835 Mower-Conditioner

The 630 and 635 Side-Pull Mower-Conditioners and the 830 and 835 Center-Pivot Mower-Conditioners are available with a urethane roll conditioner.

The urethane roll conditioner works well in legumes, especially alfalfa, and most all-grass crops.

In general, roll conditioners are better suited for thick-stemmed, cane-type crops and crops more than 1.5 m (5 ft) tall.

Moulded urethane rolls are formed by a cool moulding process that does not distort or warp the steel core of the roll:

This process ensures the rolls are straight and cylindrical, so they can be accurately spaced close together for uniform conditioning along the length of the roll.

An intermittent recessed cleat design gives more crimping edges for greater pressure per square inch, which results in superior conditioning and faster crop drying.

The wide swath kit is a factory-installed option for the 630, 635, 830, and 835 Mower-Conditioner models.

When equipped with an impeller conditioner, the kit consists of a redesigned base swath board and four (3.0-m [9.8-ft]) or six (3.5-m [11.5-ft]) steel vanes bolted to the bottom of the swath board.

On roll conditioner machines, the kit also comes with a redesigned base swath board but has six (3.0-m [9.8-ft]) or eight (3.5-m [11.5-ft]) steel vanes.

When the forming shields are fully open, this kit will increase windrow width up to 25 percent over the base configuration of the machines.

For added manoeuvrability, the 830 and 835 Mower-Conditioners offer an optional rockshaft swivel hitch. The swivel hitch includes an overrunning clutch behind the primary driveline to enable free rotation of the tractor hookup to make attachment to the tractor easier.

The swivel hitch is available in 1000-rpm power take-off (PTO) only. It attaches to the lower lift arms of a Category 2 or 3N 3-point hitch with or without quick-hitch.

This option enables cutting square corners without the need to reposition the platform using tractor hydraulics, as well as making it easier to cut around field obstacles.

U-joint angles remain constant for reduced driveline noise and vibration in turns. A powerline support cable keeps the driveline out of the dirt when detached from the tractor.

A parking stand allows quick and easy hookup. A down stop chain is also included to limit travel of the rockshaft to prevent damage to the implement driveline.

John Deere's patented design cutterbar is made from individual, diagonal-cut modules.

Serviceability is easy. Modules can be removed individually while leaving the cutterbar attached to the frame.

Made of high-strength, nodular iron castings, each module consists of two idler gears and one drive gear. The large-diameter idler gears transmit power from module to module. The idler gears turn at a relatively slow speed for added durability.

The smaller-diameter pinion drive gear is used only to power the cutting disk. Power is not transmitted from one cutting disk to another except through the large-diameter idler gears.

The modules are interchangeable. Disk rotation is determined by the position of the quill (A). There is a rubber oil seal between each cutting module.