Land Plane diving in and overloading

/ Land Plane diving in and overloading #1  

walnutman

Gold Member
Joined
Aug 14, 2009
Messages
387
Location
Ben Wheeler, TX
Tractor
Yanmar YT359C, John Deere 310SE
Yanmar YT 359C tractor.... just picked up a 7' land plane.

We have about a 1/4 mile long dirt/rock road that needed a lot of material due to previous owners not adding but only scraping over 25 years or so.

Had a lot of low spots that held water and coming off the top grade where the water rushes down it was eroding canyons after long hard rains. Nothing new to those who have similar situations.

Decided to start out with 3 (12 ton) loads of road base. (36 ton) total. They also call it flex base which is a mixture of crushed concrete, fines and dirt.. and a little bit of mixed trash
Dumped it on the worst parts. Didn't have the land plane yet but have a box blade.

Box blade worked out OK but as you know it's hard to avoid the ripples.

After those 3 loads my neighbor had some free dirt so I wanted to build up the higher part of the road with that dirt so subsequent layers of rock would raise the whole road.

We had an ice and rain storm after I put the dirt down.. even after it had gotten packed down from driving on it it still turned soft and muddy in that area for a few days.

Decided to purchase the land plane and went on with loads of 1-1/2" crushed concrete on the areas that were soft thinking it would imbed and coalesce with the dirt for a more stable base.

Put down 24 ton of the 1-1/2"

On top of all that we put down 52 ton of flex base.

The problem I was having is.... when grading a hard existing road and re-distributing existing top stone, you can simply drop and float the land plane and the rails ride on the existing hard base as it re-distributes the overlaying stone. Looks beautiful.

Doesn't work that way with 6" of freshly laid stone and gravel.

If I lay the plane down and float it it sinks all the way in as I go and overloads the plane while scraping way too deep digging all the way down to the original road level where it being hard, stops digging.

I'm fortunate to have top and tilt cylinders on my machine which is really convenient.

I'm building technique here to plane out the road without burying the thing.

I try not setting it down all the way which is tricky cause if you are just a little too aggressive it starts to go deep again.

Then I started playing with tilting the front of it up some, then tried tilting the back up some so only either the front blade does most of the work or the back blade.

I found tilting the front up yielded a better depth control.

I've got it pretty good now and wondering that after a couple of months of driving on it and it hardening up tight, the plane will glide with it flat in float mode without digging in.. just scraping the top layer.

Thoughts?
 
/ Land Plane diving in and overloading #2  
How wide and long are the side runners?

How far do the blades drop below the runners?

I built my driveway and never had that problem, but if digging in soft damp gravel it will sometimes plug up on the one side that closest to the upper cross member ...

IMG_20220423_080415293~2.jpg



IMG_20220507_103019874.jpg


I have since made longer runners, which lift the blades 1/4" but increased the length by 50% so less dips ... I added the little"teeth" for weeds, but they don't do much ...

IMG_20240907_150923506.jpg


Here is an in action video ... Mostly for weed control ...

Land plane working!
 
/ Land Plane diving in and overloading #3  
I've never had anything like that to happen. My landplane is homemade and 7' x 7' but it rides on top of anything I'm leveling.
 
/ Land Plane diving in and overloading #4  
A land plane is for light final grading. Are you trying to spread material with it?

I have found that simply driving forward and shaking a bucket of material out works the best for a smooth finish. If it doesn't shake out smooth enough you drive past it and back drag with the bottom of the bucket. Then you have a smooth driving surface for your next bucket load.
 
/ Land Plane diving in and overloading #5  
My LandPlane is fairly heavy for it's width, which is good. It is 5' wide and weighs 650 lbs and the blades are fixed at 3/4" below the runners. It will cut into a hard packed surface w/o scarifiers. But like you have found on yours it is way to aggressive on newly spread loose top material. I control the aggressiveness of the cut with the top link like you are doing. Lengthening the top link makes it less aggressive. Actually using it more as a spreading/smoothing drag than a grader. After I get it pretty good I pack it with the truck. The deep spots will pack more than the not so deep spots and it may need another go with the LandPlane and pack again....etc. After use, time, and some rain it should pack more and your LandPlane should act more like you expected it to.

gg
 
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/ Land Plane diving in and overloading #6  
Top tilt angle adjustment is always the key input for the desired bite a drag behind implement will have. Same as the Gannon (box scraper) a land plane with longer side rails will give flatter results. They can be useless in soft material. Use your gannon to spread and smooth then water and rubber tire roll it down before running the land plane with the front lifted a bit to reduce the cut.
For the record I hated crush aka recycled conc on our road. The dust was unbearable. Ended up covering it with recycled asphalt to reduce the dust. Over time anything we put on just gets pushed down into the dirt when it's wet. 25 yrs of maintaining this road.
 
/ Land Plane diving in and overloading #7  
Sounds to me like you need sub-compactor (rental) followed by a landscape rake equipped with gauge wheels set at a high angle to prevent and eliminate the ripples..
 
/ Land Plane diving in and overloading #8  
I'm thinking you should have gone with a bigger stone than 1.5" over that dirt layer. You probably should have gone with a bigger 3-4" stone and followed that up with the 1.5" stone. I'm not an expert and don't know what your Texas soils are like, but that is what they do in Ohio on a drive.

It may take a while for that drive to settle to keep your landplane from digging deeper. As mentioned, tilt the land plane's front up so the front blade is barely touching or not touching at all.
 
/ Land Plane diving in and overloading
  • Thread Starter
#9  
Top tilt angle adjustment is always the key input for the desired bite a drag behind implement will have. Same as the Gannon (box scraper) a land plane with longer side rails will give flatter results. They can be useless in soft material. Use your gannon to spread and smooth then water and rubber tire roll it down before running the land plane with the front lifted a bit to reduce the cut.
For the record I hated crush aka recycled conc on our road. The dust was unbearable. Ended up covering it with recycled asphalt to reduce the dust. Over time anything we put on just gets pushed down into the dirt when it's wet. 25 yrs of maintaining this road.
Lot's of good answers here. This one mirrors my experience on this road.

Yes we do get alot of dust. It's the concrete getting pulverized over time. I may do as you did and in a year or so add a layer of recycled asphalt.

I do like the idea of making the runners longer... and maybe even wider so it floats a little better.
Maybe pick up some steel and replace the existing ones with enlarged ones just to see how that works.
Or fabricate them so they are like shoes you put over the existing rails and easily removable.
 
/ Land Plane diving in and overloading
  • Thread Starter
#10  
I'm thinking you should have gone with a bigger stone than 1.5" over that dirt layer. You probably should have gone with a bigger 3-4" stone and followed that up with the 1.5" stone. I'm not an expert and don't know what your Texas soils are like, but that is what they do in Ohio on a drive.

It may take a while for that drive to settle to keep your landplane from digging deeper. As mentioned, tilt the land plane's front up so the front blade is barely touching or not touching at all.

I was afraid to go with the larger stone. We do already have a good hard base so it was just that few inches of dirt that I had to content with. Going out today to drive up and down on it after an inch of rain yesterday and see how it packs.
 
/ Land Plane diving in and overloading #11  
Careful adding any thickness underneath the side board runners as this will reduce the potential bite of the blades... although that might be something you want now it could be a negative as the cutting blades wear. Also I found that whatever rubber tire machine you have access to that weighs the most will pack the road the best. That may be the tractor if you have filled tires. And load the bucket & leave the LP on suspended in the air to increase weight. GL
 
 

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