English to Croatian Tech/Engineering Construction / Civil Engineering dizalica

http://www.heavyliftnews.com/news/terex-crane-configuration-...
The superlift split tray is used when erecting the main boom. Once the main boom is set up, the counterweight can simply be uncoupled. After the crane has done its work, the counterweight that was originally removed can be quickly put back in place to lower the main boom. This quick-coupling technology eliminated the work involved in rearranging counterweights for the Hofmann team, which reduced the setup time, eliminated the need for an assist crane, and made it possible to work with fewer people.