3pt/Box Scraper Not Low Enough

[ChrisO83]

Is there a way to adjust my 3pt so my box scraper can go lower to the ground (LX3310 cab)?
Currently it bottoms out at the lowest setting and often times it needs to go lower to contact the ground.
Would adjusting my lifting rod on the lower link to the "B" setting help?
Or would that only affect the height and not depth?
I thought I read that someone else on the OTT site was experiencing a similar issue but I can't find the post.
CO

 

[Motronic]

I'm not fluent in all the new models, but I think your LX3310 should be on the same frame/same basic dimensions as my B2650.

Are you saying this box blade is literally hovering on flat ground, or that you need it lower on certain grades? Picture would help because I'm at a loss on how this can happen. What box blade? Is it maybe a cat 0 instead of a cat 1?

 

[jimh406]

I don’t know how many holes you have for the top link on the tractor side, but if you put it in the top hole, it should go lower.

 

[Motronic]

I don’t know how many holes you have for the top link on the tractor side, but if you put it in the top hole, it should go lower.

Top link should only be dealing with leveling a box blade, not how low the front can drop.

 

[jimh406]

Top link should only be dealing with leveling a box blade, not how low the front can drop.

Why? They have 3 holes for a reason, right? Well, a standard L has 3 holes. I don’t know about an LX.

 

[SDT]

Is there a way to adjust my 3pt so my box scraper can go lower to the ground (LX3310 cab)?
Currently it bottoms out at the lowest setting and often times it needs to go lower to contact the ground.
Would adjusting my lifting rod on the lower link to the "B" setting help?
Or would that only affect the height and not depth?
I thought I read that someone else on the OTT site was experiencing a similar issue but I can't find the post.
CO

Quite common with optional oversized tires but such are not available on cab models.

If you completely remove the (nearly worthless) position control lever stop, the lever will go a bit lower.

Might help.

Yes, repositioning the lift rods to the closer hole will help a bit too.

SDT

 

[Motronic]

Why? They have 3 holes for a reason, right? Well, a standard L has 3 holes. I don’t know about an LX.

Yeah, sorry. I mean "if it's not bound up on the top link" but I guess I'm maybe assuming too much here from a question.

 

[BigG]

There are several things to check. Look in the owner's manual and make sure the tires on the tractor are the correct size. There was a post not to long ago that the dealer put the wrong tires on a tractor. Second check the inflation of the tires. The front tires need to be on the upper side of their limit. At the same time drop the rear tire pressure down to 10 - 12 psi. This will raise the front and lower the rear of the tractor.

Is there a stop on the 3 point lift control lever? Is it preventing the arms from dropping?

If the top link has adjustments on the tractor end move the top link to the bottom hole. Is the top link long enough? Some times the top link that comes on a tractor will need to be replaced with a shorter or in this case a longer top link. Move the lifting rods to the hole nearest to the tractor. This will let the arms drop as low as they will go.

 

[ChrisO83]

There are several things to check. Look in the owner's manual and make sure the tires on the tractor are the correct size. There was a post not to long ago that the dealer put the wrong tires on a tractor. Second check the inflation of the tires. The front tires need to be on the upper side of their limit. At the same time drop the rear tire pressure down to 10 - 12 psi. This will raise the front and lower the rear of the tractor.

Is there a stop on the 3 point lift control lever? Is it preventing the arms from dropping?

If the top link has adjustments on the tractor end move the top link to the bottom hole. Is the top link long enough? Some times the top link that comes on a tractor will need to be replaced with a shorter or in this case a longer top link. Move the lifting rods to the hole nearest to the tractor. This will let the arms drop as low as they will go.

To answer a few of the previous questions.
The scraper, at times, does hover over the ground but mostly when dealing with changes in the topography. There are times when it would be nice to have it go down a few more inches.
The 3pt lever does not a have a stop on it and I have the control lever push to the lowest possible position.
I do have a hydraulic top link which helps and it is set on the top mounting hole on the tractor side.
My tires might be the big factor as they are R14T 15-19.5's. The factory specs show 14-17.5 for the cab version so I'm not sure how the larger wheel came about. I got the tractor used from the dealer and it only had 150 hrs on it so I would guess those tires came with the tractor from the dealer/factory.

I will look at the tire pressures and make adjustments.
And I will likely adjust the top link to the lower setting and move the lifting rods to the closer set of holes on the lower link arms to see how it performs.

Thanks for the help.
CO

 

[Jchonline]

To answer a few of the previous questions.
The scraper, at times, does hover over the ground but mostly when dealing with changes in the topography. There are times when it would be nice to have it go down a few more inches.
The 3pt lever does not a have a stop on it and I have the control lever push to the lowest possible position.
I do have a hydraulic top link which helps and it is set on the top mounting hole on the tractor side.
My tires might be the big factor as they are R14T 15-19.5's. The factory specs show 14-17.5 for the cab version so I'm not sure how the larger wheel came about. I got the tractor used from the dealer and it only had 150 hrs on it so I would guess those tires came with the tractor from the dealer/factory.

I will look at the tire pressures and make adjustments.
And I will likely adjust the top link to the lower setting and move the lifting rods to the closer set of holes on the lower link arms to see how it performs.

Thanks for the help.
CO

This brought another thing to mind, you are a few inches higher for your Center of Gravity than standard on that machine. Be extra careful on side slopes.

