Setup, Compatibility & Care
To install, place the lock over your Demco cast coupler while in the uncoupled position. Ensure the internal buffer ring is centered to minimize movement. Insert the provided key and turn to secure the locking pin.
Compatibility Note: This device is designed exclusively for Demco cast couplers in 2" and 2-5/16" sizes. It will not function correctly on standard universal flat-tongue trailers.
Care Instructions: Keep the internal lock cylinder lubricated with a dry graphite spray if the unit is exposed to extreme weather for long periods. Periodically wipe the exterior with a damp cloth to remove salt or road grime that could potentially compromise the powder coating.