IBM 7133 D40 Service Manual page 231

Serial disk systems
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Step 10. Refer to Figure 121.
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Figure 121. Removing the Frame Assembly from the RS/6000 Rack
Step 11. Remove the four front mounting screws 1 .
Step 12. Note: For a translation of the following notice, see the 7133 Serial Disk
Systems and SSA Adapters: Translated Safety Notices manual.
CAUTION:
Do not attempt to lift the 7133 by yourself. Ask another service
representative for aid.
With aid from another service representative, pull the frame assembly forward
and remove it from the rack.
Step 13. Replace parts in the reverse sequence.
Notes:
a. When you reinstall the frame assembly into the rack, reinstall the front
mounting screws before you reinstall the back clamp plates or brackets.
Reinstall the front mounting screws in the following sequence:
1) Install lower left-hand front mounting screw. This screw locates the
7133 laterally. Do not fully tighten the screw yet.
2) Install the other three front mounting screws. Do not fully tighten the
screws yet.
3) Fully tighten the lower left-hand front mounting screw.
4) Fully tighten the other three front mounting screws.
b. Go to the back of the 7133.
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Chapter 3. Removal and Replacement Procedures
213

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