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I provide free plans to build your own bucket forks and a bucket receiver hitch. I have sent out over 100 copies of these copyrighted plans and I have built 6 sets for friends. These are proven plans.<br>
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If you want a set please PM me with your real email address.<br>
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L2800 on the way Need loader fork help
Kubota Tractors
Replies 3 Post by MadRefereee

This reply is long and was orignally written by a Kubota certified mechanic:

The 3 position valve and the 4 position valve, both have what is known as a regenerative circuit built into the bucket dump circuit.

When dumping a loaded bucket (with a good old fashioned loader control valve) the weight of the material in the bucket tends to pull the cylinders down faster than the hyd. Fluid can fill the other side of the bucket cylinders. Therefore, an air pocket will develop in the cylinder causing the bucket to be a little "floppy" unless held against relief for a few seconds at the end of the dump cycle. Which creates an extra step if you want to back-drag, etc.

To solve this problem we now add a regenerative (regen) circuit into the dump function of the loader control valve.

What is "regen"? The dump function of the loader control valve applies hyd. "power" to both sides of the bucket cylinders at the same time. But how the heck is that going to work? Won't the cylinder just lock up and not move? No, because on one side of the cylinder the rod itself takes up space, decreasing the volume of the cylinder, on the other side of the cylinder piston there is, no rod, creating more volume. PSI=pounds per square inch, the more volume the more square inches to apply pounds, get it? O.K. so the back side of the cylinder overcomes the front side of the cyl. due to more volume and at the same time does not allow an air pocket to develop becuase of the added resistence of "hyd. power" to the front side of the cyl. allowing the cylinder to "stay tight" for subsequent operations. And as an added bonus it tends to dump faster due to the higher amount of flow/pressure to perform this operation. (Hence the "fast dump" mode the salesmen love to tell you about) In actuality the "fast dump" mode is just derivative of the regen circuit.

Soooo..... What's the difference between 3-pos. and 4-pos. valves, besides about 35 bucks?

The 3-pos. valve has regen in the dump mode period. The problem with regen is if you want to add, say a snow plow, with power angle running off of the loader control valve, the power angle works off of single acting cylinders. With "hyd. power" being supplied to both sides of the cylinder, you will only be able to angle in one direction and that's it. (back to the whole volume-vs-psi thing again).

The 4-pos. valve has a detented position. When moving the control lever to the right, to dump (or power angle right in the case of the plow) if you choose the first detented position this is the non-regen position and will work just like the good old fashion loader control valve. If you apply a little more pressure on the control lever you will push past the detented position and move into the regen position. Thus, if you have the 4-pos. valve and want to avoid the floppy bucket syndrome you have to push full right to engage regen.

So the bottom line is; both the newer 3-pos. and 4-pos valves have the "fast dump" option. The difference is, do you want to add options to your front loader without having to add an aux valve to you're tractor or not?

4 way vs 3 way loader valve for snow blower
Kubota Tractors
Replies 5 Post by MadRefereee

According to the Kubota price list your dealer is correct. The problem is the front tires, the R4 fronts (ALR8869A) and turf fronts (ALR8895A). The RC72-38 MMM option is not supported with either front tire.

L3430 with Midmount Mower
Kubota Tractors
Replies 5 Post by MadRefereee

If you do an internet search for Komatsu D20 you will get several hits. Your weight will be about 9000 lbs. If you go to the URL link below you will find everything you ever wanted to know about Komatsu dozers.

1983 Kamatsu D-20-A
Other Tractor Brands
Replies 2 Post by MadRefereee

Go to the URL below and scroll to the bottom of the page. You will find complete listing of all Cat I/II/III type dimensions.

