Paper Feed Belt Tension - Printronix

P9212 Maintenance Manual

Paper Feed Belt Tension

Tension Check
1. Open the printer cover.
2. Remove two screws (1) and the belt guard (2).
3. Press the middle of the paper feed belt (3) down with the force gauge,
using 2 to 5 pounds of force.
4. If the belt deflects significantly more or less than .06 inch (1.6 mm),
adjust the tension as described below.
5. Install the belt guard and two screws.
6. Close the printer cover.
Adjustment
1. Remove the lower paper guide.
2. Loosen the four nuts (4) securing the paper feed motor (5).
3. Place a reusable tie–wrap around the motor, leaving enough slack to
insert the force gauge, in the manner illustrated on page 5–25.
4. Hook the right–angle end of the force gauge through the tie–wrap and
apply 7 pounds of tension to motor by pulling the gauge in the direction
opposite the splined shaft.
5. Hold 7 pounds tension on the force gauge and torque the motor mount
nuts (4) to 14 inch–pounds.
6. Remove the reusable tie–wrap from the paper feed motor.
7. Install the lower paper guide. (See page 6–40.)
5–16
(Figure 5–7)
Adjustments