Combines 9790 in Milo shoe loss

[drohrbough]

Does it have all the knives in it. That could break up the material and over loading the shoe. I have not been around the 9790 but I have ran a 8780XP in wheat. It was doing the same thing.. It needed to have some of the knives removed. We are running R-62's. I would like to demo the 9790. let me know how it goes.. It looks like it will be a very simple productive design. Thanks, drohrbough

 

[todd08]

I will check tomorrow, noticed a couple of things after studying the book, It has all three block off plates installed on concaves. Book does not mention needing, It has the solid concave overlaps in, book says should have perforated ones. It has a 1 1_8 chaffer with 7_8" vanes. Book makes special notice on Milo if loss over shoe is experienced, 1 5_8 with 7_8" vanes should be used. Do you think the wide spaced chaffer can increase cap that much. I have always stayed to the 1 1_8 chaffers in my old farmall's. I have my doubts that my dealer would have the wide spaced to try. Thanks

 

[swtvid]

I dont know Milo but the cover plate can be use for two things, for hard to thrash grain like hard red wheat or easy thrash but vary small to big head on the crop with the concave open reel wide so the little head dont get pushed through concave before been thrash. The people I has talk to about the new rotor say they have not use any cover plate, where they would have use 2 or 3 before. It sound like over thrashing, maybe open concave and few to no knife depending on green vine or weeds. Swtvid

 

[Harvester]

I would remove the 3 blanking plates; use them as a last resort, and you shouldn't need them with all the wires in the corn concave. Check to make sure your distribution panels are spread out as far as possible to load shoe evenly, and install the perforated concave overlap plate that should have come with the corn concaves. The 1 5_8" chaffer should also help; it handles high trash better than the shallow vane 1 1_8" grain chaffers.

 

[lee_W]

I would agree with what the other guys are saying, we are running a 8590 the only time we used the blanks is for wheat. We use a combination of concaves on this machine we use a small grain in the first slot and a 1 1_4 in the next three and 5_8,s in the last three. This seems to work well on the crops we harvest. I am running 450 rpm in milo. We are using a air foil type chaffer. We harvest corn,milo,wheat and beans.

 

[todd08]

I thought I would post an update. This machine has 90 separtor hrs, previously demoed in wheat. I went to my dealer and showed him in the book where it said to use perforated concave overlaps, no suggestion of the 3 concave blocking plates, and if excessive loss on shoe the book said to use 1 5_8" shallow finger 7_8" . He sent the perforated concave overlap home with me. I removed the solid overlaps and the 3 concave blocking covers. Proceded to check concave to rotor bar clearance with actuator all the way up 0.0 Guess what I found front probably 3_4" clearance, back nearly 1_4" Proceded to level concaves as book says, with high bars marked with red paint on rear of rotor. Funny how front turnbuckle is nearly as short as possible while rear turnbuckle is mid range. No evidence of paint removed from previous wrench marks. Can not see evidence that concaves are bent, seem to be OK side to side. However beater belt is nearly cracked into... like someone has slugged it. Went to the field today and does a nice job as long as I do not push it. Can still plug chaffer if crowding, fan speed 1300+, Still when doing a power shut down... to much broken trash (leaves) to sort. I think the back grates are probably too large for optimum capacity. Different chaffer would also help.

 

[swtvid]

On the 90 series the front 3 concave have a spacer that can be put under the front 3 concaves to bring only those 3 up closes for thrashing and back 4 for more separating, the block should be on top of concave mount for the concave setting to be the same on all 7. Good harvest Swtvid

 

[todd08]

The block (shim) was on top, all were equal. Do you think the factory is this poor on set up or do you think within the first 90 separator hrs someone bent the concavesIJ No apparent out of curvature on bottom of concaves(all 7 look in a row). like I said earlier beater belt is about to break into. Other funny part I noticed is... the concave side to side measurement seemed parallel to rotor 1.75" but the brackets that adjust the right side with the tube the concave mount to. They move with eyebolt and cariage bolts. The front bracket is adjusted nearly all the way to the left, while rear bracket adjusted almost clear to the right. No evidence of movement or wrench marks after painted. Paint totally intact. Does the factory make them all this way. Seems like if the side to side adjustment needed much adjustment one way, you would not be able to obtain, however the other way lots of movement obtainable.

 

[swtvid]

I run an old 8570 and think it is pretty even on the front and back adjustments; it would be interesting to know the whole store. I have email agco on a couple of thing and they got back to me on both, or if you could talk to the agco service rep. that would be better. I have a question on dimension on the 9790 if you could help, I was told that the 9790 is 8 wider then the 9690 that would make the feeder housing around 52to 54 and front beater around 54 and the shoe around 50, if you have those measurement could you post please. I wont to know if they are the same as the early 8590, I know the rotor is smaller, but the rest seem pretty close. Thanks Swtvid

 

[s]

9790 is 11" wider. Feeder house is 55" and shoe is 61"