JD 6620 Combine

Rich.Fl · Apr 9, 2023

I am trying to drain and refill the final drives on a JD 6620 combine. The manual says there is a fill, check and drain plug. I can easily find the fill and check pipe plugs, but do not see a drain plug anywhere. Anyone familiar with these? Did they all have a drain plug?
Thanks!

Muir hill 101 · Apr 9, 2023

Maybe just pull the lowest bolt out ?

Texas Cowboy · Apr 11, 2023

What is on the flat spot in the second picture? Looks like an allen head plug. Tony

Rich.Fl · Apr 13, 2023

Tony and Muir Hill- Thanks for your input!

I attached a close up of the flat area I think you were talking about. That is a pin that is smooth on both ends. Looking at the parts diagram both this pin and the bolts are centered in a shoulder/flange where the two halves meet, so don't think removing one will allow oil to drain. I will see what I can pump out via check hole and go from there. Thanks!
Rich

JD 6620 Combine

Rich.Fl

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Muir hill 101

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Texas Cowboy

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Rich.Fl

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