4 tires on low range and it is heavier than the CK with greater lift capacity and a larger bucket.

kiotiken · Oct 16, 2013

k0ua said:
Well I have never owned an CK. but my Dk35se will spin all 4 tires on low range and it is heavier than the CK with greater lift capacity and a larger bucket.

So will my DK45, but the CK30 wouldn't unless in snow, mud or loose dirt. Using the FEL on my DK45 for the first time was a hallelujah moment.

flatlands · Oct 16, 2013

thanks for the input,

I Would think if the motor was being loaded down it should try to move .... the tractor is not even being worked...just sits there dead in the water....had to be ordered the box blade so I'm waiting to put that on to see what happens if I can push into a some sandy loom how is going to drag a box blade with the shankes down.... So glad I did not go small HP.

IXLR8 · Oct 16, 2013

With my CK30 if I drove into a pile in low range, I would either spin the tires or stall the engine, depending on the rpm at the time. I find myself stalling my DK40 more often than I did the CK. Sometimes I couldn't lift a full pile with my CK, but my CK had a bucket on it from a LK3054, which turned out to be a 9 cuft bucket and CK's come standard with 7 cuft buckets.

dfkrug · Oct 16, 2013

flatlands said:
Have read a few other posts here with regards to the ck 27/30 utilizing a different RV relief valve.... but
nothing on the ck35hst... Is this something the dealer can adjust or is this think just under powered....

Here is a thread on the HST relief valve issue:
http://www.tractorbynet.com/forums/...increase-hydrostatic-transmission-relief.html

The CK35/CT235 does have different HST parts, vs the other equivalent units with smaller engines.

The HST RV issue is totally separate from the loader strength issue, which is controlled only by the
implement pump RV. Of course, lifting with the FEL while driving forward against resistance does
take up limited engine power, but your HST is going to relief before the engine bogs.

I have a 10,000psi gauge now, but I have never tested my HST pressures. Your CK35 has
the higher HST RV spec (4300), vs the others (4000). It is not hard to raise that at bit, but
only if you get a gauge first to test before and after. I would love to see the results if you do.

sd455dan · Oct 16, 2013

flatlands said:
Hello,

Just purchased a new ck35 hst, doing some testing in the yard with the fel in a loose top soil pile of dirt.

Here is the question with a 35 hp tractor I would expect when approaching a pile and bucket that is 50 % full in low range once the tractor can not move forward anymore it should ? A) spin the tires or B) hear the motor load down then pressure relief should open....... Currently it just stops moving motor Rpm is not dropping due to overload issue.......

Have read a few other posts here with regards to the ck 27/30 utilizing a different RV relief valve.... but nothing on the ck35hst... Is this something the dealer can adjust or is this think just under powered....

just to do a compare had the neighbour bring his Kubota 2920 and do the exact same task....and it wanted to climb the pile....

thanks for you
comments

I would call the dealer, don't believe there is any way that tractor should just ( STOP ) and not even load the engine down.

If it was Normal why not install an engine with a whole lot less power- and if normal ,

I can not think of a better argument to make a person select a gear drive instead.

At least it will spin the tires or kill the engine, - either way you get to use ALL the power the engine produces...

This is from a guy that would Love to own a Kioti 55hp,

I think Kiotis are one of the best tractor values going

tcartwri · Oct 16, 2013

I have more than enough power in low to spin against an immovable object. However the loader would not curl and lift a full bucket of loose topsoil when I first got it. Adjusting the pressure relief fixed that.

So no, it's not normal.