--- title: How to troubleshoot actuator failure on movable bridges? description: Discover the best actuators for movable bridge locking systems and weatherproofing strategies for outdoor conditions. Learn about integration with city infrastructure, compliance with civil engineering standards, and troubleshooting techniques for actuator failures. Explore power failure operation options, energy efficiency of electric actuators, typical speed ranges for bridge lifting, and best practices for inspection and maintenance. Essential insights for engineers in public works and infrastructure management. --- [Skip to content](https://info.racointernational.com/en-us/knowledge-base/raco-ma-type-a-direct-motor-driven-screw-selection-chart-3-1-0-0-0-0-0-0-0#main-content) English - United States Show submenu for translations ![](https://info.racointernational.com/hs-fs/hubfs/Cream%20Minimal%20Aesthetic%20Studio%20Facebook%20Cover%20(851%20x%20315%20px)%20(1640%20x%20624%20px)%20(1640%20x%20624%20px)%20(2000%20x%20624%20px)%20(3).png?width=2000&height=625&name=Cream%20Minimal%20Aesthetic%20Studio%20Facebook%20Cover%20(851%20x%20315%20px)%20(1640%20x%20624%20px)%20(1640%20x%20624%20px)%20(2000%20x%20624%20px)%20(3).png) Open main navigation Close main navigation - English - United States Show submenu for translations - [Contact us](https://share.hsforms.com/2IHwoo1SXQV6LKaKpwnj-0Qrgmyq) [Contact us](https://share.hsforms.com/2IHwoo1SXQV6LKaKpwnj-0Qrgmyq) How can we help you? - There are no suggestions because the search field is empty. 1. [RACO Actuator Knowledge Base](https://info.racointernational.com/en-us/knowledge-base?hsLang=en-us) 2. [FAQs](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us) 3. [Buildings (Movable Bridges, Locks, Wedges)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#buildings-movable-bridges-locks-wedges) # How to troubleshoot actuator failure on movable bridges? **In these demanding applications, and with any electric motor driven system, troubleshooting usually involves physically inspecting the actuator up close, even if Fault or Alarm Codes have been signaled.**      - [FAQs](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#main-content) - [Plant Construction (Hydromechanical Equipment / Lock & Dam)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#plant-construction-hydromechanical-equipment-lock-dam) - [Buildings (Movable Bridges, Locks, Wedges)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#buildings-movable-bridges-locks-wedges) - [Automotive (Hexapod, 6-axis machines, Sheet Metal Press Machinery)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#automotive-hexapod-6-axis-machines-sheet-metal-press-machinery) - [Material Handling (Bulk Handling / Coal Conveyor, Diverters, Snow Plows)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#material-handling-bulk-handling-coal-conveyor-diverters-snow-plows) - [Energy (Power Plants, Renewable Energy Control)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#energy-power-plants-renewable-energy-control) - [Food (Processing Plant Conveyors, Steering Actuators)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#food-processing-plant-conveyors-steering-actuators) - [Iron & Steel (Cold Rolling Mills, Tube Mills, Shear Applications)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#iron-steel-cold-rolling-mills-tube-mills-shear-applications) - [Cranes & Lifters (Lifting, Storm Pins, Grabbers)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#cranes-lifters-lifting-storm-pins-grabbers) - [Transportation (Rail, Heavy Equipment)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#transportation-rail-heavy-equipment) - [Machinery (Industrial, Material Positioning)](https://info.racointernational.com/en-us/knowledge-base/faqs?hsLang=en-us#machinery-industrial-material-positioning) - [General](https://info.racointernational.com/en-us/knowledge-base/general?hsLang=en-us) - [Compact Engineering Charts](https://info.racointernational.com/en-us/knowledge-base/compact-engineering-charts?hsLang=en-us) - [MA Engineering Charts](https://info.racointernational.com/en-us/knowledge-base/ma-engineering-charts?hsLang=en-us) [![RACO International L.P.](https://info.racointernational.com/hs-fs/hubfs/RACO-2.png?width=240&height=240&name=RACO-2.png "RACO International L.P.")](http://racointernational.com) 3350 Industrial Blvd | Bethel Park | PA | 15102 [mailto:raco@racointernational.com](mailto:raco@racointernational.com) Copyright © 2025, RACO International L.P.