TM 1-1520-238-23
Change 8
3-65
3.18.
MAIN LANDING GEAR SHOCK STRUT REMOVAL/INSTALLATION – continued
e. Check mount shaft for cracks or deformation.
(1) Not more than 0.001 INCH deformation of the diameter is allowed.
(2) Check mount shaft for corrosion (para 1.49).
f. Check if cad plating on mount shaft has been removed (para 1.49).
g. Check rod ends for bearing hole elongation. Maximum elongation is 0.002 INCH.
h. Check shock strut bearings for play.
(1) Maximum allowable play is 0.010 INCH.
i. Check bore of main landing gear mounts for corrosion (para 1.49).
j. If corrosion is removed from main landing gear mount bore, measure inside diameter of bore.
(1) If measurement exceeds 0.950 INCH, replace mount.
k. Check shock strut and mount shaft for corrosion (para 1.49).
3.18.6. Repair
NOTE
This process may repair only 22 square inches total area (20% of total surface area). Amounts above
this must be returned as unserviceable condition.
a. This process is authorized to repair only 22 square inches of the entire plated surface area of the
landing gear struts TM 55-1500-322-24.
(1) Lightly abrade corroded areas with abrasive pads in order to loosen all corrosion. Use pad (item 130,
App F).
(2) Wipe entire area with solvent. Use acetone (item 1A, App F)
(a) Air dry for 15 MINUTES or until all solvent odor has dissipated.
(3) Apply cleaner. Either brush or spray may be used to apply the compound. Use cleaning compound
(item 46A, App F).
(a) Allow compound to remain on the surface until all corrosion is loosened or dissolved, usually 5 to 30
MINUTES.
(b) Rinse the compound from the deoxidized surface with clean tap water. Allow drying until all water has
evaporated.
(4) Apply a light coat of primer to all surfaces that are to receive paint. Use primer (item 143, App F).
(TM 55-1500-323-24)
(a) Allow air drying for 60 to 90 MINUTES.
(5) Apply primer to all conditioned surfaces. Use epoxy primer coating kit (item 76A, App F).
(TM 55-1500-323-24)
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