bed big cab carry construction dump equipment haul heavy heavy-duty load truck vehicle white work build duty flatten isolated machine road rollers steamroller 9 volt 9V Battery electricity electronics heavy duty negative plugs positive power front hub machinery rubber tire traction tyre wheel tractor construction machinery construction people construction site crane crew heavy objects HSE lifting machines mobile crane operating people at work safety safety precaution supervising working construction equipment construction vehicle danger Dirt equipment hydraulics hydraulics mobility movement strength alp alpine hill landscape maintenance mountain mountains rock rocks shovel ski snow sports transportation appearance confined display displayed energy historical history powerful rails railway railway-yard restoration restoration-yard rust rusty trains wheels hammer army bumps decayed deck floor iron pattern plate regular scratched scratches shabby sheet steel texture thick worn chains gears marshalling-yard motion move moving repair repair-work repairs