The 789 Caterpillar mining truck replaces the current 789 Tier F-4 version. The rigid-frame haul truck has an advanced powertrain that the company says increases engine life by 12 percent and delivers better shifting and acceleration.
Rated payload is 213 tons, and rated operating weight is 715,000 pounds. Powered by a Cat 3516E engine offers two power selections: 1,900 or 2,100 horsepower. Engine design changes include modifications to the camshaft and piston for optimal fuel efficiency, and structural improvements to the cylinder head and crankshaft to deliver 12 percent more durability than the 3516C, according to the company. Torque has been increased by 23 percent.
Advanced Power Electronic Control Strategy (APECS) transmission maintains forward momentum and torque while shifting with optimum gear selection resulting in faster acceleration. More continuous torque and rimpull delivers more power to the ground, making it possible to use a higher gear on grade to optimize fuel efficiency.
Next-generation cab is 17 percent wider, and a fully adjustable center console provides 34 percent more operator space. Two 10-inch screen consolidate all machine data, control, and guidance information.
Speed coaching provides operators real-time feedback on truck operation. The truck has a 360-degree surround view camera with object detection to alert operators to hazards within the immediate vicinity.
Fully integrated Cat electronics on the 789 includes 100 Mbps, two-wire ethernet connectivity for faster data transfer to improve access to information. The future-proof technology platform includes every 789 being factory-equipped with Cat Product Link Elite with standard connectivity via cellular 4G/LTE and available cellular/satellite radio for reliable data transfer.
A new telematics platform promotes greater data acquisition and faster transmission to locally hosted or cloud-based applications such as Cat MineStar Solutions. Available MineStar Fleet, Detect and Health Equipment Insights, along with standard haul road analytics, help to improve operator performance, maintenance and machine life.
The new modular HVAC (heating, ventilation and air conditioning) system improves reliability and consolidates components, so the entire system can be removed and replaced quickly. Shortening engine removal and installation time, the modular radiator enables rebuilds to be completed off the truck to reduce downtime.
The 789’s next generation of enhanced serviceability incorporates extended-interval filters with ground-level access, grouped service points and a new centralized service center option. It features an extended 12,000-hour coolant life and double the hydraulic and transmission filter life to 1,000 hours to reduce service time. New Remote Flash and Remote Troubleshoot help to further improve machine uptime and performance by instantly providing access to the latest software updates and making it possible to remotely troubleshoot the truck.
Superior braking and retarding control for the 789 is delivered by Caterpillar’s patented, oil-cooled, multiple disc brakes to provide immediate, fade-resistant braking and retarding. The next gen cab design integrates the rollover protective structure (ROPS), and the operator is protected by five-sided ROPS/FOPS (falling-object protective structure) coverage. Wide-angle mirrors plus a birds-eye view offered by Cat Vision 360 improves visibility in the 789. Part of the MineStar suite of solutions, the available Driver Safety System alerts the operator if fatigue or distraction is detected.
