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The reason the NEC was changed was to be certain that ground fault interrupt devices would operate properly from sub-panel circuits and to prevent poor bonding to the neutral wire which can easily create a shock hazzard in damp locations. This separates the requirements for grounding and bonding at sub-panels. Metal pipes or ground rods are bonding to the ground (not the neutral) buss in the sub-panels.

A good internet reference on NEC Article 250.4 is located at "http://www.iaei.org/magazine/03_f/03_f_threechiefs.htm". It describes the installation detailed in the first post and provides step by step details on adding the fourth (ground wire) and why the isolation must be done in existing installations.

pole barn sub panel
Home Improvement
Replies 30 Post by Wen

Yep, The 2000 year model M6800SD was chosen over the 5310 or 5410 for a variety of reasons. My primary use is agriculture and it is physically a very neat package. Small in physical dimensions with big front and rear tires (standard not optioned up as JD does)and comes fully equipped with everything including the adjustable 3 point links, fully sync transmission and column mounted sync shuttle lever. I only had to buy a two options and they were the quick connect kit for the loader and the Kubota Loader.

Not a single complaint. Everything is just where it should be and everything works exactly as I had expected. I first got the impression that Kubota was a light tractor, but with the front end loader, a Gannon 76 inch boxblade and filled tires (40% non toxic antifreeze), it is about 8500# or so. I have the rear wheels set to two adjustments out and the front set as wide as it will go and it fits nicely on my 18 ft 12,000# GVW trailer (with brakes on one axle).

The tractor is very maneuverable, turns sharp, and has tremendous traction (which is what is all about) with ground engaging implements. When you look up the horsepower for the tire size, Kubota hit the nail exactly on the head and it shows in the performance of the tractor. The loader fits perfectly and works just as well. It ran a little over $3000 less than the JD (and I had a dealer willing to cut prices to the bone on JD), but when you are paying $27000 for a tractor and loader, price probably wasn't the primary consideration.

I have answered all posts that came to my e-mail address, so hope I didn't fail to answer your question.

JD5210-JD5310-or-Kubota-M6800
John Deere Tractors
Replies 12 Post by Wen

Forgot to say that I am mowing with 8500# counting the mower. Weight is not the problem, it is the size of the tires to spread that weight out. That is why turfs are so clean on really nice turf. My turf wouldn't know the difference whether I had turfs or Ag's.

Scrubbing Turf with 2910
Mowers Field and Finish
Replies 5 Post by Wen

Don't be too hard on Steve. Send him an e-mail and I am sure he will remove you from the mailings. I find them interesting, although I have already bought a tractor and was thinking about buying another one in about 2030 or so. Hit the delete key and keep trucking. Steve has answered many questions and has an excellent FAQ for new tractor owners that should be required reading.

Carver Equip Spam
Website Operations Howto
Replies 11 Post by Wen

I had to use check chains with my old Massey 245, but the position control for the Kubota does not need or require check chains. The only exception I can think of is if you have a model that does not have position control (just up or down) or the 3 point is really wore out.

Check chains only cost about $30, but I would not use them unless you really need to.

3 point hitches
John Deere Tractors
Replies 12 Post by Wen

I just tilled 7 acres to plant coastal bermuda grass on this past weekend. It took about 14 hours with a 5 ft tiller. The tiller leaves the soil nice and level. A plow will not. Did a good job but broke 14 tines on rocks.

Next time I will probably use the scarfiers on a boxblade to rip the soil first before tilling. That will get the rocks out. Plowing sure makes a big mess to clean up.

The scarfiers just rip the soil without making big clods out of it like a plow does.

Rototiller
Operating and Attachments
Replies 5 Post by Wen

Isn't Propolyene Glycol (pink) antifreeze a more environmentally friendly antifreeze. I noticed that Tractor Supply is now selling it at a comparable price to Ethelene Glycol. It is also sold by camping supply stores and can be dumped with waste where Ethelene Glycol cannot. Would this be any better choice for filling tractor tires?

antifreeze
John Deere Tractors
Replies 11 Post by Wen