In general, overhaul includes total disassembly of machine, exchange of bearings, seals, worn gear wheels, spindles, reinforcing of guideways with hardened steel plates (or their regrinding, if these are already on the machine), and their grouting with plastic material, complete machine geometry, replacement of covers, new electric installation and surface treatment. A necessary prerequisite is meeting the requirements of current legal regulations and technical standards, mainly in relation to the operational safety of the machine.
Besides standard works, associated with overhauls, the engine lubrication systems of most machines is reconstructed, and modern metering systems are applied. The scope of works is individual on every machine, depending on the specific type, model or customer requirement.
In no case these machines are upgraded in the sense of reconstruction to CNC controlled machines.