IN response to customer demand for improved hydraulic response and reliability, Volvo Construction Equipment (VCE), a leading Sweden-based construction equipment specialist, has introduced a new hydraulic system along with its B-series motor graders.

At the heart of the system is a 284 lpm axial piston hydraulic pump that provides increased efficiency and optimum pump life.
The G710B-series grader is part of a new generation of machines that offers enhanced productivity, fuel efficiency, servicing access, operating control, and operator comfort, says Brian Lowe, product and communications manager of Volvo Motor Graders.
Describing the B-series, he says: “Powered by Volvo D7 (436 cu in) and Volvo D10 (587 cu in) EU Stage II and US EPA Tier II-compliant engines, the Volvo B-Series was developed not only for optimum fuel efficiency and low emissions, but also to provide high torque at low rpm for precise power control at all speeds in all grading applications.
“The Volvo CE B-Series line of motor graders comprises five tandem-drive and two all-wheel drive models, all of which are suited to public and private sector tasks. The tandem drive machines range in operating weight from 15,150 kg to 19,618 kg and engine output from 179 hp to 243 hp. The all-wheel drive machines’ operating weight ranges from 16,046 kg to 16,639 kg with an engine output ranging from 221 hp to 243 hp.”
“The flat torque curve delivered by Volvo engines reduces the need for downshifting, allowing easier operation. Cooling of the Volvo motor grader engines is accomplished with a hydraulically-driven, thermostatically-controlled, variable-speed fan that regulates fan speed depending on cooling demand, to optimise power and to further improve fuel economy,” he says.
Volvo G700B-Series motor graders can also meet the most demanding requirements of fine grade contractors. Combining the advantages of the high torque capability of the Volvo engines with the large variable displacement hydraulic pump allowing the operator to reduce first-gear ground speed by operating at a lower rpm and retain full hydraulic control. This permits precise mouldboard positioning to match the grade requirement, he says.
“Along with the attributes of superior fuel efficiency and productivity, Volvo’s equipment come with a backing of excellent service and spare parts support from its worldwide dealer network.
Commenting on Volvo’s machines, a spokesman for the company says: “Volvo graders are the most productive and reliable graders on the market. They are the perfect combination of advanced technology and our more than 125 years of grader experience. Whether you’re building a road, cutting a ditch, fine grading, or clearing the way after a snowstorm, there’s a Volvo grader for your job.”