John Deere's D-Series motor graders have been updated with enhancements designed to deliver a boost in productivity. These improvements include a mid-mount scarifier for the 670D, 672D, 770D and 772D (pictured) machines; an integrated grade control package that is designed to save installation time and provide professional integration for the D-Series line; and for all-wheel-drive machines, a new low-speed precision mode and improved steering.
The mid-mount scarifier option comes equipped with a full set of 11 teeth and is mounted between the blade and the front wheels. Both the front-mount scarifier and the rear-mount ripper-scarifier are offered as well.
“John Deere's updated graders now offer sturdy and durable mid-mount scarifiers with a V-shaped design and improved balance,” says Jeff Rowan, product marketing manager for motor graders for John Deere. “The attachment is not only heavy-duty, it gives ground penetration and visibility.”
The all-wheel-drive machines (672D, 772D, 872D) provide a precision mode that lets the operator proceed at a super-slow speed. Because of the hydrostatic front-wheel drive, the operator can dial down the tractor speed in first, second and third gears to about one-quarter mile per hour. “This slow ground speed allows the operator to do really fine, precise grading,” Rowan says.
Verified by Jeff Rowan, product marketing manager for motor graders for John Deere.
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VITAL STATS
Operating weight of 772D: 40,790 pounds
Maximum hp of 772D: 230
Blade pull of 772D: 43,200 pounds
