IBM 9306 Hardware Maintenance Manual page 21

Installing the NetBAY42 stabilizer brackets:
Figure 6. Lowering the NetBAY42 leveling pads and installing the side stabilizer brackets
1. Use a 12 mm open-end wrench to lower each of the four leveling pads just
enough so that they touch the floor. The rack casters support the weight of the
rack cabinet. The pads prevent the rack from rolling.
2. Attach a side stabilizer bracket to the front of the rack cabinet with the screws
that come with the bracket; then, attach the other three side stabilizer brackets.
Note: You must install the side stabilizer brackets so that they extend outward
from the rack cabinet, just behind the casters, as shown in Figure 6.
Figure 7. Installing the NetBAY42 front stabilizer bracket
3. Attach the front stabilizer bracket to the front of the rack cabinet with the screws
that come with the bracket.
Front stabilizer bracket
Type 9306 Model 250/420/421
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