TM 1-1520-265-236.6.3.5NDI Equipment Settings.a.Make the following initial settings on the Eddy Current Inspection Unit, NORTEC-1 9e".Frequency F1- 200 KHz F2 - offHdB- 57.0VdB- 69.0Rot- 56°Probe drive- midLPF- 100HPF- 0H Pos- 80%V Pos- 20%b.Refer to Eddy Current Method, paragraph 1.4.11. Set up on test block as follows:(1)Null probe on test block.(2)Adjust phase as required to obtain horizontal lift-off.(3)Move probe over all three notches in test block. Adjust gain to obtain a three block vertical signal whenprobe is passed over 0.040-inch notch in test block. (See the standard instrument display shown in Figure1-7.)6.6.3.6Inspection Procedure. Refer to Eddy Current Method, paragraph 1.4.11 and Figure 6-6.Figure 6-6. Pedal Adjuster Arms and Link6-11
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