After the operating season is over it is the time to concentrate in the boiler renovation of JR 4. The aim of the reparation is to retube the boiler, to build a new smoke box for the locomoyive and get it up and running next summer.
In the beginning of the last first week of September the badly corroded smoke box was lifted off and all the boiler tubing was removed. There is a new smoke box built by using the original drawings. At the same time all the tubes will be changed to new ones.
At the same time some other parts pf the locomotive like the ash box under the boiler will be renewed. During the renovation the boiler will go through also official internal boiler inspection.
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