Spring, Extension - IBM 6400 series Maintenance Manual

Spring, Extension

Do not let the hammer bank rotate toward the platen during spring
replacement.
Removal
1. Prepare the printer for maintenance (page 194).
2. Open the printer cover.
3. Remove the shuttle cover assembly (page 209).
4. Unhook the extension spring from the spring lugs on the hammer bank
and shuttle frame. (See Figure 47, page 279.)
Installation
1. Put a dab of IBM #20 bearing lubricant on both spring lugs.
Make sure the extension spring does not touch the MPU cable after
installation.
2. Hook the extension spring over the spring lugs. (See Figure 47, page
279.)
3. Install the shuttle cover assembly (page 209).
4. Return the printer to normal operation (page 159).
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ATTENTION
ATTENTION
Replacement Procedures and Illustrated Parts List