Bobcat has made significant upgrades to its 700 and 800 skid-steer loaders, compact track loaders, and all-wheel steer loader. These changes incorporate greater machine performance through enhancements such as increased breakout and lift forces, better horsepower management, shorter cycle times, and simplified display navigation, according to the company.
Upgraded loader features apply key interim Tier 4 (iT4) technologies to provide enhanced loader functionality and reporting for machines with horsepower ranging from 75 to 174.
Bobcat 800 frame-size loaders (S850 and T870) have been equipped with increased hydraulic pressures and breakout and lift forces, resulting in shortened digging cycles. The increased lift and tilt forces on the S850 and T870 will improve machine efficiency in lifting pallets, concrete pieces and wet clay or dirt, and rolling them back to the carry position with less machine effort. For example, the iT4-equipped T870 will have nearly 17% more lift breakout force than the Tier 3 model, according to the company.
The new iT4 engines can interpret information that will allow horsepower management — a standard feature of Bobcat Selectable Joystick Controls — to be based on engine torque instead of engine rpm. This minimizes engine stalling and provides additional travel speed at low-mid engine rpm.
A new hydraulic control valve allows use of the tilt function — rolling out or rolling back an attachment — regardless of auxiliary system pressure. This change makes it easier to operate attachments like planers, wheel saws, grapples, tillers, etc.
The 5-inch, full-color LCD screen now offers a display screen titled “Machine Performance,” which provides three functions — viewed only by owner-level individuals — to assist with monitoring key data to determine productivity rates by operators and other project metrics. Those functions include user login information, overall job statistics and user job statistics.
As with all iT4 emissions controls technologies, only ultra-low-sulfur diesel (ULSD) fuel may be used in iT4 compliant 700 and 800 frame-size loaders.