build construcion cutout fork lift fork truck forklift isolated lift truck machine renovation tow-motor tractor vehicle work bags cargo crane heavy lift loaded lorry transport transporting truck auto car construction container elevator path travel weight equipment factory freight handling industry lifting loader loading machinery moving storehouse transportation unloading warehouse drill drilling mobile depot magazine stack stock store storeroom angles arm danger dangerous digger elevated elevation external height heights high hydraulics perspectives post-hole-digger power power-pole raised raising replacement replacing risks risky safety service spiraling spiralling trucks up-high vehicles electricity on-high power-lines repair-crew replace workman workmen basket cherry-picker Harness insulators raised-platform safety-harness built cable development hook industrial metal steel urban