Hi, dual hydraulics are used to lift different parts of
cultivators separately.
Lift the front set at the end of a row, before the rear set, to cover the wheel tracks.
Or if set to lift one side at
a time on end rows for single row cultivation.
For every day use lock the inside lift lever
back and set the hand wheel under the seat
for single use.
Buy the manual on CD from Mother Deere
for your model 1010.
Later,
Doug