Part fell off underneath of 1025R

Thanks for the diagram. Excuse my ignorance-- what would this impact? (What symptoms should I be seeing)?

Well the brake would no longer be able to lock the differential nor would the differential lock work. This could be a problem as the diff lock is engaged during the first bit of brake pedal travel to insure both rear wheels are getting brakes. You see there's only one brake for the entire tractor, not one per wheel like your car. So if one wheel slides, you have zero brakes. So yeah, it's kind of important.

Are you under warranty?

Thanks I have the same mystery missing part and my brakes don’t work. Now I know what to research to fix it

Harmony said:

Thanks I have the same mystery missing part and my brakes don’t work. Now I know what to research to fix it

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Hang on a second. I believe the brake linkage is independent from the diff lock linkage after the pedal. In other words, the brake pedal operates the brakes and the diff lock via a common rod, but they are two separate systems.

Diff lock linkage is, if I remember right, left side of the tractor. Brake linkage is on the opposite side. Both are adjustable independently.