Measure length of cord and mark with marking instrument supplied, leaving 1/2" excess at end of cord. Place ends in cutting guide.

 Cut cord and apply bonding liquid: Insert clean razor blade supplied into cutting guide slot and apply firm pressure downward. Remove cord, keeping cut surfaces clean. Apply a small amount of bonding liquid by dipping ends into liquid and allow to dry (until dull).

 Set cord into mold: Insert first end of cord half way into mold and lock with screw clamp. Pull to test if cord is firmly locked. Place other end of cord into mold and apply light pressure, forcing both ends together. Lock with screw clamp, being sure to align ends accurately.

 Vulcanize and cool: After placing top of mold in position, slide mold onto heating element. Set heater to high and leave die on for 13 minutes, then set to low for 7 minutes. Turn off heater and quench die in cooling pan. When cool, remove locks and mold top. Pull out new O-Ring and resume production.