Using your fingers or with the help of the Metal Contacts tightening tool (supplied with your SCOUTBARK100), twist the Metal Contacts counterclockwise to loosen and remove them. Insert another pair of Metal Contacts of the appropriate length and gently twist clockwise with your fingers to tighten them. Fit the tightening tool over the Metal Contact and twist counterclockwise to loosen it. To ensure that the Metal Contacts are securely fastened, fit the tightening tool over the Metal Contacts and twist clock-wise to tighten them securely.