Pit & Quarry, February 2017

EXCAVATING Excavator features maintenance and electronic updates With a redesigned fully electro hydraulic control system the VOLVO 75 ton EC750E creates a smooth pump flow as operators move between modes The excavator is the companys largest North American excavator to date and its 516 hp Tier 4 Final engine provides an 11 percent horsepower increase over the EC700CL Steel strips are welded under the arm and a built in heavy duty plate is featured on the underside of the machine Filters are grouped and accessible via walkways on either side of the machine while greasing points are grouped and accessible from one position New features include an optional auto lubrication system which supplies the correct lubrication to all greasing points except the undercarriage at predetermined time intervals Also present is Volvos ECO mode system which optimizes the hydraulic system to reduce loss of flow and pressure when operators select the work mode idle fine general or heavy Other updates include a reduced number of switch controls within the cab 8 in LCD display side view camera and brighter LED work lights Handrails have also been made more visible and anti punch slip plates provide superior grip and safety www volvoce com Frontless hydraulic shovels tackle specialty applications Accommodating larger specialty front attachments the CAT 6015B to 6090 hydraulic shovels are available in frontless pedestal mounted applications Power units for these machines range from 606 kW to 3360 kW 813 hp to 4500 hp Specialty applications served with these machines include heavy and marine construction dredging and coastal protection quarry and aggregate are available to accommodate the application Frontless hydraulic shovels are typically combined with non standard front attachments and work tools They are available in diesel or AC power to further expand flexibility Additionally upper only arrangements are available for permanent installation on a pedestal frequently used for dredging and material handling www cat com Machine upgraded to meet engine regulations configurations for mobile and bulk material handling and demolition Several different arrangements Updated to meet emissions standards the JOHN DEERE 670G LC excavator is now equipped with a Tier 4 Final engine The 463 hp production class model has maintenance features like a battery disconnect switch spin on fuel filters and two additional water separators Engine and hydraulic oil sample ports allow for proactive maintenance checks Also an improved step position on the track frame and handrails on the upper structure provide multiple points of contact when accessing the engine compartment Operators have access to a refined monitor that employs a turn and tap rotary control as well The 670G LC excavator includes smart features like a Powerwise III engine hydraulic management system with multiple productivity modes The excavator also has a large tank in the cooling system that enhances air pursing provides make up fluid when needed and improves overall cooling efficiency Job applications for this excavator include big highways underground work deeper water and sewer projects www johndeere com 28 PIT QUARRY February 2017 pitandquarry com