This allen wrench has a special hole to accept pin in the shackle bolt head.   Fits both shackles and shackle pendulum swing hangers. 

**Installation, Safe Use and Maintenance Instructions** 

IMPORTANT:  To keep children safe from harm, follow these precautions and instructions when installing, using, or maintaining this playground equipment. You can also call us at 1-800-433-2573 for more information or see http://www.cpsc.gov/cpscpub/pubs/325.pdf.  

Installation:   

Safe Use: 

Maintenance: Do the following to reduce the chance of serious injuries.  Check monthly for cracks, rust, missing rivets, open S-hooks or evidence of vandalism such as cutting, metal showing through the material or bent seats from children standing on them.  Tighten and lubricate all metallic moving parts per manufacturer’s instructions.  Check all protective coverings on nuts, bolts, pipes, edges, corners and all moving parts including swing hangers, swing seats, ropes, cables, chains and shackles.  Replace as needed.  Make sure there are no exposed footings, anchoring devices, rocks, roots, holes or any other obstacles in or around playground equipment.  In high use areas these inspections should be done more frequently.   Clean with mild soap and water when you do the monthly maintenance checks.  

Any damage from vandalism, abuse or misuse VOIDS all warranties.