IBM 6500-V5P Maintenance Manual - Page 335
Installation, Do not attempt to adjust or tweak hammer springs.
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Hammer Spring Assembly ATTENTION ATTENTION Installation 1. Using a clean dry cloth, wipe the hammer spring mounting surface on the hammer bank. Make sure the cloth does not leave lint on the hammer bank. Hammer springs and hammer tips are fragile. Do not touch the hammer springs or tips. Handle hammer springs by the thick mounting base only. Apply pressure only to the mounting base. NOTE: Replace a hammer spring assembly only if there is visible damage or you see broken parts in the assembly. 2. Handling it by the mounting base only, remove the new hammer spring assembly and mounting screws from the box. 3. Handling the hammer spring assembly by the mounting base only, carefully position it on the hammer bank mounting pins. then gently press the mounting base down against the alignment pins. (See Figure 17, page 336.) 4. Continue pressing down on the mounting base of the the new hammer spring assembly as you install the mounting screws from the replacement kit. Using a Torx T-10 bit adapter, torque each screw to 14 inch-pounds (1.58 N•m). Tighten the center screw(s) first. (See Figure 17, page 336.) NOTE: Use the 1-30 inch-pound Torque Screwdriver, IBM part number 16F1661. 5. Install the hammer bank cover assembly (page 325). 6. Install the shuttle frame assembly (page 362). 7. Install the ribbon and load paper. Do not attempt to adjust or "tweak" hammer springs. 8. Run an operator print test and check print quality (page 213): a. If print quality is acceptable, return the printer to normal operation (page 314). b. If print quality is still degraded, replace the shuttle frame assembly (page 362). 335