The heavy-duty epicyclic knife drive gearbox provides an enhanced knife-drive system that increases drive capacity with less vibration and improved reliability.
John Deereâs single-point header latching system provides combine operators a fast and easy method for connecting all front-end equipment. One easy motion of the lever connects the electrical and hydraulic circuits along with header retaining pins.
The enhanced single-point latching system, includes a valve assembly mounted to all platform and corn head back sheets. These assemblies include an orifice valve unique to the header type and a pressure override valve. Together, these valves ensure the performance and reliability of header hydraulic functions.
The HydraFlex system hydraulically controls the float of the cutterbar by a simple turn of a knob in the cab. This provides exceptional cutterbar flexibility throughout the entire working pressure range. Higher ground speeds can be accomplished with HydraFlex, compared to the conventional float systems.
In automatic mode, the operator sets a desired cutterbar ground pressure, and the system will maintain this setting. If a different set point is desired, the operator adjusts the encoder on the armrest board, and an updated cutterbar float pressure reading will be shown on the cornerpost display. For increased ground following in uneven terrain, decrease cutterbar pressure to make the cutterbar heavy to the ground. If soil pushing occurs, increase the cutterbar pressure to make the cutterbar lighter to the ground.
|Type||Knife system with in-line gearbox: 102 mm
|Cutterbar angle||10 degree (angle)|
|Cutterbar length||6.7 m
|Flex cutterbar float range||152 mm
|Tilt adjustment||Located on feederhouse: 17 degree (angle)|
|Knife sections||Heavy-duty, over-serrated|
|Guards||Forged steel, heat-treated|
|Backshaft speed||490 rpm|
|Knife speed||520 cycles/min|
|Cutting width||6.7 m
|Gathering width||6.8 m
|Overall width||7.5 m
|Approximate weight||1,912 kg
|Reel drive system pressure||14,000 (+/- 1,000) kPa
2,000 (+/- 150) psi
|Reel fore/aft stroke||359 mm
|Operating speed||Slow down: 135, 152 rpm
Speed up: 170 rpm
|Number for slats||6|
|Operating speeds||6-44 rpm|