CAT M Series 2 Motor Graders deliver more value for the customers
23 November 2011
The newest motor grader models from Caterpillar, the 140M2 and 160M2, along with their all-wheel-drive (AWD) counterparts, the 140M2 AWD and 160M2 AWD, are equipped with clean-burning, fuel-efficient engines meeting European Union Stage IIIB emission standards. The new models also deliver added value for the customer by lowering operating costs and enhancing productivity, operator convenience and serviceability. M Series 2 models continue to improve on the legacy of quality set by the original M Series and are designed for a broad range of tasks, including heavy blade work, road maintenance, ripping and precision-finishing applications.The new M Series 2 models all use the CAT C9.3 ACERT engine with Variable Horse Power (VHP), and all have a wider net-variable-horsepower range than their M Series predecessors. The 140M2 and 160M2 have power ranges of 144 kW to 181 kW and 159 kW to 196 kW respectively. Net power ratings for the 140M2 AWD and 160M2 AWD are 151 kW to 181 kW and 166 kW to 196 kW, respectively.
At the heart of the M Series 2 design is the Cat control system, which uses two electronic joysticks to provide complete, precise control of the machine. The control system results in nearly 80 percent fewer hand and wrist movements compared to conventional motor-grader controls; the net result is enhanced operator comfort and efficiency. The intuitive design helps both new and experienced operators be more productive.
Operators can closely match machine ground speed to the operating situation with the 8F/6R direct-drive powershift transmission, which uses the Cat Electronic Clutch Pressure Control system to modulate gear changes and Controlled Throttle Shifting for smooth directional changes without the inching pedal. Programmable Autoshift lets the operator match shift parameters to the application.
A manually controlled differential lock improves traction in adverse ground conditions. When engaged, a standard Automatic Differential Lock system locks and unlocks the differential as required to optimize traction while protecting the tandem chains and differential from possible damage. Multi-disc brakes at each tandem wheel provide large braking surfaces for sure stops and long brake life.
The new M Series 2 models are equipped with an advanced electro-hydraulic system for implement control, featuring an independent oil supply to prevent contamination from other systems and to assure proper cooling for extended component life. The load-sensing hydraulic system delivers consistent, predictable cylinder response and provides balanced flow, allowing implements to be used simultaneously with minimal effect on implement and engine speeds.
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