Printronix P7000 Series Maintenance Manual page 487

WARNING
The constant force spring is powerful and under high tension. Protect
your hands with gloves. To avoid pinching or cutting your fingers, grip
the spring and drum firmly in the next two steps. Coil the spring slowly
and carefully. Do not let the spring twist or crimp.
3. Remove the shoulder screw, large washer, spacer, and small washer
from the constant force spring and drum. Let the spring coil itself up until it
reaches the top of its travel on the vertical rail. (Figure 94.)
4. Firmly gripping the spring and drum, remove the rail screw and washer
securing the spring to the vertical rail. (Figure 94.)
5. Position a new constant force spring on the vertical rail and install the rail
screw and washer. (Figure 94.)
6. Install the shoulder screw, large washer, spacer, and small washer as
shown in Figure 94.
Rail Screw
Washer
Constant Force Spring
Large Washer
Shoulder Screw
Figure 94. Removing and Installing the Constant Force Spring
Small
Washer
Spacer
Drum
Stacker Motor Check
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