Mahindra 1526 Vs Kubota L2501

[Luke'sScreenName]

With that said, I do have to question the 2300 pound lift capacity of the Westendorf 2" pistons at 2200 PSI. The rated lift of my Kubota B9200, for example, with 1.770" (45mm) pistons at 1930 PSI is 838 pounds. Even bumping the Kubota to 2200 PSI would only bring it up to 955 pounds lift capacity.
So figuring 2300 pounds divided by 955 pounds comes to 2.41 ratio where difference in piston area between the two is only 1.28 ratio. I suspect that Westendorf is stating their lift capacity of 2300 pounds as being at ground level which I would call breakout force.
Any thoughts on that?

Edited spelling.

They should be able to get you a height/capacity curve for the loader at a given PSI. Changing the pressure should just shift the curve left or right not change the shape. I bet they will even generate one for you (at the pins) for several pressures. :confused3:

I do know that changing cylinder size alters force considerably more than is intuitive to my mind. Like a lot more...

 

[npalen]

Doubling the piston diameter quadruples the force. The formula is pi (3.14) times the radius squared.

45mm (1.77") piston diameter is .88 radius and then squared is .78 times 3.14 is 2.46 sq. in. area

50.8mm (2.00") piston diameter is 1.00" radius and then squared is still 1.00 times 3.14 is 3.14 sq. in. area (28% greater force)

 

[mike69440]

You can get the shims from Kubota or you can use a #10 stainless steel washer on both the models I had. It's easy to do but you need to be able to test your hydraulic pressure.

The hydraulic pressure will be listed in your manual. You can set it at that pressure to play it safe. Or you can set it 5% above and live on the edge.

Do a search on TBN and you can't find how to adjust the pressure relief valve. You can also find how to build a rig to test your hydraulic pressure.

If 5% is living life on the edge, that's a real boring life.

 

[mike69440]

As a mechanical engineer for my entire career of over 40 years the factor of safety on a tractor axle I expect ot e at least 3, as bumps and shocks must be taken into account. so just don't get stupid with a lot of weight on the front axle and stop worrying.

 

[DK35vince]

My loader (Kioti DK 35 tractor with a KL 1450 loader) calls for a max pressure of 2300 PSI.
I set the pressure at 2450 PSI and changed the original 1.75"bucket roll back cylinders to 2" cylinders.
Been running it that way for 10 or 15 years now with no issues.

 

[Luke'sScreenName]

If 5% is living life on the edge, that's a real boring life.

Lol!
I was hoping you would chime in. Did you drop your pressure any when you upsized your cylinders? Kidding, I bet I know the answer to that!

 

[cphilip]

Sounds to me like someone needs to throw a few more similar tractors into the mix of consideration. The Kioti 2610 for example... Im biased but Im sold on one

 

[mike69440]

Lol!
I was hoping you would chime in. Did you drop your pressure any when you upsized your cylinders? Kidding, I bet I know the answer to that!

In fact i did lower the pressure. I now run at just under 3000 PSI which is at the high end of spec. I was running +3,200 Psi on the stock size cylinders, but did not realize that just turning up the relief another 1/8 to 1/6 of a turn after I had initially set pressure with gauges would jump the pressure so much. In any case I now have 19% more area on the lift cylinders and 26% on the bucket curl and the hydraulic pump and motor are not straining much with the pressure set to spec. TLB's run higher pressures than Ag tractors.
.
With inner and outer wheel weights and some extra metal elsewhere, the now +8,000 lb L39 is just right loader wise, but could use more power. As the L39 has lots of hydraulic flow compared to similar size tractors, the hydraulics did not slow noticeably.

 

[mike69440]

My loader (Kioti DK 35 tractor with a KL 1450 loader) calls for a max pressure of 2300 PSI.
I set the pressure at 2450 PSI and changed the original 1.75"bucket roll back cylinders to 2" cylinders.
Been running it that way for 10 or 15 years now with no issues.

You did the same type of mods i did to my Max28. I went from 35 mm to 40 mm on the bucket curl cylinders and upped the system pressure to 2250 -2300 Max Psi.

I'm glad i added 750 Lbs ballast to 3 Pt hitch.

 

[crashz]

I'll just throw something out there as I have a 2501 and have done similar things that have been discussed (a few pages ago).

Just recently I attempted to pull a half pallet of wood pellets off of my dump truck. The weight would be 1000 lbs of pellets, 50 lbs for the pallet(?) and 250 for the Bradco forks. I'm guessing on the pallet and forks, but must be pretty close. That's 1300 lbs of weight. No modifications to loader or pressure relief. Loaded tires and ~100 lbs of ballast (which was not nearly enough). The tractor curled the weigh up off of the truck and I was able to back out and lower the load to a reasonable carry height. It would lift the load about 18 inches off of the ground, but at that height, it would not curl it back. In my opinion, I was over capacity, but lucky enough not to break anything.

For the future, I'd consider that max load to be about 1000 lbs total or 750 lbs on the forks. I wish it would lift more, but not really interested in pushing that envelope.

As far as bush-hog work, the 2501 will run a 5ft cutter pretty well as long as you go reasonably slow in heavy grass. i run a 6 ft finish mower on mine as well with no issues and it barely notices. It never seems to run out of power and I rarely push it beyond the rated PTO speed.