Specifications

6–20
Replacement Procedures and Parts
11. Torque the right and left bearing set screws (Figure 6–5A, item 12) to 10
in–lb.
12. Wedge the shank of a large screwdriver between the yoke and the
flywheel shank (29) such that the cam follower bearing and cam are not
in contact. Remove the cam follower bearing screw (Figure 6–5B, item
30), holding a finger under the bearing to keep it in place. Remove the
two washers from the screw. Reinstall the screw with the antirotation tool
(Figure 6–5B, item 32). Do not use a wrench to tighten the screw; hand
tighten only. The bracket is intended to be at an angle, as shown in
Figure 6–5B.
13. Try to fit a .004–inch feeler gauge (Figure 6–5C, item 33) between the
side of the cam and the alignment tool at the top and bottom of the tool.
If the gauge fits in the top space (Figure 6–5C, left), add anti–rotation
block shims (Figure 6–4, item 10). If there is clearance at the bottom
(Figure 6–5C, right), remove shims. (Adding or removing one .005–inch
shim will normally correct the alignment.)
14. Remove the antirotation tool, install the cam follower bearing screw with
the original washers, and torque it to 20 in–lb. Remove the screwdriver
from between the yoke and fly wheel shank.
15. Connect the six hammer bank cables and install the velcro covers. Install
the dust barrier block (Figure 6–1, item 5). Install the ribbon deck
(Figure 6–1, item 2). Remove the three screws (Figure 6–1, item 20) that
secure the air deflector, then remove the deflector (Figure 6–1, item 21).
16. Connect the ribbon motor cables (Figure 6–1, item 1).
17. Install a standard (60 yard) ribbon. (This procedure is not possible with
100–yard ribbons. )
18. Load paper in the printer, then turn the printer on.