A professional who cleans and re-covers leaves of aluminum-ore filtering units, using overhead bridge crane and handtools. Respnsibilities include:

• Opens filter units and removes filter leaves, using crane.
• Strips worn covers from filter leaves, using knife and wire cutters.
• Transports filter leaves from filter units into cleaning vats, using crane.
• Cleans discharge neck of leaves, and swabs them with graphite paste.
• Covers cleaned filter leaves with cloth, and replaces leaves in filter units, using crane.