the worker adjusts the gear changes in the walk-behind tractor before running. copy space for text, transmission

adjustment adjusts agriculture assembly attachments autumn breakingin control copy cottager cultivation cultivator cutter depth downshift engine farming gear green ground hitch industry job maintenance milling model motor multifunctional orange petrol plow power pto reducer reduction resident running runningin setting shift soil space start summer sun text tractor transmission twowheel unit walk-behind walkbehind walking worker working