| John Deere has put a new twist on its commercial | | | | piston pump is driven by a belt directly from the |
| turf care equipment line with the preamble of its | | | | crankshaft pulley. These piston type wheel |
| first ever zero-turn radius (ZTR) lawn mower. | | | | motors provide greater efficiency than the gear |
| The new Z Trak F620 mower complements the | | | | type motors. |
| hydro and mechanical drive commercial Deere | | | | The system uses steel hydraulic lines to supply a |
| walk-behind mowers and its collection of | | | | radiant method of cooling the hydraulic oil, which |
| front-mounted riding lawn mowers. | | | | eliminates the need for an oil cooler. |
| The design of these new mowers allow operators | | | | The operator can move at a variable speed of |
| to achieve close cut operation by providing clear | | | | zero to 8.2 mph forward and zero to 6 mph in |
| visibility of the deck. This front mounted deck also | | | | reverse. Mechanical levers provide control of |
| allows them to get under overhanging bushes and | | | | forward, reverse and turning. These are located in |
| under fence rails. | | | | front of and on either side of the operator's seat. |
| Power for the F620 mower comes from a 20 hp, | | | | The mower deck blades utilize a PTO shaft drive |
| 624 cc, air-cooled, twin-cylinder, four-stroke | | | | system that is engaged and disengaged by a |
| Kohler H20S gasoline engine. It comes with a | | | | Dana Warner Electric clutch and controlled by a |
| Kohler specified heavy-duty, dry-type replaceable | | | | switch on the operator control console. |
| air filter and Nelson silencer. The engine sports | | | | These new beasts are really easy to work on to |
| overhead valves and full pressure lubrication with | | | | with a rotate for service system deck. This RFS |
| a full flow replaceable oil filter. | | | | allows a tilt of 90 degrees and lock for handy |
| Providing ground drive for the ZTR is a tandem, | | | | access. |
| variable displacement hydraulic piston pump. The | | | | |