automating the quick attach on an L3800 Kubota tractor
Channel: jerry molaver
Date: 2022-12-23

This was a project I decided to do, just because. By automating the quick attach the operator does not have to get off the operating station to change quick attach implements on the tractor. ie you can easily swap the bucket for your forks or stump bucket while staying seated in the tractor. 
I used a 200mm linear actuator (approx 8") to provide the force to move the quick attach levers. the one selected is rated at 330lbs of force. more than should ever be needed. it takes about 16 seconds to fully open or close the locks. 
The actuator is connected to the 2 12mm bolts on the levers via 1-1/4" OD aluminum tubing with 1/4" wall thickness. at the bolt ends holes were đrilled to allow 20mm aluminum tube to go through and serve as sleeves for the new longer 12mm bolts. the sleeves allow the tubing to slightly rotate around the bolts as the levers open and close. 
It was a fun project and 99% complete now. I just want to add some retracting cable near the bucket so I don't end up with any wire exposed.
LED operating lights were added on the dash. They flash red when the actuator is powered to the open position and blue when powered to the closed. 
The operating switch is located in an unused slot next to the range control. it has 3 positions: open off close. I power it from a fuse block I added in the rear of the tractor. the whole block is switched on/off with the ignition key.