Grand L loader issues?? or operation

[texasjohn]

I recommend demonstrating to the dealer the maneuver which it will not perform .

I have, many times , gotten unstuck by curling toothbar straight down into muck, lifting front wheels off ground and curling up to push tractor toward rear . I do think i was on hst reverse pedal while curling. Glad you are getting pressure checked.

 

[TripleR]

My son and I mucked out a pond last year about this time with our M8540 and L5030 and I thought he would be pulling me out of the mud all of the time, but like texasjohn, I just used my FEL and curl to push me back out while using the HST.

 

[Grandad4]

"Neutral" pedal on an HST tractor is not the same as neutral on an MF35, which is freewheeling. As others have said, why make the bucket fight to pull you out and the locked drivetrain of the hydraulic drive at the same time? Get the wheels going in the direction you want to move to at least help a little bit. That said, it still sounds like the FEL curl is not up to par on that tractor.

 

[mike69440]

I would bet your pressure is low. I had a L3130 with the 723 loader and it was a real disappointment. I checked the pressure and it was close to 1000psi low. Same deal with my L5740. Tried my new loader and was disappointed again. Checked the pressure and it was 1000# low. Boosted it to 2500# and got a new loader. Some day I will bump it another 200# but it is real good now.
Changing the pressure is not a tough job but testing the pressure is a must first.

2700 PSI is getting a bit much, as it will drag down the motor and is tough on the pump seals over time. I run a hare over 2500 PSI with an L39. Still weak in the curl.

 

[mike69440]

My son and I mucked out a pond last year about this time with our M8540 and L5030 and I thought he would be pulling me out of the mud all of the time, but like texasjohn, I just used my FEL and curl to push me back out while using the HST.

That is why I love the back hoe on the L39. I've done stuff to move and unstuck the tractor that is not in the owner manual.

 

[J_J]

bucktaker,

Maybe you have a curl cyl that is leaking, diminishing your capacity to push you backward.

You might make up a set of gages like these and test the hyd pressure .

The gage is a 3000 psi liquid filled gage.

If you are using the regen part of the curl circuit, it has little power.

 

[kuboman]

2700 PSI is getting a bit much, as it will drag down the motor and is tough on the pump seals over time. I run a hare over 2500 PSI with an L39. Still weak in the curl.

Yes they are a bit weak. I blame it on the parallel linkage for the bucket. To get the range of movement that these buckets have requires it to loose some mechanical advantage. My little b2620 I had with a direct pin bucket had better curl power than my la854 for the size of loader but I still like the extended motion of the 854 curl function. Kubota did not size the cylinders for the diminished mechanical advantage. At least that is how I see it.:drool:

 

[texasjohn]

It seems to me that 2900 lbs is max spec for 5030 and dealer mechanic set at 3100lbs because that was what the washer he installed provided . Only did it because I impressed him with my safery consciousness using hydraulics .

 

[bucktaker]

I have called the dealer and talked with the service dept they will check the pressure/adjust the pressure under warranty He was real adament about rpm's I told him I had tried between 1800-2500 with no difference.

My comment about getting unstuck is not something I have experienced with the L5740 yet but it seems that it wouldnt work as I have already hit max with curl before I get stuck. Raining alot here so gotta wait so I can get the trailer out of the swamp to take it in hope to do it this week.
What is the expected pressure and the max pressure?

 

[TripleR]

That is why I love the back hoe on the L39. I've done stuff to move and unstuck the tractor that is not in the owner manual.

I know what you mean, my brother has an old 2WD Case backhoe and he has never gotten into anything he couldn't get out of with the FEL and backhoe. I am pretty sure a lot of people would cringe though.:laughing:

Sure wish we could afford something like a L39 or L59, we just rent an excavator or bh now.