The hydraulic lockout control is located at the left side of the left console.
Locked - Move the travel levers/pedals and move the joysticks to the HOLD (center) position. Move the hydraulic lockout control backward to the LOCKED position. This makes all of the factory installed hydraulic controls inoperable.
Note: Make sure that the hydraulic lockout control is in the LOCKED position before attempting to start the engine. If the lever is in the UNLOCKED position, the engine start switch will not function.
Unlocked - Move the hydraulic lockout control forward to the UNLOCKED position. This makes all of the factory installed hydraulic controls operable.