5–8 Replacement Procedures
Cable Assembly (W4), Hammer Bank (Figure 5–3 )
Removal
NOTE: This procedure removes the left hammer bank cable assembly. The
procedure for removing the right cable assembly is the same.
1. Prepare the printer for maintenance (page 5–3).
2. Open the printer cover.
3. Remove the shuttle cover assembly (page 5–24).
4. Remove the paper guide assembly (page 5–42).
5. Remove the common controller PCBA (page 5–46).
6. Remove the mechanism driver PCBA (page 5–48).
7. Remove the power supply PCBA (page 5–50).
8. Remove two screws (1) securing the connector (2) to the bottom of the
card cage.
9. Remove two screws (3) securing the connector (4) to the base casting.
10. Note the location and number of tie wraps, then remove them.
11. Feed the hammer bank cable assembly (5) down through the base
casting, then out of the card cage.
Installation
CAUTION
Be careful not to damage the ribbon cable on the card cage or base
casting. Make sure the protective barrier is on top of the ribbon cables
at the card cage bottom.
NOTE: This procedure installs the left hammer bank cable assembly. The
procedure for installing the right cable assembly is the same.
1. Feed the hammer bank cable assembly (5) down through card cage,
around the printer, then up through the base casting.
2. Install two screws (3) securing the connector (4) to the base casting.
3. Install two screws (1) securing the connector (2) to the bottom of the
card cage.
4. Install tie wraps to join left and right hammer bank cable assemblies.
(See Removal step 10.)
5. Install the power supply PCBA (page 5–50).
6. Install the mechanism driver PCBA (page 5–48).
7. Install the common controller PCBA (page 5–46).
8. Install the paper guide assembly (page 5–42).
9. Install the shuttle cover assembly (page 5–24).
10. Return the printer to normal operation (page 5–86).
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