8' pull-type disk behind L5460, possible?

[Tx Jim]

Some of you guys read too much and operate tractors too little.

At the ripe old age of 76 after growing up on a farm & began plowing at 9 yrs of age then being employed by an equipment dealer for 21 ys delivering/demonstrating plows then custom farming since '87 I think I'll qualify as having more experience than the average member of a equipment discussion forum. Weight per disk blade,spacing of blades,type of soil,angle of disk shafts & # of trips over the same field will all have a bearing on HP & traction required to pull said implement. OP tractor weight is substantially more than what Tractordata shows. Does the extra weight of a frt end loader help or hinder traction when pulling a "towed disk harrow"? My Kubota M7040/cast rear wheels,liquid ballast in rear tires with LA1153 loader/bale spear only weighs 8800 on a public scale. Maximum width towed disk harrow recommended by Kubota for my M7040 is 10ft.

 

[SDT]

Some of you guys read too much and operate tractors too little.

I'm not one of those.

SDT

 

[SDT]

You gotta think positive with completing the task as the goal.



View attachment 687797

That's just scratching the surface.

My VERY good 52 8N with 1,100 OEM hours and a Sherman combination transmission would not pull that disc in plowed ground (unless it was angled for transport) but would have little trouble in the conditions pictured.

SDT

 

[SDT]

Pulled an 8' tandem disc with a Ford 8N thru plowed ground.

If I had a 55HP tractor that wouldn't pull an 8' disc I'd look hard at selling it....

The L5460 is far from a 55 HP tractor.

Rather, 46.5 on the PTO and with HST transmission and R4 tires, probably less than 35 on the drawbar.

SDT

 

[ovrszd]

That's just scratching the surface.

My VERY good 52 8N with 1,100 OEM hours and a Sherman combination transmission would not pull that disc in plowed ground (unless it was angled for transport) but would have little trouble in the conditions pictured.

SDT

Then there's something drastically wrong with your 8N. As a kid I pulled that disc with Dad's 8N over many, many, many acres. Almost always on plowed ground.

 

[ovrszd]

The L5460 is far from a 55 HP tractor.

Rather, 46.5 on the PTO and with HST transmission and R4 tires, probably less than 35 on the drawbar.

SDT

Regardless of HP, if it won't pull that disc it needs sold. See above post concerning your 8N.

 

[LD1]

Regardless of HP, if it won't pull that disc it needs sold. See above post concerning your 8N.

This thread is a good example of what happens when you try and mix city people who buy a tractor with people who grew up around them.

Always an excuse for limitations....rather than real world experience.

 

[jjp8182]

For what it's worth the Kubota manual for the Grand L series lists the max width for pull-type disc harrows for the 5060, 5460, and 6060 as shown as 84 inches in it's implementation limit table ....a table that also has the statement: "A Implement size may vary depending on soil operating conditions."

In my experience with my smaller Grand L tractor Kubota seems to be rather conservative in their implementation "limitations" (at least when it comes to operating on flat ground at low altitudes) .... For example: the manual "limit" for the L3560 is listed as 72 inches ....and the disc I mentioned in an earlier post is listed as being 82" working width by the manufacturer. Something else to consider is that at least one pull-type disc manufacturer lists their 8' discs as requiring a min tractor size of 35HP (which I'd assume is not meant to include sub-compacts or light compacts ...of which the Grand L series is neither) - likewise Land Pride (owned by Kubota) lists the min HP for the DH35 series (smallest being 10ft wide) as being 45hp...

So really the only way to know "for sure" will to be to put the disc behind the tractor and adjust (as needed) to get the performance needed/desire (which may vary depending on soil type and conditions a both "too" wet and "too" dry cause problems for tillage).

In fact depending on just how sandy the soil is using the disc for primary tillage may just work better than secondary tillage .....just thinking back to growing up in central MN (St. Cloud/St. Augusta area) and know firsthand what sort of sand some areas there can have -- much of my parent's place was what we called sugar sand since it was about the consistency of granulated sugar (or finer). Makes much of the "beach sand" I've seen since seem very coarse. So if that's what's being worked any sod/vegetation on the surface will definitely help get positive traction for the primary passes ...may need to do shallower successive passes (if any) if that's the type of ground that will be worked (the additional organic content being added/worked in will likely help in the long term with that as well).

