As noted, it is in the manual. But based on the number of times it comes up here, JD might consider using RED letters to describe it. It is just too easily missed.
Anyway, when you push your lower lever forward, past what feels like the end of the lower implement motion, you will feel the lever move the linkage past a small detent in the SCV. This will actually hold the lower lever in the forward, float position and be clear by the fact the lever stays forward.
Here is a "from the seat" view of the lever when locked in "Float":
Anyway, when you push your lower lever forward, past what feels like the end of the lower implement motion, you will feel the lever move the linkage past a small detent in the SCV. This will actually hold the lower lever in the forward, float position and be clear by the fact the lever stays forward.
Here is a "from the seat" view of the lever when locked in "Float":