AS9N010B.STB AS-93plus Service Manual.fm - LIQUID-scan GmbH ...

Kinds of positional misalignments
There are 2 kinds of positional misalignment possible:
• Parallel misalignment, if
the positionings, seen in X-axis, of the rear sample locations
(0,14,26,38,50,62,74,86,98,110,122,134,146) are ok,
but the front sample locations
(5,13,25,37,49,61,73,85,97,109,121,133,145,157) are showing an offset.
• Offset misalignment,
if the tip of the sampling probe shows a constant offset in X- or Y-axis in all
sample locations .
Note A parallel misalignment must be corrected before an offset misalignment
can be corrected.
The table 4 on page 55 shows the existence of a parallel misalignment while the X-offset
is just in tolerance.
Correction of a parallel misalignment
A parallel misalignment must be corrected by rotating the tower.
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Figure 26 Correction of a parallel misalignment ( exaggerated illustration)
56 of 68 AS9N010B.STB
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110 122 134 146
99 111 123 135 147
100 112 124 136 148
101 113 125 137 149
102 114 126 138 150
103 115 127 139 151
104 116 128 140 152
105 117 129 141 153
106 118 130 142 154
107 119 131 143 155
108 120 132 144 156
109 121 133 145 157