IBM 6400 Maintenance Information Manual page 377

8. Remove the two 5/32 x 3/4 inch screws and washers securing the vertical
rails to the upper frame cross-member at the rear of the cabinet. (See
Figure 69.)
9. Raise the elevator assembly.
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Legend:
1. Vertical Rail
2. Washer (2)
3. Screw, 5/32 x 3/4 inch (2)
4. Screw, 7/64 x 1/2 inch or Torx T-10 (2)
5. Washer (2) but no washers with Torx T-10 screws
6. Stacker Base
Figure 69. Preparing the Stacker for Removal
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