CK30 Front end loader not lifting heavy loads

[DOCatRU]

Hi folks:

My 2008 CK 30 with 760 hours is having trouble lifting a pallet of firewood. This is a task that it used to do routinely with ease. The loader can still lift two 12-14 foot logs (must weigh 200-300 lbs total). It can also raise and lower through the complete range of motion.

A few weeks back, the joy stick would not move forward or back until the tractor warmed up. While I pushed hard on the stick I never forced it to move. Once the tractor warmed up, the joy stick would move ok.

Today, I started the tractor (25 degrees outside). The joy stick move fine. I moved a couple of large oak and maple logs. Cut and split the logs onto the new pallet. When I tried to lift the pallet it the side to side joy stick motion tilted the pallet, but the front and back would not lift it.

I called the nearest Kioti dealership (one hour away). They were helpful and suggested that the problem might be that this model had plastic ball tips inside the joy stick may have gotten loose. A rebuild kit with new all metal balls and triangular fixture is available for $65.

I can understand how this might be the problem, but am puzzled how if the ball tip was loose of broken that the loader could still lift a couple of hundred pounds, but not lift the 800 or so pounds of a pallet load.

Can anyone confirm the diagnosis or suggest another solution to this problem? You folks have always been great in helping me solve maintenance/repair problems and I greatly appreciate the help.

regards,

DOC

 

[justman777]

Does the engine bog down when it stops lifting? I'm not a hydraulic expert, but I think as long as the valve was open, it should continue to lift until the pressure exceeds the bypass pressure relief valve setting.

Also, I seem to recall someone saying water had got down in their loader control valve assembly and it had froze it up. You could try heating the valve assembly with a hair dryer or heat gun and see if that does anything for you.

 

[4570Man]

Does it still lift at the usual speed? I’m thinking that problem would be pretty easy to diagnose by feel. I don’t know exactly how the relief valve works on that machine but I’m guessing its loosed up and not holding the proper pressure.

 

[lakngulf]

I had a similar situation several years back. Turned out my third valve was stuck and draining all the juice. I moved it and all was fine
Now I still do have my problem of the 3PT system jumping when tractor fresh start and 3PT raised.
Found that if I leave the 3pt raised when storing tractor then does not happen.

Ideas?

 

[justman777]

I had a similar situation several years back. Turned out my third valve was stuck and draining all the juice. I moved it and all was fine
Now I still do have my problem of the 3PT system jumping when tractor fresh start and 3PT raised.
Found that if I leave the 3pt raised when storing tractor then does not happen.

Ideas?

Three point jumping is usually associated with an issue with the MLS, and may be able to solve it by adjusting it a bit. There are a few Youtube videos out there of folks adjusting the MLS.

You may want to start your own thread to capture responses from others.

 

[jabelding]

Plastic or metal balls will not make a difference on lifting capacity. What you need to do is check the hydraulic pressure on your loader. It should be around 2300psi when deadheaded on a gauge do a forum search and you should be able to find some pictures of someone doing it. basically just remove one of the hyd quick disconnects on the loader put a gauge on a mating qd and install it then run the leaver that direction. If it is low it can be adjusted with the pressure relief valve on the loader valve.

 

[DOCatRU]

Plastic or metal balls will not make a difference on lifting capacity. What you need to do is check the hydraulic pressure on your loader. It should be around 2300psi when deadheaded on a gauge do a forum search and you should be able to find some pictures of someone doing it. basically just remove one of the hyd quick disconnects on the loader put a gauge on a mating qd and install it then run the leaver that direction. If it is low it can be adjusted with the pressure relief valve on the loader valve.

Thank you for the suggestion of checking the pressure. I'll do that. I have to admit, the Kioti dealer's suggestion didn't make sense since the tractor could lift 200-300 lb, but not the normal 800 lb (or so) pallet.

I'll search the forum for checking the hydraulic pressure.

DOC

 

[Billrog]

Are you certain the auxiliary leaver isn't engaged ?

 

[DOCatRU]

Are you certain the auxiliary leaver isn't engaged ?

Billrog" I'm not certain what you mean about the auxiliary lever being engaged?

DOC

 

[DOCatRU]

Hi folks:

I am looking to buy a hydraulic test kit to test the PSI of the loader line.

Amazon.com: Measureman Portable Excavator Hydraulic Pressure Test Coupling Kit, Including 6 Test Couplings, 3 Pressure Gauges, 2 Test Hoses for Excavator Construction Machinery: Industrial & Scientific

Does anyone know the size of the quick attach fitting on the FEL? I don't want to buy a set and not have the correct fitting.

Thanks,

DOC