Following No.401's cold annual exam a few mud-hole doors were selected for building up with weld and grinding back to tolerance
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| The doors were held in place in the boiler to mark up where the gaps were before being placed in the vice for welding |
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| After being welded up, the welds were ground back |
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| Bit more tidying up required on this one before its good to go |
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| Work begins on the larger mud-doors |
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| Steve dressing welds |
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