Remove cotter pin and nut from the bolt to be inspected.
k. Inspect the nut to determine the presence of silver plating. The nut (except P/N MS9364-17) should
be cadmium plated, (gold in color).
If a silver colored nut (other than P/N MS9364-17) is installed, the bolt may be subjected
to galvanic coupling (corrosion) internally and must be replaced and a category 1 QDR
submitted IAW para 10.d.(1).
Moisten a clean cloth with cleaning compound solvent . Thoroughly clean the exposed portion of
the bolt, the washers and nut.
m. Inspect the exposed portion of the bolt, washers, and nuts for cracks and visible corrosion, and
check the retaining pin mechanism for binding.
Rotate the bolt 360 degrees to view all surfaces. Cracking may occur longitudinally along the
bolt in the threaded area, and laterally across the bolt in the area of the retaining balls.
During the inspection, if resistance or binding of the bolt plunger mechanism is ob-
served, do not apply CPC to free the mechanism. The inner core of the bolt may be
corroded and must be rejected.
n. If the visual inspection of any bolt is obstructed or otherwise hindered by location, remove the pivot
bolt to inspect.
o. If there is either cracking or corrosion in the areas of the retaining balls, threaded portion of the bolt,
or the retaining pin hole in the bolt head, or the there is resistance or binding of the plunger mechanism, pro-
p. If the nut or washers show signs of corrosion, proceed to paragraph 9.b..
Absolutely no cracking or corrosion is allowed on the bolt, nut, or washers.
q. If the bolt, nut, and washers show no signs of corrosion, cracks, or binding, proceed to Paragraph
a. If binding, cracks or corrosion was found during the inspection, replace the bolt and reinstall IAW
b. If the nut or washer are corroded, replace both the nut and washer and reinstall IAW paragraph 9.c..
Prior to reinstalling all bolts and attaching hardware, perform the following for each of the 15 pivot
(1) Apply corrosion preventive compound (CPC) , Item 114, Appendix D, TM 1-1520-237-23-9
or item 128, Appendix D, TM 1-1520-250-23-6 to each nut and bolt as follows.