Manual Wheel Restraint Secures Variety of Trailer Configurations


Serco's Manual Safety-Chock provides loading docks with a cost-effective, versatile wheel restraint solution, capable of engaging and restraining the wide range of trailers that come to thedock, including trucks with lift gates, damaged Rear Impact Guards, or different axle configurations.Easy installation, simple operation and minimal maintenance provide a lower lifetime cost of ownershipthan other wheel restraint systems, and its ergonomic design enables easy maneuvering for accurate and reliably safe operation.

The Manual Safety-Chock’s patent-pending designprovides up to 32,000 lbs. (142 kN) of restrainingforce. Its ergonomic handle allows easy engagementof the restraining arm, and the unique foot pedalreleases the arm away from the wheel, eliminatingchock pinch.Standard LED interior and exterior lights and an exterior audible alarm enable effective communicationbetween dock employees, yard jockeys and truck drivers. Proximity and photo cell sensors allow therestraint to be interlocked and sequenced with other dock equipment, providing ease of operation andenhanced safety.The Manual Safety-Chock’s galvanized finish and rugged construction are designed for extreme weatherconditions, and the combination of the 10-degree guide rail angle, integrated scrapers and optional heattracer cable helps clear the restraint of snow, ice and debris.


  • capable of engaging and restraining the wide range of trailers
  • simple operation
  • up to 32,000 lbs. (142 kN) of restrainingforce
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