Older 2000 and 3000 series panel saws required a secondary smaller spool. These have been discontinued. This is the replacement part to upgrade your entire Retraction Mechanism. It includes 2 standard size spools and the wrench for tensioning.
This will need to be installed in place of the older style with one standard size and one small spool.
Please put one hook on the carriage and then attach the second hook to the first hook before applying tension.