Caterpillar has launched its new Cat 14M3 motor grader said to build on the solid design of predecessor models with a larger engine, increased fuel efficiency, improved machine balance, enhanced transmission performance, advanced electro-hydraulic steering, more powerful telematics and added operator-safety/convenience features.
The Cat 14M3 is powered by the C13 ACERT engine, replacing the C11 motor in predecessor models. It features an ECO mode that boosts fuel economy by limiting the engine’s high-idle speed to 1 750 rpm in working gears, while maintaining machine power. ECO-mode savings are especially significant when working at high idle in light to moderate applications in gears 3R to 5F.
The standard Optimised Variable Horsepower system is designed to closely match power requirements in all gears, and the Consistent-Power-to-Ground feature automatically changes engine power levels to compensate for cooling-fan losses, resulting in consistent power delivery in all ambient temperatures and working conditions. The C13 ACERT engine is available in three versions to suit emissions standards in the area of use.
The 14M3’s 8F/6R power-shift transmission has a wide operating range for application flexibility and maximum productivity. The Cat Advanced Productivity Electronic Control System enhances range-to-range shifting by maintaining consistent torque flow and smoothing shift points. The Shuttle-Shift feature enables directional shifts without slowing engine speed or engaging the inching pedal. An Autoshift system allows programming shift points to best match requirements of specific applications for maximum fuel savings.
An engine-over-speed-protection system prevents downshifting at excessive ground speeds, and the standard automatic differential lock disengages during turns and re-engages during straight travel, simplifying operation and protecting the power train.
The 14M3’s load-sensing hydraulic system incorporates advanced electro-hydraulic operation for precise, responsive implement control. Proportional Priority Pressure-Compensating valves provide different flow rates for the head and rod ends of the cylinders, further ensuring consistent, predictable control. Balanced, proportional hydraulic flow enables all implements to operate simultaneously with consistent speed at consistent engine speeds.
Blade-float features allow the entire blade to follow ground contour, or the toe of the blade can follow a hard surface, while the remaining cylinder is controlled manually. A 4,3 m moldboard is standard, while a 4,9 m version is optional. A range of cutting edges and bits are available, as are a three-shank ripper, scarifier, and snow plow and snow-wing options.
Meanwhile, a fully scalable, factory integrated Cat GRADE with Cross Slope system allows operators to easily maintain desired cross slope by automatically controlling one side of the blade. In addition, newly patented Stable Grade and Auto Articulation technologies improve operator performance and productivity. Stable Grade detects and reduces machine bounce during operation while Auto Articulation improves maneuverability and performance in tight working spaces and enhances operator comfort.