John Deere’s G-Series Motor Graders now meet Final Tier 4 emissions standards with the implementation of a John Deere PowerTech EPA Final Tier 4 engine. Mike Ackerman, product marketing manager, motor graders, John Deere Construction & Forestry, said the new machines all come with better all-around lighting, a more modern radio, an improved rearview camera with a dedicated monitor, and upgraded cab features.

The G-Series consists of 12 models (670G/GP, 672G/GP, 770G/GP, 772G/GP, 870G/GP, 872G/GP) with net horsepower ranging from 220 to 287. Six of the units (those models ending in two: i.e. 872G) feature six-wheel drive, which gives operators increased traction, the ability to get more work done in fewer blading passes, and a 30% increase in blade pull.

All motor grader models weigh the same as their Interim Tier 4 predecessors. In addition, there is no sacrifice to visibility going from an Interim Tier 4 to Final Tier 4 engine. The operator can easily view the ripper while the machine is in motion. The direct-drive transmission with event-based shifting continues to offer smooth gear and direction changes.

Diesel particulate filter (DPF) cleaning still occurs automatically with no impact to machine operation. Also, after extensive testing, John Deere’s DPF can go up to 15,000 hours before ash removal.