Printronix P9012, Maintenance Manual

Page: 96 / 256

5–12 Alignments and Adjustments
7. Install a counterweight spring shim as follows:
NOTE: More than one shim may be required to obtain the desired effect.
a. Loosen screw (9) about three turns.
b. With the screwdriver, press in on the loosened screw to create space
for a shim (10).
c. Install a shim between the spring spacer and the casting (11).
d. Tighten the screw.
8. Operate the printer.
a. Run the printer for 10 minutes using a shuttle/ribbon fast test. Check
for rattle and increase the preload if necessary.
b. Run the printer using a shuttle/ribbon slow test. Check for stalls or
no–start conditions and decrease the preload if necessary.
9. Install the cam cover and the attached gasket.
10. Tighten two screws and close the printer cover.