The Linear 217436 HCT Drive Sprocket is a replacement component for Linear (Nortek Control) HCT series operator systems. It transfers motor output to the chain drive that moves the mechanism, helping maintain smooth, reliable travel in high-cycle environments. Use it to restore performance when the original sprocket shows wear or damage. The part is referenced in Linear HCT parts documentation under manufacturer part number 217436; always verify compatibility in your operator’s manual or parts diagram before ordering, as this is not a universal component.
During service, isolate power, relieve chain tension, remove the worn sprocket from the drive shaft or gearbox output, align the replacement on the shaft, secure with the specified fasteners, and reset chain tension and alignment. After mechanical adjustments, check and recalibrate travel limits per the Linear HCT operator manual. Follow lockout/tagout procedures and local safety codes; installation is recommended for qualified technicians familiar with Linear HCT operator maintenance. This OEM-identifiable replacement part supports routine repair and upkeep of Linear HCT operator assemblies where 217436 is listed by the manufacturer.