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Read articles →This is a John Deere how-to demo on operating a flex wing rotary cutter (E12, 12-foot width) paired with a 5100M utility tractor, focused specifically on roadside fence-line mowing over uneven ground. It covers setting cutting height with spacers, how the flexing wings follow sloped terrain, pre-mow safety checks for hidden hazards, and post-job deck cleaning. It's a short instructional piece for owners wanting operating tips, not a walkaround or spec review.
Produced with John Deere as an official instructional video, so it's brand-driven guidance rather than independent owner testing.
On level ground, use spacers on the hydraulic cylinder's piston stops to adjust blade height from 8 inches down to 4 inches, or anywhere in between.
The wings flex up and down above and below level, letting them drop and cut vegetation nearly parallel to sloping ground while holding a consistent cutting height.
Walk the area first to check for hidden stumps, rocks, poles, or dead animals, and keep anyone not operating the tractor away since material can be thrown out.
Clean off the deck before storing the machine to prevent corrosion, using either a broom or a high-powered blower.
