Hammer Spring Assembly
333
Hammer Spring Assembly
Removal
1. Prepare the printer for maintenance (page 313).
2. Remove the shuttle frame assembly (page 362).
3. Carefully vacuum the shuttle frame assembly.
4. Remove the hammer bank cover assembly (page 325).
ATTENTION
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 broken parts can be seen in the assembly.
5. Remove the mounting screws from the old hammer spring assembly. (See Figure 16, page 334.)
6. Handling the hammer spring assembly by the mounting base only, gently pry the old hammer spring assembly off its
mounting pins. (See Figure 16, page 334.)
7. Inspect the hammer bank and the old hammer spring assembly:
a. If there is ink on the hammer bank mounting surface, the hammer spring assembly mounting surface, or the hammer
spring neck or tines, reinstall the old hammer spring assembly and replace the shuttle frame assembly (page 362).
b. If the old hammer spring assembly and the hammer bank are free of ink, install the new hammer spring assembly
(page 335).
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