New heavy dumper features cab and safety refinements and marks brand’s return to the 40t-class size category
Caterpillar has re-introduced the 40t size class in its articulated dumper line-up with the launch of the new Cat 740 GC articulated dump truck (ADT).
The global construction equipment leader said in a statement that the new model is designed to incorporate the features and performance of models currently in the ADT line-up, including new controls, transmission-protection features, hoist-assist system, advanced traction-control system, stability-assist system, and a fuel-saving ECO mode.
In addition, the 740 GC also incorporates the latest automatic retarder-control system, which requires no input from the operator, resulting in greater operating efficiency. For added control, the new model also features a ‘wait-brake’, which temporarily applies the service brakes during pauses in the work cycle, reducing operator effort and fatigue. Also, a hill-start system automatically holds the machine on grades, allowing the operator to move from the service brake to the throttle with no roll-back on slopes.
Cat also said that the driver and cab environment of the new ADT has received a lot of attention. The 740 GC cab features the new ‘external spinal-ROPS’, which is found on other Cat ADTs in the range. This cab incorporates a rear-quarter glass that eliminates a structural pillar, resulting in enhanced rear visibility. Also, a ‘wake-up’ feature initiates machine displays when the door is opened. The door itself is lighter and stronger than previous designs and more effectively seals against dust infiltration. The overall cab design results in interior sound levels of 72 dB(A).
Useful for the Middle East, an optional infrared glass reduces solar heating inside the cab, and left- and right-hand sliding windows increase ventilation, while also facilitating communication with workers and the loader operator. An automatic climate-control (HVAC) system positions more vents above and behind the operator for increased cooling efficiency. An optional heated/cooled seat provides added adjustments that allow operators to ‘dial in’ personal comfort settings, and a second seat with added cushioning now uses a flip-up/flip-down design to provide additional cab storage.
The new 740 GC uses the Cat C15 ACERT engine available in configurations to meet emission standards of both highly regulated (HRC) markets and less regulated (LRC) countries such as in the Middle East. For the LRC markets the engine produces 449hp. The three-axle ADT’s transmission is the Cat CX38B and its drive configuration is 6X6.