View Cart, Checkout
View Cart, Checkout No items in your cart

Foster Products

ZSi Products


Inspection and Maintenance


  • Inspect for cracks, chips, dings or other damage.

  • Clean as necessary using water and a mild detergent.
    External buildup may be removed using a wire brush,
    taking care not to mar the surface of the plug.

  • Replace any damaged plug.


  • Inspect overall for cracks, dents or other damage.

  • Inspect inside socket for damage or debris.

  • Actuate all moving parts to ensure they operate freely with no scraping or binding.

  • Clean as necessary using water and a mild detergent.

  • Replace any damaged socket.


  • Install the plug into the socket, making sure the parts connect easily and hold firmly.

  • Disconnect coupler, check that the plug and socket release easily and smoothly, with no scraping or binding.

  • On BL (ball lock) and SL Series (with locking sleeve), rotate sleeve to the locked position and attempt to disconnect, pulling firmly to ensure the coupler stays connected.

  • Rotate sleeve to the unlocked position, and ensure the coupler disconnects easily.

  • If any damage, binding or unintended disconnecting is found, both the coupler and plug should be replaced.