3-Point Hitch Won't lift

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2007 Kioti DK45SE HST .

Most tractors have a knob directly under the front of the seat. If the knob got closed accidentally the 3 pt. work work. The knob controls the speed the 3 pt. lowers but if closed it work work at all.

New Message: My rear 3pt. hitch lever is not working but my top ones (red/yellow) are work fine. Is there something on the rear lever lift missing that came off ?