a construction vehicle tractor control gear and levers shift

control controls lever levers gear gears shift shifting operate operating operation steering work worker workers operator operators seat seats drive driver drivers partial view parts small smaller mini construction site sites vehicles vehicle equipment tractor tractors track tracks tracked wheel wheels dig digging terrain mud muddy soil earth excavator excavators skid steer steers crane cranes backhoe bulldozer bulldozers dump truck trucks concrete cement mixer mixing compactor compactors manual tough hard labor labour heavy duty industrial application applications