IBM 6500-V05 Maintenance Manual - Page 492

4. Move the idler shaft enough to expose the lower mount screw of the power stacker stepper motor. (Figure 90.) 5. Cut and remove the upper tie wrap securing the stepper motor wires to the elevator. (Be careful not to cut a motor wire.) 6. Using an M-2 Allen wrench, remove the two screws securing the stepper motor to the elevator. (Figure 90.) 7. Using a 9/64 inch Allen wrench, loosen (do not remove) the collar screw securing the collar to the roller drive shaft. (Figure 90.) 8. Support the roller drive shaft with one hand and pull the stepper motor shaft out of the roller drive shaft. Let the motor hang from its cables. Stepper Motor Mount Screws Collar Screw Power Stacker Stepper Motor Roller Drive Shaft Idler Shaft Figure 90. Power Stacker Stepper Motor 492