_{Cat 789D}

The Cat six-speed planetary power shift transmission is matched with the direct-injection 3516 diesel engine to deliver constant power over a wide range of operating speeds.

The 789D frame uses a box-section design, incorporating two forgings and 21 castings in high stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight.

Through the use of the fully Integrated Object Detection System, RADAR AND CAMERA, the operator can receive both audible and visual indications of detected objects. In addition, the operators right hand view is improved due to relocation of the air tank lower on the chassis.

The Cat oil-cooled braking system delivers reliable performance and control in the most extreme haul road conditions. The integrated system combines the service, secondary, parking brake and retarding functions in the same robust system for optimum braking efficiency.

1) Cat “X” Body - The X body is a heavy duty body configured with a variety of liner options to meet site specific requirements of a mine. Like the Dual Slope - the X body is designed for durability across a range of harsh applications. 2) Mine Specific Body (MSD II) - For mature mines with good operational and maintenance practices, the lighter weight MSD II (Mine Specific Design) body is available in several sizes. It is a customer/site specific body that is designed to maximize performance. The MSD II is designed to maximize payload, provide good durability and can be configured with a variety of liner options to meet the specific requirements of the mine. 3) Gateless Coal Body - This specialized high volume body, available in several sizes, is targeted at dedicated coal haulage applications with minimal impact. The kicked up floor design eliminates the tailgate and gives the volume required to meet target payload. 4) Combination Body - This is a multi-purpose, high volume body for light density, well fragmented material. Based off of the dual slope design for customers who need a flexible body to haul light ore (such as coal) and light, well fragmented overburden. 5) Dual Slope Body - The original standard body, the Dual Slope body, provides excellent load retention, maintains a low center of gravity with optimum load distribution, reduces shock loading and is available in lined and unlined configurations. The Dual Slope body is intended for tough applications including greenfield sites and contracting mines.

Production Management enhances truck/loading tool effectiveness, improves fleet productivity and helps extend the life of truck frames, tires, rims and power train components, while lowering operating and maintenance cost.

Max Payload Speed Manager is a feature that aids in managing the Cat 10/10/20 Overload Policy. Based on target payload weight and overload settings, the VIMS system logs and warns the operator when the truck reaches overload after 2nd gear reweigh. The truck will be limited to 2nd gear at 1,750 rpm, and the automatic retarder speed setting is reduced to 1,750 rpm until the load is dumped. Payload management enables the manager to enhance truck/loading tool effectiveness and productivity levels by preventing overloads that can cause damage to component life and affect operator safety.

Cat® MineStar™ System encompasses a comprehensive suite of mining technologies grouped within a number of configurable capability sets, including Fleet, Terrain, Detect, Health, and Command. Object Detection is part of the Detect capability set and provides customers with a scalable system to aid in the awareness of machines and other objects in the near vicinity of working equipment. Object Detection systems are factory installed as standard equipment on 789D mining trucks. The fully integrated Object Detection system, RADAR AND CAMERA, provides both audible and visual indications of detected objects using radars which surround the machine, along with cameras on each side to allow the operator to confirm the detected object. The cameras supplement the radar alerts and are selectable by touch screen menus through an intuitive interface.

Easy access to daily service points simplifies servicing and reduces time spent on regular maintenance procedures. Enhanced serviceability and 500-hour service intervals are designed to increase machine availability and productivity.

Provides access to engine, steering hydraulic tank, and battery compartment.