How to Repair a Padlock

Updated November 21, 2016

Padlocks are used to secure buildings, gates, equipment, bicycles and other objects around a residential or commercial property. Padlocks are most often made of brass, aluminium or steel. When exposed to outdoor elements, it's not uncommon for a padlock to become difficult to operate. Left unchecked, a padlock will become unusable. A few basic repairs will return a padlock to working order.

Pour all purpose liquid lubricant into a container. Choose a container such as a coffee can. Add 6 inches of the lubricant to the container.

Place the nozzle on a can of compressed air. Spray the air into the lock to remove dirt, dust and debris. Wear safety glasses and a dust mask.

Form a hook from a short piece of wire. Create the same hook on both ends of the wire. Place the lock on one end of the wire. Lower the lock into the lubricant and hook the other end of the wire on the lip of the container. Cover the container and shake to work the lubricant into the lock parts.

Remove the lock from the lubricant after 24 hours. Allow excess lubricant to drain from the lock, then wipe the lock with a rag.

Open the lock. Remove any deposits of rust or corrosion from the hasp or body of the lock with emery paper. Blow the outside and inside of the lock clean with compressed air.

Apply a few drops of sewing machine oil to the moving parts of the lock for lubrication.

Things You'll Need

  • Compressed air can with nozzle
  • All purpose liquid lubricant
  • Container with lid
  • Wire
  • Rag
  • Emery paper
  • Sewing machine oil
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About the Author

Keith Dooley has a degree in outdoor education and sports management. He has worked as an assistant athletic director, head coach and assistant coach in various sports including football, softball and golf. Dooley has worked for various websites in the past, contributing instructional articles on a wide variety of topics.