REPAIR SERVICE FOR VOITH KE-553 GEAR-UNITS ON SERIES 449 SELF-PROPELLED TRAINS COFEMA COFEMA ADMIN2018-12-11T09:57:44+00:00 11/12/2018 Project Description General repairs to gear-units according to Technical Maintenance Standards. Reaction rod housing repairs Tapped hole repairs Other corrective work. Gear-units worked on: 65