TM 1-1520-264-23
a.
Select AC on the AC/DC power switch.
b.
Place probe/yoke on part in position 1 as shown.
c.
Press the test switch and apply a light coat of magnetic particle media at the same time. Remove the m
edia
momentarily before removing the current. Current should be applied for no more than five seconds.
d.
Inspect for cracks using the black light.
4.38.3.7 Marking and Recording of Inspection Results. Mark and record the inspection results as required by paragraph
1.3.
4.38.3.8 Demagnetization. With the switch remaining in the AC position, place the probe/yoke legs in the same position
used for magnetizing. Press the test switch and withdraw the probe/yoke from the part for a distance of two feet before
releasing the switch.
4.38.4
Backup Method. None required.
4.38.5
System Securing. Clean the identified hardware thoroughly to remove all residual magnetic particle media.
Refer to Post Cleaning and Restoration of Part or Area After NDI, paragraph 1.4.16. The identified hardware requires
installation in accordance with the applicable technical manuals listed in Table 1-1.
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