As freight cars go “maintenance of way” wagens are everywhere along the railroad right of way, they are on sidings awaiting deployment to tunnels, tracks, signals, catenary, crossings or accident clearing. Maintenance is the name of the game for every railroad due to the daily impact heavy trains bear down on track and equipment plus weather is a harsh foe of the same. In Sweden weather is a factor on railroad right of way electrical equipment and track beds thus cars with the intended purpose of aiding in daily maintenance is required. FR’s side dump cars with a load of gravel or ballast is one such example, it is based on the prototype Eo hydraulic side dump car and used on the Swedish State Railways (SJ).

Although this car type can be used for various types of loads it can be included in MOW service if it were carrying ballast as a load. Full metal construction this set includes two cars with brakeman’s platform in prototypical red/brown paint scheme.