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• 139-432 OBSOLETE

• Actuator Tri-Arm

Bard part number 139-432 is an OEM actuator tri-arm linkage used in Bard wall-mounted HVAC ventilation assemblies where an actuator needs a sturdy multi-point arm to translate actuator rotation into smooth damper movement. If your fresh air, exhaust, or economizer damper is not tracking correctly, binds, or will not reach full open or closed positions, a worn or bent tri-arm can be the mechanical cause even when the actuator motor still works. Replacing 139-432 helps restore proper damper travel so the unit can regulate outdoor air and building pressure as intended, and because this is a fit-critical linkage piece, confirm the unit model and ventilation package before ordering to ensure compatibility with your Bard OEM setup.