John Deere 4400 loader issue

This is a hands-on repair diagnosis for a specific loader fault: a John Deere 4400 with a 430 loader where the bucket rolls the wrong way past a certain point. The creator tears down the loader control area, removes seat components to access it, and finds a worn poppet valve bleeding off pressure, causing rollback and lift capacity problems. Useful for owners troubleshooting this exact symptom, not a general overview or buying guide.

Appears to be a repair-focused channel documenting an actual teardown, likely from someone doing hands-on service work rather than a dealer or reviewer.