Before turning the blade

[quote="Asterix"]Hi, I definetely need to turn the blade on my old D8.
Unfortunately for many reasons it worked in the last season with the frame too (now blade and frame are consumed both), so now the blade once turned will protrude about 7cm (2.8 inch) out of the frame.
Before starting the work I doubt if it is too much, and if the blade can be damaged by a fixed obstacle while working.

Thanks

A.[/quote]


I believe you are asking about turning the cutting bits over and how complicated this will be. The answer depends upon what type of tools you have. If you have a 1" impact wrench, you should be able to remove the nuts on the bolts which hold the bits to the blade. If you do not have an impact wrench which is large enough to do the job, you will probably have to use a torch. If you are good with a torch, just cut the nuts off and save the bolts. If you cannot confine the torch flame to the nut, you'll have to cut the nut and bolt and replace both.

Your blade can be built up where is is worn. The easiest way to do this is to remove the blade from the tractor and turn it upside down. This eliminates overhead welding.

Whatever you do, when you support your blade to remove the nuts from the bolts which attach your cutting bits to the blade, make sure the blade is supported properly so it cannot drop on you when you are underneath it.

As long as your frog is not worn into the bolt holes you should be good to go.

Did that job on my D7 several years ago. We had to weld some new steel onto the frog at the ends and redrill for the corner bitts, also had to build up in a couple places and do a bit of grinding. The cutting edge wants to sit solid against the frog. If there's gaps between edge and frog there's a risk of the edge or bolts breaking.

Thanks, but still a question is on the table: what is the optimal distance for the cutting hedge when it sticks out from the frog border.

A.

I have not seen a minimum spec for the distance between cutting edge and frame. It's kind of a judgement call to change them when you get close to the frame. Original cutting edge width for the old D8's was 10 inches, with bolts in the center so you can tell where you are at from there.

If your already worn into the frame I'd have to find a tractor with unworn frog to check.

Thanks Old Magnet, this is what i need to know, since the frame appears to be worn and I don't know how much it was

A.

Nobody suggests its opinion ?....