2-10
HP 85106D mm-Wave System
Operation
System Set Up
Standard Flanges
The standard flanges are designed so that the mating surfaces are on a
different plane than the edges. It is necessary that the mating surfaces be
flush. To connect the flange, use the steps below:
1. Install the captive screws in all four tapped holes on one of the flanges.
2. Carefully bring the flanges together using the guide pins for alignment.
3. Hold the mating surfaces in contact while engaging the first few threads
of each of the four screws.
4. Now gently tighten the top screw until there is light pressure on the
mating surface, then lightly tighten the bottom screw to bring the flange
mating surfaces into even, intimate contact.
5. Gradually tighten all four screws in an X-pattern. Continue the
X-pattern through final torquing to ensure that equal contact pressure is
applied to all four waveguide wall surfaces.
While making the connection you may inspect the mating surfaces for
proper alignment by placing a lamp or white paper behind the connection. If
the flanges cannot be aligned so that there is no gap, loosen all screws and
start again.
When the top screw is tightened with the bottom screw loose, the upper
surface of the mating areas are brought together first. The objective is to
equalize the pressure across the entire contact surface. Tightening the top
screw brings the mating surfaces together forming an angle. This angle
determines the final mating force when the opposite screw is tightened.
Tightening the opposite screw then brings the mating surface into complete
contact. When the upper screw is holding the mating surfaces together
properly (a very shallow angle), gently tighten the opposite screw and
recheck flange alignment in all axes using the light or white paper behind the
flange. If flange alignment is complete, evenly tighten the screws on the side
and recheck the alignment.
Precision Flanges
Make these connections slowly and carefully. To connect the precision
flanges, bring the flange together using the guide pins for alignment, then
gradually tighten all four screws in an X-pattern. Continue the X-pattern
through the final torque. The flange outer radius and the inner mating surface
share the same plane making these flanges easier to connect.
Summary of Contents for 85106D
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Page 117: ...4 24 HP 85106D mm Wave System Service and Troubleshooting Check Unratioed Power Levels ...
Page 139: ...5 22 HP 85106D mm Wave System HP 85104A Test Set Module Troubleshooting Procedures ...
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