Xerox 8500DN Service Manual - Page 299

Service Parts Disassembly 19. Remove the Drum Assembly from the chassis by lifting it straight up as shown in the following figure. Note You will need to temporarily remove 3 screws of the Media Drive motor (PL 4.8) and pull the motor out of the way before you can lift the Drum and pulley from the chassis. Yellow Left-Hand Threaded Screws No Washer s8500-096 Caution Never rest the Drum on its pulley. Let the pulley hang over the edge of a surface and place the Drum on its feet. Replacement Caution The Drum Temperature Sensor harness is routed through the Exit Module. Use care during removal to avoid damaging the sensor. Note To help seat the Drum properly, follow steps 2-6 in order, when installing the screws to secure the Drum Assembly to the chassis. 1. Gently seat the Drum Assembly into the chassis. 2. Align the screw holes in the left and right sides of the Drum Assembly to the holes in the chassis sides. 3. Install one silver screw at the rear position of the left-side of the chassis to hold the left side of the Drum Assembly and torque the screw to 25 in. lbs. 4. Install the remaining two silver screws into the bottom and front chassis locations to the left side of the Drum Assembly. 5. Install one yellow reverse-threaded screw at the rear position of the right- side chassis to hold the right side of the Drum Assembly and torque to 25 in. lbs. 6. Install the remaining two yellow reverse-threaded screws into the bottom location (without a washer) and the front location (with a washer) on the right side of the Drum Assembly. 7. Spread apart the chassis handles near the left and right labyrinth seals to ensure the bearing is properly sealed. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-29