Use it like a real elevator and do not prank calling the security guard !!! Warning : Loud noises !
Credits to all. The elevator is holeless telescoping hydraulic and the pump got replaced by GMV Martini during the modernization by Schindler in 2013. The elevator was worn out, because this one was very badly maintained by KCBL-Ivanov since 2008. But, since 2013, the maintainer was Schindler and they decides to modernize it. But, now, the maintainer is Hissgruppen.
