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John Deere Mower Conditioners are built with extra durable parts to withstand the tough conditions of everyday use. And with innovations like our cutterbar's patented shear hub, you can be sure that should you hit an obstruction, getting your machine up and running will be fast and painless.
Modular-design cutterbar
Steel roll conditioners
Adjustable roll pressure
Hydraulic tongue positioning

When your hay is ready, and the forecast looks good, you want cutting done fast. Well you are in luck, because John Deere Rotary Mower-Conditioners let you zip through even tough cutting conditions.

The speed is yours for several reasons. Rotary discs, with a tip speed of 191 miles per hour (307.4 kph), zip through crop. The rugged cutterbar, and easy-to-adjust suspension system, lets you hug field contours, and move over rocks, and through softer obstructions like ant hills or varmint mounds.

Speed also comes from fast maintenance and easy adjustments to the cutterbar angle, the conditioning level, and windrow forming shields. No matter the crop conditions, or the field obstructions, John Deere Rotary MoCos get you cutting fast.

The Rockshaft swivel hitch gives the 946 and 956 Mower-Conditioners excellent maneuverability.
The rockshaft swivel hitch attaches to the lower arms of a Category 2 or 3N 3-point hitch and can be used with or without a Quik-Coupler. This hitch enables cutting square corners without the need to reposition the platform using tractor hydraulics, making it easier to cut around field obstacles.
The U-joint angles of the tractor hookup remain constant for reduced driveline noise and vibration.
The rockshaft swivel hitch is easy to hook up. The spring-loaded attaching arms are tilted upward when the hitch is set on the built-in parking pad. The arms can be positioned to permit easier alignment with the 3-point hitch arms.

NOTE: Requires a 1000-rpm power take-off (PTO) (3.5 cm [1-3/8 in.]) and a 107.7-kPa (2250-psi) hydraulic system with dual selective control valves (SCVs).

NOTE: The PTO can be converted to a 4.4-cm (1-3/4-in.) driveline by installing a yoke (AE56235) and cross bearing assembly (AC15878). Order through Parts.

NOTE: The rockshaft swivel cannot be converted to the drawbar swivel hitch configuration.

The drawbar swivel hitch attaches to the tractor drawbar with a drawbar extension. This enables the mower-conditioner to be used with tractors without a rockshaft.
The turning radius is reduced approximately 10 degrees compared to the rockshaft swivel hitch. The U-joint angles of the tractor hookup remain constant for reduced driveline noise and vibration.
The drawbar swivel hitch is designed to be towed by a tractor only (the static load on the drawbar is approximately 771.1 kg [1700 lb]) and includes a screw-type jack and safety chain.

NOTE: The drawbar swivel cannot be converted to the rockshaft swivel hitch configuration.

The rotary cutterbar is designed and built by John Deere. Large oval disks with free-swinging knives are used to cut the crop.
All cutting disks are the same and are computer-designed for improved wear and cutting performance.
Cutting disks are made of high-strength, austempered steel to ensure the steel is thoroughly and evenly tempered for good wear characteristics.
The disks rotate to give a knife-tip speed of 307 km/h (191 mph) for clean cutting.
The knives are free-swinging to reduce damage if a solid object is struck, and they are reversible to double the useful life.
The knives are removed at the front of the cutterbar for convenience.

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.

An impeller conditioner is available for the 946 and 956 Mower-Conditioners. Proper conditioning in a wide range of crops can be achieved when the conditioner is properly adjusted. The impeller conditioner works well in legumes, especially alfalfa and most all-grass crops. Impeller conditioners are not recommended for thick-stemmed or cane-type crops over 5-ft tall.

The 946 and 956 Mower-Conditioners are also available with large, 25.4-cm (10-in.) diameter, 269.2-cm (106-in.) long, molded urethane conditioner rolls. 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 taller grasses over 1.5-m (5-ft) tall.

Molded urethane rolls are formed by a ''cool'' molding 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. The intermittent recessed cleat design gives more crimping edges for greater pressure per square inch, which results in superior conditioning and faster crop drying.

The V-10 steel conditioner rolls feature 10 angled flutes arranged in a chevron pattern, or V-pattern, along the length of the steel core. Steel rolls offer improved wear life over urethane rolls, particularly in adverse crop conditions.

More crimping edges for improved conditioning
Improved feeding
Improved windrow formation

Tri-Lobe steel conditioning rolls have three intermeshing chevron lobes to crush the length of the stem for improved conditioning and faster drydown. The rolls are manufactured using a patented process.

The steel material increases wear life, especially in abrasive crops or soil conditions. Durability is a distinct advantage compared to other crusher-style rolls made of rubber or urethane. The chevron design of the rolls gives positive feeding and improved crop flow.

These rolls are well suited for use in alfalfa, where reduced curing time results in less bleaching of the crop. In heavy, thick-stemmed crops, such as sudan or sudex, the steel construction of the rolls does a very good job of breaking up the nodes on the stems to improve drydown.

An easy-to-adjust lever (arrow) is used to position the swathboard. The swathboard controls the crop flow into the windrow-forming shields. The windrow width is adjustable from 101.6 cm to 254 cm (40 in. to 100 in.), depending on crop conditions, when equipped with a roll conditioner or an impeller conditioner.

Similar models may be shown in addition to the featured model. Equipment may be shown with options. Specifications are subject to change without prior notice.
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