After three years of testing and development, the M-Series is now on the market.
The new additions to the M-Series include the midsized 800M and 800MH, which both have reduced tail swing, and the 900M and 900MH, which are large machines. John Deere made use of what they call a Customer Advocate Group (CAG), consisting of loggers from around the world, to provide insights into what they need from these machines. The 800M and 800MH share many components, such as the undercarriage, engine, boom and cab, with the 900M and 900MH machines. This is intended to simplify maintenance and repairs.
Improvements include a Rapid Cycle System (RCS) which combines automated felling-head arm cycling with simple boom control, which reduces operator fatigue while increasing productivity. The RCS system can be set to individual skill levels and specific harvesting conditions, which can range from large single-tree harvesting to high-speed, multi-stem cutting. Multiple operator settings can be saved. The RCS can be engaged or disengaged with a touch of a button. RCS is standard on the 800M and 800MH machines, and optional on the 900M and 900MH machines.
The M-Series cabs are more spacious than before. The armrests are fully adjustable and provide fingertip control of all machine functions. The seat is air conditioned to provide daylong operator comfort in the climate controlled cab. The front and side windows have floor to ceiling vision. Together with the overhead skylight, the operator has 44 % more visibility.
Field-proven booms from the 900M and 900MH are used. They have thick plates and large pins and bushings for extended life. Boom reliability is further increased by a through-nose harvester head plumbing option, by an optional undercarriage-mounted toolbox, an extended fuel tank size on the 800M, and having John Deere ForestSight and Ultimate Uptime as an option. Source: www.deere.com