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2.
Loosen the pivot wing knob and raise the frame bar to an angle
greater than the surface to be scanned
(Fig. 193)
. Tighten the pivot wing
knob and place crawler on scan surface
(see “Placement of Crawler on
Inspection Surface” on page 94)
3.
Release the front swivel mount adjustment levers to align the swivel
mount parallel to the scan surface
(Fig. 194)
.
Fig. 193 - Lift frame bar to avoid interference
Fig. 194 - Align swivel mount with scan surface