 

[Henro]

Well it sounds like your tractor has larger tires than standard, and this could be the root cause, as someone mentioned above (but I looked back and couldn’t find that comment to quote). With only 150 hours on the tractor when you bought it, it sure sounds like it may have been supplied to the original owner with the wrong size tires on the back (as I remember someone mentioning above).

Do you have a welder? The final solution may be to modify the box blade so that it hangs several inches lower than it does now.

I would also take a look at the front tire size and make sure the ratio is correct front to back when using four-wheel-drive.

 

[SDT]

To answer a few of the previous questions.
The scraper, at times, does hover over the ground but mostly when dealing with changes in the topography. There are times when it would be nice to have it go down a few more inches.
The 3pt lever does not a have a stop on it and I have the control lever push to the lowest possible position.
I do have a hydraulic top link which helps and it is set on the top mounting hole on the tractor side.
My tires might be the big factor as they are R14T 15-19.5's. The factory specs show 14-17.5 for the cab version so I'm not sure how the larger wheel came about. I got the tractor used from the dealer and it only had 150 hrs on it so I would guess those tires came with the tractor from the dealer/factory.

I will look at the tire pressures and make adjustments.
And I will likely adjust the top link to the lower setting and move the lifting rods to the closer set of holes on the lower link arms to see how it performs.

Thanks for the help.
CO

The root problem of your issue is the oversized tires which are not supposed to be installed on cab models but cause similar issues on ROPS models as well. A quick hitch, if used, may also contribute to your issue.

ROPS models do indeed have an adjustable stop for the position control lever, and removing it will allow the three point arms to lower a bit. I cannot imagine that cab models do not have such stop. How would one quickly and easily return the lift to a predetermined set position without one.

SDT

 

[Elliott in GA]

FWIW, I have the LX2610 SU with its larger tires (R4s), and I use a LP QH10 quick hitch. When I am smoothing/leveling with my box blade, my position control is set to 5. I am able to quick hitch connect to my box blade (Dirt Dog) with it on the ground (no pallet).

The OP might want to investigate if the 3 Point Hardware on the SU model is different; it might just be a simple swap of a few components.

 

[ChrisO83]

Spoke to my local dealer about my tires and limitations to the 3pt (I don’t have a QH installed). I noticed the specs indicate the 17.5’s are used on the cab version while the 19.5’s are on the ROPS model.

But according to my dealer, the LX cab has the option of 19.5 tires so either one meets Kubota specifications for this model. He did not elaborate about any known issues with the tires on the cab model or why each model has different tires. He pretty much just indicated they met Kubota specs.

I would think Kubota would not ship the tractor if the larger tires had known issues on a cab version. This is the first time, though, this dealer ordered an LX cab with the 19.5’s. and he is curious about any potential issues the larger tires might cause.

I did adjust the lifting rod on the lower link to the “B” position which made a difference that I am satisfied with at this time.

I definitely am paying attention to the stability of the tractor especially with the larger tires as it’s clear tractors are far less stable than the skid steers I am more used to operating.
Thanks for the advise.
C

 

[BigG]

Spoke to my local dealer about my tires and limitations to the 3pt (I don’t have a QH installed). I noticed the specs indicate the 17.5’s are used on the cab version while the 19.5’s are on the ROPS model.

But according to my dealer, the LX cab has the option of 19.5 tires so either one meets Kubota specifications for this model. He did not elaborate about any known issues with the tires on the cab model or why each model has different tires. He pretty much just indicated they met Kubota specs.

I would think Kubota would not ship the tractor if the larger tires had known issues on a cab version. This is the first time, though, this dealer ordered an LX cab with the 19.5’s. and he is curious about any potential issues the larger tires might cause.

I did adjust the lifting rod on the lower link to the “B” position which made a difference that I am satisfied with at this time.

I definitely am paying attention to the stability of the tractor especially with the larger tires as it’s clear tractors are far less stable than the skid steers I am more used to operating.
Thanks for the advise.
C

If you go to the Build a Kubota web page the option for the R14 tires is:

FRONT 23X8.5-12 R14T GOODYEAR SST
REAR 14-17.5 R14T GOODYEAR SST (ABR8791A & ABR8647)

I think I would confirm this with another dealer and then go back to where you bought the tractor and tell him to correct the problem.

As stated earlier the ratio of the tire size of the front to the back must be correct or there can be damage to the drive train when using the 4wd.

 

[SDT]

Spoke to my local dealer about my tires and limitations to the 3pt (I don’t have a QH installed). I noticed the specs indicate the 17.5’s are used on the cab version while the 19.5’s are on the ROPS model.

But according to my dealer, the LX cab has the option of 19.5 tires so either one meets Kubota specifications for this model. He did not elaborate about any known issues with the tires on the cab model or why each model has different tires. He pretty much just indicated they met Kubota specs.

I would think Kubota would not ship the tractor if the larger tires had known issues on a cab version. This is the first time, though, this dealer ordered an LX cab with the 19.5’s. and he is curious about any potential issues the larger tires might cause.

I did adjust the lifting rod on the lower link to the “B” position which made a difference that I am satisfied with at this time.

I definitely am paying attention to the stability of the tractor especially with the larger tires as it’s clear tractors are far less stable than the skid steers I am more used to operating.
Thanks for the advise.
C

Haven't checked the web site lately but, at least initially, the optional, oversized tires were offered for ROPS models only. This is not to say that dealers do not install such on cab models.

Don't know the reason(s) but expect that it has to do with CG and tort attorneys.

SDT