Park and turn off the Kubota tractor and allow the engine to cool.
Push down on the button on top of the lift lever, which is to the right of the seat, and pull the lever back to lift up the front tires. Let go of the button when the lever is in the right position.
Release the wheel mechanism on the back to change the position of each rear wheel.
Move the links on the front of the deck down to raise the deck cutting height or adjust the links up to lower the deck cutting height.
Understand that some G1900 models have large springs on the deck rear on each side. Pull the handle on the spring to release and change the height position of each spring and move the deck.
Park the Kubota tractor and wait for the engine to warm up, as moving the hydraulic system when cold can damage the system.
Push the button on top of the hydraulic lift lever, which is located to the right rear of the seat.
Move the hydraulic lever forward to lower the mower deck and then release the button to lock the lever and the deck into place.
Press the button on top of the lever again to move the lever back and lift up the mower deck. Release the button to engage the lift and the deck at the raised position.
Turn off the mower when the desired setting is reached.