Gleaner A438 corn header auger speed

Russell Moore · Nov 15, 2018

I am trying to figure out what the average rpm of the auger in the a438 corn header is
The header is on a Gleaner F2 with the cylinder speed at 500 rpms
Thanks for any information

Bob Bancroft · Nov 16, 2018

Unless someone has been playing around, and altering things, why? I don't know that that has ever been an issue.
You do know that cylinder speed has nothing to do with header/auger speed?
Do you have variable speed header drive on your combine? With or without that, there are sprocket choices on the header.
Typically, you would get your header speed where you want it, and the cross auger just goes along for the ride. I'm wondering if you have your header running way faster than it needs to be, and the auger is getting your attention?
Corn header should be running just a little faster than ground speed.

Russell Moore · Nov 16, 2018

I’m not having any problems with the auger or the speed of the header
The reason I am asking about the speed is I’m going to use the shaft driving the auger to drive the reel I’m going to build to help me with my down corn problem
Once I have an idea of the shaft speed I can figure out what sprockets I need to order for my reel

Bob Bancroft · Nov 16, 2018

OK, now I understand.
I have a photo-electric tach which reads off a piece of reflective tape. A friend has my fathers old [Veeder-Root?] revolution counter which actually counts every revolution. Without some tool like that, I don't know what you can do.
My F2 is long gone, so I can't try it for you!

Russell Moore · Nov 16, 2018

I have a friend that has one of those rpm meters that u put the little wheel on the shaft and it measures it
He is looking for it just thought someone here may know

JMS/.MN · Nov 16, 2018

I"m wondering if a service manual might have that info, or at least rpm on the combine, and you could figure out the others by measuring sprockets. Seems like that info might be in pages relating to adapting diff heads to diff combines.

mulcher · Nov 16, 2018

Could you put a mark on the auger and with engine idling count revolutions in a minute. If engine idles at 600 rpm and runs wide open at 1800 rpm then just multiple revolutions counted by 3. You could use whatever numbers you come up with and plug them into a ratio. If it turns to fast to count at an idle then I have my Dad's rpm meter that he held on the end of the shaft that he used to set Cylinder speed on his AC 60 combine.

Brian

jfreed · Nov 20, 2018

Will you be running corn with the cylinder at 500 rpm's?? We only run our F2 at 370-400 tops in corn,just curious. Above all else,be safe!!

Russell Moore · Nov 20, 2018

Yes we run the cylinder speed on 500 in corn with 2 bars off the concave door same set up on the F2 and the K for corn
I did get a meter and measure the shaft speed that drives the indeed auger it was 480 rpm’s
I have everything now to make my reel starting on it in the morning

Gleaner A438 corn header auger speed

Russell Moore

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Bob Bancroft

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Russell Moore

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Bob Bancroft

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Russell Moore

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JMS/.MN

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mulcher

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jfreed

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Russell Moore

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