CONSTRUCTION EQUIPMENT
ers is provided through a four-speed
ZF hydromechanical transmission
designed for Case. The transmission
has four power modes — Economy,
Standard, Auto and Max — designed
to give operators flexibility in matching
engine power to application, to produce high productivity, fuel efficiency
and reduced tire wear, Case said.
The new transmission adjusts the
amount of power delivered to the
ground depending on travel speed.
It integrates hydrostatic pumps and
motors, allowing them to work at lower
speed for quick response, smoothness and efficiency, Case said. At
higher speeds, the power transmission is mixed with mechanical gears.
At the highest speed, Case said, the
mechanical portion of the transmission is doing most of the work in
direct-drive mode, along with a lockup torque converter. Travel speed is
23. 2 mph.
New, upgraded axles have been
integrated with a standard axle cooling system and an optional hydraulically locking front differential has
been added for heavy construction
applications.
The machines have a standard
Z-bar linkage and can be specified as
extended reach models. The extended reach options add 21 in. of hinge
pin height to the 1021F and 15 in. to
the 1121F model.
Standard specifications for the
1021F wheel loader include a 5. 5
cu.yd. bucket with a dump height of
121 in. The larger 1121F model has
a 6. 25 cu.yd. bucket capacity with a
dump height of 126 in.
With the new design of the F Series
1021F and 1121F loaders, Case said
it engineered optimized stability into
the machines, including longer wheelbases and lower centers of gravity.
Machine stability is also enhanced with
a new placement of the fuel tank and
by repositioning of the cooling module.
The cab offers an unobstructed
view to both edges of the bucket or
attachment, while a wider window
and sloping hood provide clear vision
to the rear. Additional visibility is pro-
“At a busy quarry, aggregate pit or
construction job site, it’s important
to have a machine with visibility to
all corners of the vehicle,” O’Brien
said. “The Case F Series wheel load-
ers offer rear visibility and a pan-
oramic view to the front and sides for
enhanced operator confidence and
productivity.”
vided with an optional rearview, wide-
angle camera. The camera provides
live video to an adjustable 7 in. color
monitor in the cab, eliminating blind
spots when operating around other
machines or workers, Case said.
Case manufactures its wheel loaders at its plant in Fargo, N.D. dp
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2570 Beverly Dr. #128, Aurora, IL 60502 T 630.236.3500
June 2011 DIESEL PROGRESS NORTH AMERICAN EDITION 95
SEE DIRECTLINK WWW.DIESELPROGRESS.COM
