The GLEANER 9250 DynaFlex features a mechanical drive system. Dual PTO shafts drive the sickle and belts. The center conveyor belt and feed auger are driven from the right and left PTO shafts respectively.

The 30 ft. (9.1 m), 35 ft. (10.7 m) and 40 ft. (12.2 m) DynaFlex headers feature a timed dual sickle drive. The sickle is split in the middle with each side having independent shaft drives. The timing minimizes vibration, resulting in smoother operation.

(SCH) SCHUMACHER Drive
The mechanically driven (SCH) SCHUMACHER epicyclical gear drive, moves the sickle at 600 RPM (or 1200 sickle strokes per minute) with a 3.34 in. (85 mm) stroke. The epicyclical gear crank converts rotary motion to a linear action. The SCH drive is a planetary gear set that provides positive transfer of power to the cutterbar. This system provides the optimum efficiency during operation and service life, as well as provides a quick, complete cut. There are no shafts, belts or sheaves, which results in less maintenance. This reliable drive system provides longer life and increased cutterbar performance.

Patented sickle drives are balanced to match sickle weight, reducing the vibration and power requirement. Sickle drive PTO shafts are dampened to reduce vibration and power requirements.