BOILER REPAIR, WATER SIDE - CLOSING THE BOILER
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✎ Suggest a correctionShows how to close the boiler and prepare it for service again after all necessary inspections have been made to the water sides, including inspection and replacement of faulty tubes.
Sources
- usgov-av-1974 — title, year, creator, length, color, sound, description
Record added 2026-07-01 03:45:35 · Suggest a correction