Specifications

6–18
Replacement Procedures and Parts
4. Rotate the bearing sleeves (23) so that the slots (Figure 6–3, item 26) are
facing the front of the printer. Make sure that the front edge of the shuttle
shroud (Figure 6–4, item 26) fits behind the machined edge of the
casting, and that the foam air seal (27) makes a tight seal against the
casting.
5. Line up the left edge of the right bearing sleeve (Figure 6–4A) so that it
is directly adjacent to the recessed bearing cap screw hole and base
casting indent, with the bearing sleeve slot facing forward (Figure 6–3,
item 24). Verify that the slot faces forward by placing a 1/16–inch allen
wrench (28) into the hole in the right bearing mounting block, pushing
the allen wrench in so that the end fits into the bearing sleeve slot, and
attempting to rotate the bearing sleeve by hand.
6. Install the right bearing cap (15) by tightening the short mounting screw
(13) and two longer mounting screws (14) finger tight. Then tighten
them snugly using an allen wrench, in the following order: first 13;
second 14(2); third 14(3).
7. Line up the right edge of the left bearing sleeve (Figure 6–4B) so that is
directly adjacent to the recessed bearing cap screw hole, with the bearing
sleeve slot facing forward (Figure 6–3, item 24). Verify that the slot faces
forward by placing a 1/16–inch allen wrench (28) into the right hole in
the left bearing mounting block, pushing the allen wrench in so that the
end fits into the bearing sleeve slot, and attempting to rotate the bearing
sleeve by hand.
8. Install the left bearing cap (16) and tighten the three mounting screws
(14) finger tight. Then tighten them snugly using an allen wrench, in the
following order: first 14(1); second 14(2); third 14(3).
9. Install the two screws (8) that attach the shuttle shroud to the bearing
caps.
10. Install the anti–rotation shims (10) that were removed with the old
hammer bank (Removal, Step 11.). Install the anti–rotation block screws
(9) using an allen wrench.