Wingfield Framed/Lift Chain Harrow Adjustment
CREDIT: - pmbutter - March 18, 2019
"There is a lot of contradictory information about which hole to use for the
inboard end of the top link.
The
top hole gives the least elevation change of the tail wheel, but better maintains parallelism with the ground.
An earth turning plow ought to be in one of the upper holes, so it remains at a proper working angle, regardless of its depth.
The
bottom hole provides the greatest elevation change of the "tail wheel" of my "implement", but it also the greatest angular change relative to the plane of the ground.
The bottom hole is best for something like a landscape rake where you might want to lift it up and out of the way, perhaps with a little more angle so trash drops off the tines."
The
bottom hole is the position of choice for a Subsoiler, an implement which often has issues with penetrating sufficiently deep and, when raised, having enough clearance to clear the dirt completely.
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From continued reading I speculate that a Landscape Rake might provide a similar usefulness and take up less space. Have never used either so have no idea which would be better for my use. I have the land decently level with the box blade, but don't know which of these two tools are optimal for final leveling before the grass seed is put down.
You will probably prefer the Chain Harrow, which is flexible and the mat suspended, therefore mat follows the contour of the land closely, even as the TPH moves up and down. Due to mat design Chain Harrows do not dig in nor hang up on stumps or roots in the soil.
A rigid Landscape Rake moves up and down with the oscillation of the Three Point Hitch as the tractor wheels encounter uneven ground individually. Even with gauge wheels this is a problem. The Landscape Rake is more for grading when you want to move dirt or gravel to fill low spots, though move less dirt than a Box Blade. ( A heavy Landscape Rake is functionally 1/3 of the way to a rear/angle blade.)
If your dirt contains a lot of 2" to 4" surface rocks, which a Landscape Rake will windrow for removal, it would influence my recommendation an increment toward the rake over the harrow.
I owned an excellent ETA Landscape Rake with gauge wheels but sold it because I used it infrequently in my woodlands trail maintenance. I use the Chain Harrow regularly.
I have not priced ETA Landscape Rakes with gauge wheels in the last two years but I speculate they are twice as expensive as a framed/lift Chain Harrow. Light, cheap Landscape Rakes are practically useless.
You have not revealed how much space you want to smooth. Have you considered hiring four High Schoolers to power four bow rakes under close supervision?