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Implement Alley Discussion Forum

Re: 3/16 plow JD 620

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01-05-2013 07:04:08

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That is what I was refering to. And the quick hitch will not do what that does. It would just only hold up a top link but not do any good. For bottom link sencing there are one location of pins for the arms but when you go to top link sencing they are loacted lower than the bottom link setting and the mast for the top link works on a piviot that is over the pins for the bottom ling sencing and the piviot ov the mast is what controls the depth for top link use, at least that is the way it was on the M-F 4-14" semi-mounted plow but that tractor and plow are long gone as I am no longer farming as the farm is gone. There was an easy way to set the cross bar on that plow to match the correct wheel tread setting but here in northwest Ohio it was actually too much plow for the 63HP Ford, No way would it have pulled a 16" like other poster said he pulls with a less HP tractor and 50 mile away.

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01-05-2013 17:22:57

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 Re: 3/16 plow JD 620 in reply to Leroy, 01-05-2013 07:04:08  
For a 620/630 or 720/730, you HAVE complete control of DEPTH at ALL times, without the upper link...and YES, a 720 will Stroll with 4x16"...

Those are not puney little Shetland Poneys in a 720 D..

You have NO need to worry about a "Top Link", with the JD Semi-Mount long as the plow is adjusted correctly and the tractor has front weight and good traction.. Ron..

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01-06-2013 12:23:20

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 Re: 3/16 plow JD 620 in reply to BushogPapa, 01-05-2013 17:22:57  
I was looking at a video on Youtube, with a 720 on a F-145 and 4x14" and it sure had all it could handle in 2nd..but he was plowing too deep for a 14" plow and didn't have enough traction, either.. I am beginning to feel a 16" plow doesn't pull very much harder than 14", when plowing 7" deep... Plus, the 16" will not plug nearly as often.. I know..that does not mean I think a JD"B" would pull 2x16"..I KNOW they won't.. but, 3x16" is "Almost" as much plow as 4x14" and they pull a lot easier...


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01-06-2013 07:08:09

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 Re: 3/16 plow JD 620 in reply to BushogPapa, 01-05-2013 17:22:57  
I agree with no need for a top link as I found out the outfit I had worked better if I did not try to use it. Other than that was what I said that a 620-630 in my ground would not pull a 4-16" plow, 3-14" yes and probably a 3-16" but not a 4 bottom. A 720-730 should handle the 4 bottom plow with no problems.

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01-06-2013 12:15:47

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 Re: 3/16 plow JD 620 in reply to Leroy, 01-06-2013 07:08:09  
I agree completely...there ARE soils (and Conditions) that will make all kinds of different loads on a plow... My time at the "Plow Days" was probably not all that typical... I had just re-built this 630 with New Mains and rings and a VERY GOOD Valve Job that NASCAR would envy...along with New 15.5x38", LOADED, 3 wts on the left and 2 on the Rt and 300 on the front.. This was NOT any more than it needed, either..!! BUT, it DID pull it and over 7" deep in established Alfalfa and Jack Wax.. IT was every bit it could muster (900 RPM) in 2nd, at times..!! Sure seemed to shake the very Ground..!! What a HORSE..!!! My 720, with 300 lb on the front and New 15.5x38" and a couple wts on each side walks right along with that F-145" 4x16 (here) in 3rd, 7+" deep...sometimes lifting the front..!! It's not an "R", but holds it's own...!


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