jeff9366
Super Star Member
- Joined
- Jan 14, 2011
- Messages
- 12,777
- Tractor
- Kubota Tractor Loader L3560 HST+ ~~~~~~~~~~~~~ 3,700 pounds bare tractor, 5,400 pounds operating weight, 37 horsepower
Here's an honest question. I've read in multiple places that you should buy a heavier implement (blade, leveler, etc.) based upon your tractor size. It will work better. That intuitively doesn't make sense to me.
The tractor Three Point Hitch lifts hydraulically, but drops by gravity. The Three Point Hitch applies no down pressure to the implement. So the implement weight, usually the implement weight per unit of width, determines penetration of ground contact implements; therefore the dirt cutting ability of implements.
Light Box Blades, light Rear Blades, etc., may skip over hard ground, not penetrating at all, where a heavier implement will penetrate the soil.
Second, some weight of Three Point Hitch mounted implements is transferred to the tractor rear wheels through the Three Point Hitch Lower Links, improving traction. Some weight is transferred to the front wheels through impetus from the Top Link, improving front wheel traction, especially if tractor has 4-WD.
The Three Point Hitch cannot apply hydraulic down pressure when tractor is moving because of Issac Newton's Law of equal and opposite reaction. The weight of the mounted implement must do the work.
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