Equipment World Digital Magazine
Issue link: https://read.dmtmag.com/i/85686
product report | by Marcia Gruver Doyle CB will add its new Ecomax engine (see Reporter story on page 11) to a number of backhoe, excava- tor and telehandler models. The company also announced three new wheel loader models. The Tier 4 Interim Ecomax, using in-cylinder technologies, does not require a diesel particulate filter or diesel emission fluid, runs on standard engine oil, and can be recalibrated to run in countries that do not have an ultra low sulfur diesel infrastructure in place. Ecomax engine revs up JCB lineups J 3CX and 4CX backhoes, which come with 74-horsepower (91-horsepower optional) and 109-horsepower engines, offer 2 to 5 percent fuel economy compared to previ- ous models. All 91- and 109-horsepower machines have a variable flow hydraulic pump as standard, delivering 43.5 gallons per minute of flow. This pump matches flow to de- mand, reducing fuel consumption. Peak flow, however, is up by 32 percent on 74-horsepower machines, 14 percent on 91-horsepower engines and 7 percent on the 109-horse- power backhoes. The variable displacement hydraulic sys- tem, says JCB, can offer up to 30 percent faster cycle times. Loadall telescopic handlers now have three avail- able engine ratings, 74 horsepower (aimed at rental markets), 108 horsepower and 125 horsepower. JCB says the 74-horsepower units offer 6 percent more torque and 5 percent more low rev power than the previous Tier 3 machines. The 108-horsepower units, expected to appeal to contractors, offer 15 percent more torque and a 10 percent boost to low rev power. A revised engine cover and pod (see photo) now direct cooling air from the top of the front canopy, around the engine and through the cooling pack, to exit through new vents at the top of the rear of the canopy. This prevents air disturbing dust and debris on the ground below the engine. The JS145 excavator has color-coded working modes on the cab monitor designed to promote working within the green "economy zone." Modes are selected through a single dial, replacing engine speed selector – turn the dial, the engine speed increases and the correspond- ing work mode is automatically selected. JCB says a revised hydraulic system in addition to the new engine gives the machine a 10 percent fuel savings, compared to the previous model. In-cab levels are now 70 deci- bels, down 4 percent. EquipmentWorld.com | August 2012 49