Belt, Paper Feed Timing, Adjustment - IBM 6400 Maintenance Information Manual

Chapter 6

Belt, Paper Feed Timing, Adjustment

Belt, Paper Feed Timing, Adjustment

To make this adjustment, follow these steps:
1. Prepare the printer for maintenance (page 152).
2. Cabinet Model: Remove the paper guide assembly (page 229).
Pedestal Model: Remove the top cover assembly (page 204).
3. Cabinet Model: Loosen four screws and remove the barrier shield. (See
page 258, Figure 44, items 3 and 4.)
Pedestal Model: Remove the four screws securing the paper guide and
barrier shield. Remove the paper guide and barrier shield. (See page 260,
Figure 45, items 3, 4, and 5.)
4. Remove the timing belt cover (1) by squeezing the front and back to
release the plastic tabs from the slots in the side plate.
5. Loosen (do not remove) the motor mount bolts (2).
6. Using the straight end of a force gauge, apply 15 pounds (66.7 N) of
pressure to the paper feed drive motor (3) near the mounting base of the
motor. Use the splined shaft (4) to steady the gauge.
7. Reduce tension to 12 pounds (53.4 N) and torque the paper feed motor
mount bolts (2) to 18
8. Snap the timing belt cover (1) into the slots in the side plate.
9. Cabinet Model: Install the barrier shield and tighten the four screws. (See
page 258, Figure 44, items 3 and 4.)
Pedestal Model: Install the paper guide and barrier shield and tighten the
four screws. (See page 260, Figure 45, items 3, 4, and 5.)
10. Cabinet Model: Install the paper guide assembly (page 229).
Pedestal Model: Install the top cover assembly (page 204).
11. Return the printer to normal operation (page 153).
154
± ±
2 inch-pounds (2.03 0.23 N•m).