Bayerische Oberlandbahn: Obsolescence management for passenger train inspection and overhaul Tough application Complete hydraulic system mainte- Perfect Service and nance and refit provided direct from the manufacturer Back on Track Ingenious solution Trains not only provide maximum safety for the passengers, but also Reduced downtime due to optimiza- feature robust technology in order to withstand the toughest weather tion of spare part availability and conditions. As the original equipment manufacturer, Bosch Rexroth efficient obsolescence management manages the overhaul inspection of all hydraulic systems built into the 17 “Integral” Diesel trains of the Bayerische Oberlandbahn (BOB). Wear Exactly items are replaced and all essential components thoroughly „We attach the greatest importance to serviced or updated – the entire process does not take longer than six minimal downtime and the fulfillment weeks per train. of all quality standards. Bosch Rexroth supports our activities in the best Bayerische Oberlandbahn (BOB) operates the picturesque, 120 km long railroad possible way.“ between Munich, Holzkirchen, Bayrischzell, Tegernsee, and Lenggries in Germany. Roland Kerschdorfer, BOB The 17 Diesel trains of the “Integral” series were put into service in the early 1990s. They are currently undergoing their second overhaul inspection at the railway mainte- nance depot Lenggries. One train after another is disassembled into its individual parts. The hydraulic components are transferred to the Bosch Rexroth Service Center in Pas- ching for maintenance. They include the air-suspended, hydraulically adjustable wheel sets and the two ram cylinders, which are designed to absorb the buffer impact in case of a crash. Service, retrofitting, and reduced life-cycle costs The plant at Pasching attends to the procurement of original spare parts. It special- izes in the repair and the field service of industrial and mobile hydraulics as well as electric drives and control systems. Bosch Rexroth’s REMAN program (“remanufac- turing”) ensures reliable availability of all essential components and also provides Solved with efficient obsolescence management: parts which are no longer available can be f Uniform standards for inspection replaced with fully compatible types. The downtime during the overhaul inspection is processes and workshop also used for the extensive modernization of the doors or the interior fittings of the equipment car bodies. Repaired components have to meet the same strict testing requirements f REMAN program for reliable as brand-new production parts. availability of key components .