3-point geometry
Kubota Tractors
Replies 6 Post by MadRefereee

I have a set of those Northern Tool prints for the dump trailer. Very detailed and probably worth the money if you decide to build it. I am considering building this one or modifying another this winter.<br>
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Be aware that the design is such that the fabrication is not for the beginner. You will need more than just average hobby strength tools to build it.<br>

dump trailer blueprints
Pickup Trucks and Trailers
Replies 4 Post by MadRefereee

I used to own a service station in Manchester NH. Around November 1 the distributor always called and asked how much diesel was left in my 6000 gallon storage tank. He then delivered kerosene to cut with the existing diesel to make pseudo winter blend. All regular deliveries after that were actual winter blend. Mix ratio was 2 parts summer blend to 1 part kero.

I now buy all my off road from Ciardelli's in Milford. Their off road is premium diesel and should be winter blend by now.

Winter Blend Diesel Fuel
Parts and Repair
Replies 9 Post by MadRefereee

The B2410 has the cover plate for the aux hydraulic block, same as the B2710 and B2910. This makes connecting rear remotes much simpler.

How To help
Operating and Attachments
Replies 12 Post by MadRefereee

I think you will find that the kubota price is just for the valves and hoses. The top link and tilt link cylinders and hoses will be priced seperately. I rolled my own on my B2710 using a Prince SV 3-spool valve with CCM top link and TCC side link cylinders. Total cost came to about $900. Best tractor investment I have made.

hydraulic top link
Operating and Attachments
Replies 8 Post by MadRefereee

I live in New Hampshire and have a block heater on my B2710. I always turn it on a couple of hours before going snow blowing. It cost $39.99 at Chappell's in Milford. Took me 15 minutes to install. You do have to have a 17mm allen wrench to remove the block plug.

Engine block heater for BX23 in New England
Kubota Tractors
Replies 7 Post by MadRefereee

They could all be on vacation. I have sent several emails to them and have always got a prompt reply. I do have a phone number but I will not post it on a public forum. Send me an email and I will give it to you.

Hydraulic Side Link
Kubota Tractors
Replies 23 Post by MadRefereee

The B7800 doesn't have a rear hydraulic block. To get rear hydraulics you have to disconnect the loader valve's PB hose from the front block and extended it to your aux spool valve(s). The PB from the aux spool then goes back to the front loader block. The return hose still connects to the tank as it normally would. 2 longer hoses and a union fitting are all that is required. This is the way the Kubota and TCC units are plumbed.

tractor capable of running trencher
Kubota Tractors
Replies 16 Post by MadRefereee

The B7800 has no rear aux hydraulic outlet so your only option is to run another spool valve off the loader's power beyond.

Your best bet for a complete kit is the Terrain Contour Control (TCC) setup from Integration Engineering. Their web site is www.topandtilt.com. Jim McCuan at IE is a great guy and very helpful. I know of at least 2 people who have TCC setups on a B7800 and both love it.

hyd top link
Operating and Attachments
Replies 4 Post by MadRefereee

I question your need to have the valves on or near the loader joystick. When using the top link to adjust an implement you are looking backwards probably turning around to the right. If the valve levers are by the loader, how will you adjust the top link while driving with the left hand and looking backwards? Crossing the right hand over while look back from the right is awkward if not impossible.
I mounted my valves on the fender right next to the ROPS. It works perfect. I can use them turned backwards or looking forward. You might want to rethink your position.

Hydraulic fitting threads
Kubota Tractors
Replies 21 Post by MadRefereee

Carter & Carter Machinery.

ccmachinery.com

I think Mark goes by the alias of "Ironpeddler" on this forum.

Hydraulic top link
Operating and Attachments
Replies 27 Post by MadRefereee

Back in the mid 90's I owned a convenience store with gas pumps. Every fall the distributor would call and ask for the tank readings for the diesel so they could make winter blend from the summer stuff. They would then send a truck with kerosene and mix it with the fuel in the diesel storage tanks. The final ratio was about 2-1 (2 gals diesel and 1 gal kero). This was the winter blend. All deliveries after the mix were then winter blend.

Kerosene or Number 1 fuel oil
Parts and Repair
Replies 16 Post by MadRefereee