Riccar/Simplicity Poly-V Superlite Lifetime Belt - R10P, R10S, R17, RSL5, CleanMax ZM-600/ZM-700 Electrolux-Eureka Disconnect power to the unit

Disconnect power to the unit before starting the repair

and a failing right-hand block on the Duo shows up as grinding

It mounts on the crevice nozzle

and a rubber bumper protects baseboards and furniture legs from scuffs

Riccar/Simplicity Poly-V Superlite Lifetime Belt - R10P, R10S, R17, RSL5, CleanMax ZM-600/ZM-700 Electrolux-Eureka Disconnect power to the unitThis replacement poly V belt keeps the brush roll spinning on Riccar and Simplicity Superlite uprights and their CleanMax counterparts. Part number B014 1200, its ribbed poly V profile grips the motor pulley and brush roll for firm, positive power transfer. The belt drives the roller that agitates carpet as you clean. Belts stretch, glaze, and crack with heat and use, and a loose or worn belt lets the brush roll turn too slowly or stop altogether.