5–72 Replacement Procedures
Shuttle Frame Assembly (Figure 5–31 )
Removal
1. Prepare the printer for maintenance (page 5–3).
2. Remove the shuttle cover assembly (page 5–24).
3. Disconnect the MPU cable connector (1).
4. Disconnect the shuttle motor cable connector (2).
5. Disconnect the shuttle cable assembly connector (3).
CAUTION
The hammer bank flex circuit ribbon cables can tear if handled roughly.
Do not pull on the cables; grasp the connectors to disconnect the flex
circuit ribbon cables. In the next step, disconnect the left and right flex
ribbon connectors gently, and do not bend the cables unnecessarily.
6. Disconnect the left and right hammer bank flex circuit ribbon
connectors (4 and 5).
7. Loosen the side 5/32 inch socket head clamp screws (6) and pull the
clamps (7) back and off the guide shaft (8). Do not remove the clamps.
8. Loosen the center 5/32 inch socket head screw (9) enough to release the
shuttle frame assembly (10) from the base casting (11).
9. Unlock and slide the tractors (13) outward as far as they will go on the
tractor support shaft (14).
10. Grasping the outer beam standoffs (12), lift the shuttle frame assembly
(10) out of the base casting (11). Lift it slowly and carefully: the shuttle
frame assembly is heavy.
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