Daikin-McQuay 032279200 Crankarm

For field technicians managing Daikin Applied maintenance, the Daikin-McQuay 032279200 Crankarm is the standard replacement for 1/2 inch shaft damper assemblies. This critical HVAC damper linkage hardware is engineered for a precise fit on 1/2" damper shafts, ensuring reliable torque transfer from the actuator to the damper blades. When you are troubleshooting erratic airflow or stuck dampers in RAH or RDS series units, checking the linkage crank arm for slip or rounding is a priority. This OEM damper actuator crankarm features a heavy-gauge, zinc-plated construction designed to resist environmental corrosion and withstand the mechanical stress of high-cycle commercial HVAC applications.

Installation requires accurate alignment to prevent over-rotating the linkage, which can damage the assembly. Using this specific 032279200 replacement part ensures compatibility with the existing drive rod and ball swivel setups. It provides the necessary clamping force to maintain position without the frequent slippage seen in generic aftermarket alternatives. For contractors, having a reliable damper linkage part on the truck means faster calls and fewer callbacks on building automation and zoning system repairs.

• Precision Fit: Specifically machined for a 1/2 inch shaft to eliminate play and ensure accurate damper positioning.
• Industrial Durability: Constructed from zinc-plated steel to handle the high-torque demands of commercial linkage actuators.
• OEM Compatibility: Drops directly into Daikin-McQuay air handlers and rooftop units without the need for field modifications.
• High-Tension Clamping: Designed to maintain a secure grip on the damper shaft, preventing the slip that causes airflow calibration errors.

Is the 032279200 compatible with 3/8" shafts?
No, this specific model is bored exclusively for a 1/2" shaft. For 3/8" applications, a different part number must be sourced to ensure proper clamping.

What causes a crankarm to fail in the field?
Most failures result from loose set screws or over-driving the motor past the mechanical stops, which can round out the bore or bend the arm. Always verify the stroke limits during startup.

Does this include the ball swivel or linkage rod?
This part number covers the crankarm only. Swivels and rods are typically sold separately or as part of a complete damper linkage kit.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.