As far as I remember, two Skid Steer Loaders have been featured here at TBs .
Each with a different implementation for the mechanism to raise the bucket [1, pneumatic cylinders] [2, linear actuator made of discrete parts].
Today a third one from Attila. This time a full RC tracked version, inspired on CAT 277B, and using four LEGO Linear Actuators for the bucket control.
It looks quit well built and realistic.
As usual you may find some more photos from this model, at Attila's Brickshelf folder.