Slide one looped end of the crossbow string onto the tip of a limb of the crossbow, making sure that it is securely attached. Attach each end of the stringer to each limb of the crossbow at the tip and then, cock the crossbow by pulling the stringer into the cocked position. The actual crossbow string, however, should remain hanging free below the limbs. Insert the loose end of the crossbow string through the loop on the corresponding end of the stringer, then slide the loose end onto the tip of the limb, making sure it’s secure. The crossbow string and the stringer should both be firmly attached to both limbs. Finally, un-cock the crossbow manually or by firing a bolt and the stringer should come off of one of the limbs easily. You will need to use a little more force to remove the other stringer end from its limb, as it will now be held down securely by the crossbow string.