Powered saw including dust capture apparatus

A method of changing a concrete saw blade comprising:

• providing a concrete saw having a first circular saw blade, said first circular saw blade having an outer peripheral edge;
• providing a vacuum manifold disposed about a portion of said outer peripheral edge, said vacuum manifold including a manifold flange portion;
• providing a tubular hose coupling, said tubular hose coupling having a hose coupling flange portion, said hose coupling flange portion being operatively coupled to said manifold flange portion, said tubular hose coupling including a fastener, said fastener being adapted to retain said tubular hose coupling at a first elevation angle with respect to said concrete saw;
• releasing said fastener;
• pivoting said tubular hose coupling to adjust its orientation from said first elevation angle to a second elevation angle whereby said tubular hose coupling is moved from a first position in which said tubular hose coupling obstructs removal of said first circular saw blade from said concrete saw to a second position in which removal of said first circular saw blade from said concrete saw is unobstructed;
• releasing said first circular saw blade from said concrete saw;
• replacing said first circular saw blade with a second circular saw blade;
• pivoting said tubular hose coupling to adjust its orientation from said second elevation angle to said first elevation angle whereby said tubular hose coupling is moved from said second position to said first position;
• and
• fastening said fastener.