I just purchased a 1710 with 770b loader. Did you figure out how to remove? I would also like to know
It is a real simple procedure.
Park your tractor on level ground.
Put the scoop on the ground and hydraulics into float position.
Remove the two large pins at the base of the rear loader arms
Operate the vertical control on your loader in the downward direction to raise the rear loader arms our of the mounting location.
Place the pin of the L arm in the loader mount hole on each side.
Operate control to lower the arms until the weight is on the arms (place a block under the end of the arm if outside so they do not sink)
Move hydraulics until everything is in float position.
Shut tractor off and disconnect hydraulics.
Pull the retaining pins out of the front loader mounts near the front of the tractor.
Wiggle loader manually until pins are free to slide down.
Restart tractor and slowly back the tractor out of the loader.
To reconnnect - drive tractor into position
Reconnect hydraulics
Use hydraulics to lift rear arms and remove L arms (stands)
Lower rear arms and connect large main pins.
Latch front pins and you are ready to go.