Case Construction Equipment's Case 721F, 821F, and 921F wheel loaders evolved from its E Series product line. The F Series wheel loaders are powered by an SCR-equipped 6.7-L Tier 4 Interim engine, rated at 179, 211, and 242 hp (133, 158, and 180 kW).
An optional five-speed transmission with a lockup torque converter, open-differential axles, and advanced system programming contributes to fuel savings, according to Tim O’Brien, Marketing Manager, Case CE. “The [new] transmission offers an 8% increase in fuel savings over a comparably equipped model with a four-speed transmission.”
Standard limited-slip front and rear axles are said to provide traction in all conditions, particularly in noncompacted surfaces, such as gravel.
A new dual-mode shutdown feature also helps to maximize fuel economy while monitoring vital engine components. Using the fuel-saver mode, the operator can limit the time the machine will idle. The desired shutdown time can be set in five-minute increments.
The 921F features a 4.75-yd³ (3.6-m³) bucket, a new size class for Case. With greater tipping load weight and bucket breakout force relative to its payload, the 921F is suited for aggregate stockpiling and high-production truck-loading applications. Other bucket capacities are 3.25 yd³ (2.5 m³) for the 721F and 4.25 yd³ (3.25 m³) for the 821F.
Joystick steering enables F Series operators to move with ease between the joystick and steering wheel for high-production operations. An optional two-lever hydraulic control system is available. The Case PowerInch feature lets the operator quickly and precisely approach targets in tight areas, regardless of engine speed. PowerInch maintains high rpms to maximize hydraulic power and control.
Several new comfort and safety features are expected to boost operator productivity, including a cab with an unobstructed view to both edges of the bucket or attachment, while a wide window and sloping hood provide clear vision to the rear.
Also, a new rearview, wide-angle camera with an adjustable color monitor is available. The camera option nearly eliminates blind spots and is helpful for jobs that require operating around other machines or workers.
As in previous models, the F Series wheel loaders include an advanced instrument cluster to enable operators to adjust various functions without relying on a service technician. The loaders also offer ergonomically placed controls and a new heated cloth seat with seven adjustment modes.
Case offers a range of attachments for the F Series, including pallet forks, brooms, jib booms, buckets, and weigh-load systems. Buckets are available with bucket teeth or bolt-on edges. In addition to the standard Z-bar loader, Case offers XR extended-reach models and a 721E XT tool-carrier model.