Conversion and overhaul of hydraulic cylinders at the lock Limbach

… pieces). This includes grinding, dechroming and rechroming of the piston rods including all necessary work. Welding of damaged areas is also part of the scope of the order. - make adjustments to the piston rods of the gate cylinders (including enlarging and extending the core hole) in order to accommodate the new WMS including magnets and pressure pipes. - Overhaul of guides, pistons and installation parts. This includes grinding and polishing of wear marks. If necessary, parts must also be renewed. - Design and manufacture of mountings for the pressure pipes and WMS heads, the new WMS on the door cylinder shelves. The WMS will be able to be changed oil-free in the future. But also the pressure pipes should be changeable (not oil-free) - Design and manufacture of cover hoods in IP68 for the door cylinders including adaptation work on the cylinder bases, which become necessary for the installation of the new hoods. - make adjustments to the door cylinder floors in order to be able to take up the pressure pipes oil-tight on the one hand, on the other hand to be able to mount the pipes and WMS heads on the other hand and lastly to be able to take up the new covers again. - Dismantling of hydraulic cylinders including disposal of old hydraulic oil. - Testing of hydraulic cylinders including preparation and handover of test reports with photo documentation to the working party. - Conversion of the master cylinders to the new WMS including ring magnets and pressure pipes - Replacement of rod and piston seals on all cylinders - Repair damaged parts of the coatings or corrosion points on the cylinders and attachments locally. - Renewal of all open screws on all cylinders during refurbishment - Complete reassembly of the now overhauled cylinders, which includes, among other things, the replacement of the seals, guides, piston rods, pistons, valve blocks including valves, the new WMS including all accessories, the old WMS for the ULV cylinders, the covers, etc. - Filling the cylinders with new hydraulic oil - Execution of pressure and functional tests on the cylinders and the new WMS of the gate cylinders including transfer of detailed protocols - Professional disposal of the old parts and the old hydraulic oil. - Transport and return transport of 3 x 4 hydraulic cylinders (incl. accessories) by freight forwarder from AG to AN - Transport and return transport of the hydraulic drives provided by the AG, including the control unit, by forwarding agent from the AG to the AN. - Transport of the spare parts to be handed over at the end by freight forwarder from the AN to the AG