2007 Arctic Cat Four-Stroke Factory Service Manual, Page 351Get this manual
! NOTE: On the Bearcat WT (STD) and Panther 660 models at this point, move and secure the speed sensor bracket out of the way 7With the sleeve free from the bearing, remove the jam nut; then remove the bearing and sleeve from the driven shaft and on the Bearcat WT (STD) and Panther 660 models, account for the speed sensor magnet! NOTE: The magnet may remain on the driven shaft or may come off with the sleevebearing assembly
! NOTE: If the driven pulley is tight on the shaft, pull the driven pulley off using the Driven Pulley Puller (pn 0644-469) for the turbo models or (pn 0744-023) for non-turbo models
8Thoroughly clean the driven shaft with fine emery cloth or with scuff padINSTALLING
! NOTE: On the Bearcat WT (STD) and Panther 660 models, assure that the speed sensor magnet is in place on the driven shaft
4Using Driven Shaft Bearing RemovalInstallation Tool (pn 0644-516), remove the jam nut from the bearing; then remove the locking ring