Magnetic fastening system and method for change parts

A method carried out in connection with a machine that is operative to at least one of fill and cap material holding containers, and which machine includes a generally planar surface that operatively supports containers moving in the machine,

• comprising:
• (a) operatively engaging a generally planar container guide and the planar surface,
• wherein the guide includes
• a generally smooth continuous guide edge configured to guide moving containers in engagement therewith,
• at least one elongated slot, wherein the at least one elongated slot includes
• an enlarged end configured to enable a head of a mounting pin that extends upward relative to the planar surface to pass therethrough, and
• a closed end configured to enable the stem of the pin which is intermediate of the head and the planar surface to extend therein but to prevent the head from passing perpendicularly therethrough,
• at least one guide magnet in operative connection with the guide,
• at least one guide member engaging surface,
• wherein operatively engaging the guide and the planar surface includes
• (i) extending the head of the mounting pin in the enlarged end of the slot, and
• (ii) thereafter moving the guide relative to the pin generally parallel to the planar surface in a direction such that the pin moves in the slot from the enlarged end toward the closed end thereof to an operative position, and wherein the at least one guide magnet is operative to magnetically hold the guide in the operative position,
• (b) with the guide in the operative position, engaging at least one lock member engaging surface of a manually releasable lock member and the at least one guide member engaging surface,
• wherein engaging the at least one guide member engaging surface and the at least one lock member engaging surface includes moving the lock member generally perpendicular to the planar surface to an engaged position, wherein engagement of the at least one guide member engaging surface and the at least one lock member engaging surface in the engaged position is operative to prevent the guide from moving relative to the pin from the operative position in a second direction opposed to the first direction of the enlarged end of the slot.