3ph questions

hfd376 · Jul 19, 2002

When the 3ph is down, is it in a float mode, up and down with the contours? Also, will the lowering valve limit up movement?

I think I have this box blade thing figured out. Dig forward, smooth backward. Set the blade level and tilted near neutral. I've read the posts about the box blades but it did'nt make it into the skull. I'll go back and re read them now that I have some dust on the tractor.

Doug

Hawkflyer · Jul 19, 2002

If memory serves, the BX does not have position control. So in the down position the TPH can be forced up by working conditions. You can add weight to a box scraper. There are usually ledges at the top into which you can place concrete blocks or lenthels. That shold help.I don't know if I would call this aspect of a TPH "float" but I suppose it's the same thing functionally. My B2410 has position control and it helps in this regard (at least it seem to hold position well). My old B7100 just worked on the weight of the implement. I could keep it from lowering below a certain point, but it could lift up if it was pushed.

TresCrows · Jul 20, 2002

My 2410 has PC and it does not maintain the down position or provide downforce. It only presets the level/height to which the implement may drop. Only the weight of the implement provides any downforce so the 3-point is always in float, isn't it? The FEL can provide downforce but not the 3-point. Not sure you would even want that on small tractors--it would lift the wheels off the ground which would be very limiting to your available traction--4WD or not. J

dgood1 · Jul 20, 2002

It would be good for changing tires.

Don

Hawkflyer · Jul 20, 2002

I probably said it poorly. The position control prevents the attachment from dropping any lower. You are correct that it does not prevent it from being pushed UP.

hfd376 · Jul 20, 2002

O K, that makes sense. So the lowering control valve, located under the seat, will not let the 3ph from going down any further when it is closed off, but will allow the blade to follow the contour of a rise, correct? Now, if I tilt the blade for a more aggressive dig, it should cut off some of the rise, right?

Thanks for the replies,
Doug

Hawkflyer · Jul 20, 2002

Right. And in fact the more agressive cut will actually help hold the blade down. It can still rise but the blade will try to dig in and hold it. That is why more weight is a good thing.

hfd376 · Jul 20, 2002

Aha! makin' more sense to me now! I've got the driveway close enough now to leave it alone. Well, maybe not. I'll try my hand raising the corner of the blade and crowning it a little. If I mess it up, its just more learning and seat time!

Thanks for the replies

Doug

Hawkflyer · Jul 21, 2002

You can tilt the box as you describe to add crown, but in my experiance this is easier with a blade than a box.

I usually use the box for shaving and shaping then maintain things with the blade. to add (or repair) the crown, I grade gravel from the sides into a pile in the center of the drive, then with a shallow angle on the blade spread it out again, leaving it a little high in the center.

But you can do the same thing with the box.