Assertion: welder | /r/CapableOf | fix any leak
Facets:
Source sentences:
text: Welders carry out overhauling and servicing of refrigeration units by repairing, changing, or reworking broken parts of compressors, condensers, and vacuum pumps; inspect Freon level in refrigeration units and fix any leak observed, and charge units as required; clean and change filters on ice machines and similar equipment; inspect heating elements and change if bad