John Deere Z Trak F620 Mower
} else { }John Deere has put a new twist on its commercial turf care equipment line with the preamble of its first ever zero-turn radius (ZTR) lawn mower. The new Z Trak F620 mower complements the hydro and mechanical drive commercial Deere walk-behind mowers and its collection of front-mounted riding lawn mowers.
The front-mounted mower deck design allows operators to cut under overhanging bushes and under fence rails while providing clear visibility of the deck. This allow the operator to perform close cut operations.
Power for the F620 mower comes from a 20 hp, 624 cc, air-cooled, twin-cylinder, four-stroke Kohler H20S gasoline engine. It comes with a Kohler specified heavy-duty, dry-type replaceable air filter and Nelson silencer. The engine sports overhead valves and full pressure lubrication with a full flow replaceable oil filter.
A tandem, variable displacement Hydro-Gear hydraulic piston pump provides ground drive for the mower. Each section of the tandem pump provides oil flow, from a common reservoir, to a single, piston-type Parker Ross 197 cc wheel motor. The tandem piston pump is belt driven directly from a crankshaft-mounted pulley. The piston-type wheel motors were used in place of related gear-type motors because of their efficiency advantage.
The system uses steel hydraulic lines to supply a radiant method of cooling the hydraulic oil, which eliminates the need for an oil cooler.
Maximum ground travel speed is infinitely variable from zero to 8.2 mph forward and zero to 6 mph in reverse. Mechanical levers located in front of and on either side of the operator's seat control each pump individually and provide forward, reverse and turning control.
The mower deck blades utilize a PTO shaft drive system that is engaged and disengaged by a Dana Warner Electric clutch and controlled by a switch on the operator control console.
The Z Trak F620 mower was also designed with ease of service in mind. The mower deck incorporates Deere's RFS (rotate for service) system, allowing it to tilt up 90 degrees and lock into position for handy maintenance.
The Z Trak series is available with 48, 54, and 60 in. wide mower decks and a hood-mounted material collection system with a nine bushel capacity.
Did you find what you were looking for? If not, please do a search below.
