[TowerTalk] Using riding mower to run radials (2nd Try)

[Wendell Wyly - W5FL]

Nope, most large tractors do not have down force on the 3 point, but a few
third world tractors do.  I have a 68 HP Kubota.  Only the weight of the
implement provides the down force.  Same on Ford, John Deere, Massey, etc.
My Gannon Box Blade weighs over 1200 pounds and is 78 inches wide.  It
provides a lot of down force, but it is strictly from gravity.  It is very
complex and expensive to provide down force (other than gravity) to a post
hole digger on a tractor.

The machine that the local utility used to lay my phone line was a vibrating
plow used on a large tractor. They buried the line 24 inches deep in about 2
hours.  The phone line is a little over 3000 feet from the road to the
house.  These are wonderful machines, but they are extremely large for use
around a home.

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com]On Behalf Of Jim Lux
Sent: Monday, April 12, 2004 1:04 PM
To: Wendell Wyly - W5FL; N8DCJ at YAHOO.COM; towertalk at contesting.com
Subject: RE: [TowerTalk] Using riding mower to run radials (2nd Try)

At 12:05 PM 4/12/2004 -0500, Wendell Wyly - W5FL wrote:
>Unfortunately, almost ALL 3 point hitches DO NOT apply any downward
>pressure - only upward pressure.  This is true on nearly all tractors.
>
>-----

On riding mowers perhaps, but on the run of the mill Ford and Kubota
tractors I've used, you can exert substantial downforce. You need some
downforce, or how are you going to do plowing and grading type operations.
I've managed to lift the back wheels off the ground with a Gannon on the
hitch..  The three point hitches I've used also have the ability to move
the two top points relative to each other, which can be used to, for
example, set the blade angle.  Soemtimes it's hydraulic, sometimes, it's a
threaded rod/rigid turnbuckle kind of arrangement.

Jim, W6RMK

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