Height of Cut Wheel
The height of cut system on Ariens and Gravely mowers depends on the specific Zero-Turn.
For the Gravely Pro-Turn 300 and 500, a vertical wheel system is used to lock
in the desired height of cut for the mower deck. The operator must push the foot
pedal in to raise the deck, unlock the handle, and then rotate the wheel.
This is easily accomplished due to the lift assist spring on both sides of the deck.