How to Clean a Combine to Limit the Spread of Weed Seeds

How to Clean a Combine to Limit the Spread of Weed Seeds


Hi I’m Daniel Smith Southwest Regional
specialists for the Nutrientand Pest Management Program at the University of
Wisconsin Madison campus. And I’m Kevin Jarek, Crop, Soils, and Horticulture agent for UW Extension Outagamie County. Today
what we want to do is talk about end of season clean-out for combines. As a
member of the North Central Region Cropping Academy, we’ve developed a
protocol that will help farmers with this process when a
combine leaves the field. Most farmers don’t realize that there’s a bout of 150
pounds of bio material that leave the field with it one of the things that we
want to discuss today is the fact that while there is a protocol that exists
for identity preserves seed as far as cleaning combine, our concern is
herbicide resistant seed being transported one from one field to
anothe,r and particularly hitching a ride on the combine. Before we start to clean
the combine it’s important to talk a little bit about safety. We want to read
and follow all safety instructions that come with the combine, the compressor,
and the leaf blower that we’ll be using to clean the combine. It’s also important
to wear protective equipment while we’re cleaning the combine. We both have jackets, long pants, and work shoes on, along with gloves. The first
part of our personal protective equipment that we need to add will be a
respirator or a dust mask with at least a nosh 95 or P 100 rating for the
filter size. The second portion of our PPE includes some sort of eye protection.
Good safety glasses or even goggles to prevent any fine material from flying
into our eyes. And then the final step since we’ll be using a loud leaf blower
and air compressor would be some sort of hearing protection, either earplugs or
earmuffs. Prior to leaving the field, run the
combine, and then what we want to do is engage the
safety stop and open the rock trap. The next thing we want to do is open the
unloading auger sump. The next thing we want to do is open the tailings elevator
door and the clean grain elevator. Now we’re going to start the combine and
separator, adjust the cleaning shoe fan to full speed for maximum air flow and
alternately open and close the shoe SIVs electronically.
Now that we’ve operated the combine over a rough terrain for two minutes to
dislodge any further material, we’re going to move to the top of the machine
to the grain tank. We always want to clean from the top down. Dan is going
to show us how to use a leaf blower to begin that process. We also want to make sure after using
the leaf blower to get the material that that is not dislodged by air movement.
Here you can see Dan using a knife to remove kernels that were a part of the
safety step. The next thing we want to do is clean out the unloading auger. We’re
going to accomplish that by packing approximately a cubic foot and a half of
wood chip material, approximately half inch in size, into the sump. Now that we finished cleaning the
unloading auger we want to make our way towards the front of the combine,
particularly the header unit. We want to lift the snouts so we can expose the bio
material that’s accumulated, and now it’s time to remove this. Now that we’ve cleaned the exterior of
the header, unit we want to make sure we clean the interior as well. Now that
we’ve removed the head of the machine we want to use compressed air to blow bio
material from the feederhouse. now we want to remove the access panels to the rotor and cylinder concave to clean the threshing area. Next you want to use compressed air to
clean the exterior of the combine your walk-around remove any bio material
that’s still on the machine as well. The next thing we want to do is remove
residue from the clean grain auger. The next thing we want to do is clean
the chopper by removing plant material from the rotor. Now that the sieves are
open to their maximum width, all we need to do is remove the cover. The next thing
we want to do is clean the elevators by opening the lower doors. The next thing
we want to do is open and empty the moisture sensor and then reassemble, andthat will finish the process for us today. By following the steps outlined in this
procedure this should help limit your exposure to spreading herbicide
resistant weeds through your combine. For more information please follow the links
at the end of this video.

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