Elecraft KPA500 Kit Assembly Manual - Manual (Page 25)

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Reposition the bottom cover assembly and attach it to the transformer support plate and Z-bracket as shown
in Figure 31.
Figure 31. Installing the Z-Bracket and Transformer Support Plate in the Bottom Cover Assembly.
Locate the right side panel and remove any masking tape found on the inside (partially painted) surface.
Stand the unit on the left side panel and install the right side panel as shown in Figure 32. The weight of the
PA/LPF module may flex the Z-bracket slightly. The unit will be somewhat top heavy in this position but it best
protects the PA/LPF assembly toroids from accidentally being pushed down against the bottom cover until the
side panel is in place. Install the screws that thread into the PA/LPF module heat sink first so you can easily
make small adjustments, if needed, to align the holes for the remaining screws.
Figure 32. Mounting the Right Side Panel.