Abgabegerät

An adjustable tool (10) for dispensing a two-part adhesive from a two-chamber cartridge (14) having a mixing nozzle (16) with each chamber having a plunger (18) has pistons (42) insertable into the respective chambers (14). Piston rods (44) and a drive rod (70) move conjointly with the pistons (42). A lever (120) is pivotable on a frame (30). A feed nut (130) is mounted loosely on the drive rod (70) to grip the drive rod when canted for moving the drive rod (70), the piston rods (44), and the pistons (42) conjointly to a forward limiting position of the feed nut (130) when the lever (170) is actuated. A spring (150) biases the feed nut (130) backwards. A set screw (160) threaded adjustably into a threaded hole (162) in the frame (130) defines a backward limiting position of the feed nut (130). The screw head (166) engages an outer margin (172) of the threaded hole (162), in a counterbore, to provide an inner limit to threading of the set screw (160). A cover (180) mounted over the threaded hole (162) has an access hole (190) sized to permit a screwdriver tip (T) of a smaller size but not the screw head (168) to pass and engage the screw head (168) to provide an outer limit to unthreading of the set screw (160).