Ferris SRS Z1 Series 36" Mower Stand On Kawasaki 603cc EngineFerris SRS Z1 Series 36" Mower Stand On Kawasaki 603cc Engine Soft Ride Stand On (SRS) Z1 Mowers Z1 SRS Features: The PTO conveniently disengages when the operator leaves the platform to move an obstacle or pick up debris. When the operator steps back onto the platform and re engages the PTO switch the blades start again for continued mowing. Easy locking 3 position ground speed control ensures smooth operation in tight spaces while the Hydro Gear ZT