Crawler I Dozers
The John Deere 764 HSD defines a new machine form that fills a gap between The cab-forward design on the Komatsu dozers improves visibility to the blade,
finish dozers and motor graders. eases operation for less experienced operators and allows for a smoother ride.
Dozer Designs Push the Cutting Edge
After years of evolution, there is a full-scale revolution.
By Curt Bennink
A fter a decade of slow evolution,
2008 marks the advent of revo-
lutionary change in dozer designs.
lized. For example, the 764 HSD
could replace a finish dozer and a
grader in applications where you
tional dozer, enabling faster grading
speeds. “We are able to final grade at
up to twice the speed of a steel track
grading ability of a motor grader in
that case.” He claims the 764 HSD
would actually be more maneuver-
Convention has been placed on the are simply finishing up a building machine,” notes Drescher. “As the able than a grader in this situation.
sideline as “clean sheet” designs pad or a section of road. “It has the technology advances for grade con- In addition, an 18-mph top speed
have resulted in the introduction of potential on a site to replace some of trol systems, we will probably exceed through its hydrostatic transmission
unique solutions to previous limita- the machines that are only working that a little bit.” allows the 764 HSD to move quickly
tions. Following is a look at three of part of the time,” says Drescher. “You The length combined with 6.2-psi across large jobsites. “Because it does
the most innovative concepts intro- can then dedicate those machines to ground pressure and center-pivot have rubber tracks, you can go across
duced this year. another job where they are working articulation offer some unique oper- any paved or finished structures
all of the time.” ating characteristics. “It allows you without damage to the surfaces,”
Defining a new The unique specifications of the to do some pretty close in and pre- says Drescher. “You eliminate the
machine category 764 HSD give it advantages in cer- cise work, like fine grade rock in a need to either board over the surface
This Spring, the John Deere 764 tain applications. With a 22-ft. 5-in.- finish parking lot,” says Drescher. “It or put the equipment on a lowboy
HSD (High-Speed Dozer) took long base, it is longer than a tradi- has the flotation of a dozer and the and haul it to the end of the site.”
CONEXPO-CON/AGG attendees For jobsites that are close together,
by surprise. With a profile unlike the 764 HSD can easily be roaded. “It
any dozer currently on the market, has turn signals, flashing warning
the quad rubber-tracked 764 HSD is lights and slow-moving vehicle license
intended to bridge the gap between a plate capability,” notes Drescher.
dozer and a motor grader in certain At 200 hp, the 764 HSD is not
applications. going to replace a primary scraper
“It is going to show really well tractor. But it is equipped to pull
in any application that requires a rear-mounted attachments such as
machine with pushing ability that sheepsfoot compaction wheels, land
can work around finished pavement, planes or smaller pull-type scrapers.
plus requires mobility on a jobsite,” “We have shown it is a real versatile
says Dan Drescher, product mar- machine with an 11- or 12-yd. dolly
ket manager - crawlers, John Dee