Caterpillar expands ADT lineup

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  • Earthmovers & Exacavators

Caterpillar has expanded its articulated dump truck (ADT) lineup with the re-introduction of the 36-tonne Cat 740 GC.

Cat-740-GC-articulated-dump-truck

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Cat says the 740 GC incorporates the proven features and performance of models currently in the ADT lineup, including new controls, transmission-protection features, hoist-assist system, advanced traction-control system, stability-assist system, and a fuel-saving ECO mode.

The big dumper weighs in at 32 tonnes and has a rated payload capacity of just over 36 tonnes.

The 740 GC also incorporates the latest automatic retarder-control system, which requires no input from the operator, resulting in greater operating efficiency.  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.

The 740 GC cab uses an ‘external spinal-ROPS’ design, which is found on other Cat ADTs in the range. This cab incorporates a rear-quarter glass that eliminates a structural pillar, resulting in improved 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).

A combined transmission-and-hoist lever provides single-lever control of gear selection and body-hoisting functions to reduce operator effort and to automate repetitive actions.

A mode switch in the cab allows operators to choose either manual or assisted-hoisting control, with the latter allowing automatic application of the wait brake, shifting of the transmission to neutral, and raising of the body to maximum angle at engine high idle when the hoist is momentarily flicked to the "raise position".

The assisted-hoisting mode also allows automatic return of the body to the lowered position, when the hoist control is momentarily flicked to the ‘lower’ position.

In addition, a shift-protection system brings the truck to a safe stop if a directional shift is made while the truck is moving.

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