Specifications

6–22
Replacement Procedures and Parts
19. Adjust the right bearing set screw using the shuttle/ribbon fast diagnostic
test. Place a 1/16–inch allen wrench through the cutout in the ribbon
deck and into the slot of the right bearing sleeve to keep the slot forward,
then run the shuttle/ribbon fast diagnostic test. As the printer is shuttling,
loosen the right bearing set screw two turns and retighten it with a torque
driver, torquing it to 10 in–lb. If a binding noise comes from the bearing,
repeat this process, loosening and tightening the right bearing set screw
while holding the allen wrench in the slot in the bearing sleeve.
20. Tighten the right jam nut to hold the right bearing set screw in place, and
remove the allen wrench from the right mounting block hole.
21. Adjust the left bearing set screw using the shuttle/ribbon fast diagnostic
test. Place a 1/16–inch allen wrench through the cutout in the ribbon
deck and into the slot of the right bearing sleeve to keep the slot forward,
then run the shuttle/ribbon fast diagnostic test. As the printer is shuttling,
loosen the left bearing set screw two turns and retighten it with a torque
driver, torquing it to 10 in–lb. If a binding noise comes from the bearing,
repeat this process, loosening and tightening the left bearing set screw
while holding the allen wrench in the slot in the bearing sleeve.
22. Tighten the left jam nut to hold the left bearing set screw in place, and
remove the allen wrench from the left mounting block hole.
23. Check the shuttle and counterweight preload. (See page 5–28.)
24. Check and adjust the platen gap. (See page 5–22.)
25. Install the air deflector (Figure 6–1, item 22), dust barrier block
(Figure 6–1, item 5), cam cover plate (Figure 6–1, item 4), and cam
cover (Figure 6–1, item 3).
26. Install the ribbon and load 132–column paper.
27. Check and adjust the magnetic pickup phasing. (See page 5–14.)
28. Run a diagnostic self test to print some 132–column lines.
29. Check alignment of the scale to the print at column positions 1 and 132.
30. If adjustment is necessary, loosen the three screws (Figure 6–1, item 20),
position the air deflector so that column positions 1 and 132 line up with
the first and last characters on the 132 character printout, and tighten the
screws.
31. Close the printer cover and return the printer to normal operation.