10. DRIVE PULLEY/DRIVEN PULLEY/CLUTCH MXU 500IRS ASSEMBLY Dust Seal Dust Seal Clean any oil from the drive belt sliding surfaces on the driven face. Apply grease to lips of the new dust seals and install into the movable driven face. Coat new O-rings with grease and install them into the movable driven face grooves. O-ring O-ring Grease Install the movable driven face onto the driven face. Install the guide rollers and guide roller pins. Filling 8 g of grease to each guide groove. Grease Install the guide pins/rollers. Guide Pins/Rollers 10-15