31st July 2018, 07:09 PM
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Engineer
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Full Name: Carl Byrne
Join Date: Nov 2007
Location: Wales
Posts: 3,093
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Try this one:-
https://www.dfb.ch/index.php?id=1780&L=0
There may be other videos from the same boiler works. Look at just after 13 minutes in.
Cheers Carl.
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