..again just my :2cents:

 

[workinonit]

I'm not going to interject myself into the HP argument because I agree the only real way to know is to do it but what I will say is that I think your biggest limitation will be the R4 tires. Those tires are just not designed to pull implements IMHO. But hey, I've never really run them doing real farm work so I don't really know for sure.

 

[ovrszd]

This thread is a good example of what happens when you try and mix city people who buy a tractor with people who grew up around them.

Always an excuse for limitations....rather than real world experience.

I agree.

 

[SDT]

Then there's something drastically wrong with your 8N. As a kid I pulled that disc with Dad's 8N over many, many, many acres. Almost always on plowed ground.

Nothing wrong with it but the tires are not loaded.

SDT

 

[SDT]

This thread is a good example of what happens when you try and mix city people who buy a tractor with people who grew up around them.

Always an excuse for limitations....rather than real world experience.

Agreed.

SDT

 

[ovrszd]

Nothing wrong with it but the tires are not loaded.

SDT

That would explain a lot. Never had a tractor on the farm without loaded tires. Even my little JD in the pic has loaded rears.

 

[workinonit]

What I can tell you is that no matter what type of tire you run if you pull a 10 foot disc and a 7 point chisel plow when it hasn't dried out enough, you can bog down and bottom your tractor out.....twice in one day.

 

[ovrszd]

What I can tell you is that no matter what type of tire you run if you pull a 10 foot disc and a 7 point chisel plow when it hasn't dried out enough, you can bog down and bottom your tractor out.....twice in one day.

I rarely learn the first time either......

 

[oosik]

My neighbor has a Brown - pull behind - disk harrow. It great because I can hook up the hydraulics from my top link - raise the unit up on its wheels and motor down the road to my place. It cuts a 9' swath and weighs around 1400#. I've used it a couple times. Just gotta wait until the ground is dry. The M6040 pulls it easily. If I have to go into 4WD - LOOK OUT. I may have hit a wet spot and need to get the heck out of that immediate area.

 

[chevyman29]

I doubt seriously it will pull it with any authority. My 4060 grand L struggles pulling a 7 foot land plane up any kinda grade in M
.
I am curious to see how it acts with my 6 foot HD tuffline . I'm not optimistic.

40 or 50 horsepower in a hydro tractor is nothing even close to a gear drive.

No need for some people to act like his BIG 50 HORSE tractor is gonna walk off with a 8 foot disk.
In reality he's equal to about a 25 horse in pulling power.

 

[RickB]

I doubt seriously it will pull it with any authority. My 4060 grand L struggles pulling a 7 foot land plane up any kinda grade in M
.
I am curious to see how it acts with my 6 foot HD tuffline . I'm not optimistic.

40 or 50 horsepower in a hydro tractor is nothing even close to a gear drive.

No need for some people to act like his BIG 50 HORSE tractor is gonna walk off with a 8 foot disk.
In reality he's equal to about a 25 horse in pulling power.

That's an interesting comment, one I'll take at face value. Then I looked up the Nebraska test for the old Cockshutt 30 of my youth that hauled an 8' IH model 37 transport disc all over 50+ acres of corn ground for years. 27 drawbar hp.

 

[chevyman29]

Well take it for whatever value you want. As soon as it gets dry I'll hook my disk up and give it a try and post up some videos on YT so anybody that's interested can see for themselves.
From my experience it a big difference in hydro and gear drive when it comes to pulling power.

Will it pull it ? I'm sure it will . Will it pull it good enough to be worth while ? I doubt it.
I also doubt the tractor will hold up pulling a 8ft disk for very long.

 

[RickB]

Hey you threw the number out there, I didn't. A 50 horse MFD tractor should be capable of putting 50% of that power on the ground through any transmission worth building. Remember to link us to your videos.