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TM 9-2320-366-20-3
2-44. GENERAL INSPECTION INSTRUCTIONS
a.
Cleaning. Clean all parts before inspection. Check for defects such as physical distortion, wear, cracks, and pitting.
b.  Sealing Surfaces. Inspect all surfaces in contact with gaskets, packings, or seals for nicks and burrs. If any defect
is found, remove it before assembly.
c.  Bearings. Inspect bearings for rusted or pitted balls, races, or separators. Inspect balls and races for brinelling,
abrasion, and serious discoloration. The following are conditions for bearing rejection:
(1)
Cuts or grooves parallel to ball or roller rotation.
(2)
Fatigue pits (not minor machine marks or scratches).
(3)
Cracks.
d.  Gears and Splined Shafts. Inspect gears and splined shafts for wear, pittings, rolling, peening, scoring, burning,
brinnelling and fatigue cracks.
e.  Tubing and Hoses. Inspect all hose surfaces for broken or frayed fabric. Check for breaks caused by sharp kinks
or contact with other parts of the vehicle. Inspect copper tubing lines for kinks. Inspect fitting threads and mating
surfaces for damage. Replace any defective part. After assembly and during initial vehicle operation period, check for
leaks.
f.  Electrical Parts. Inspect all wiring harnesses and cable assemblies for broken, chafed, or burned wiring. Inspect
all terminal connectors for loose connections and broken parts.
g.  Metal Parts. Visually inspect all castings and weldments for cracks. Parts that carry a great load should receive
magnetic particle inspection. Critical non-ferrous parts may be inspected with fluorescent penetrant.
h.  Drain Plugs. When removing drain plugs from transmission, engine, hydraulic system components, or axle
differential and planetary hubs, check amount of sediment on plugs. Accumulations of grit or fine metal particles may
indicate actual or potential component failure. A few fine particles are normal. This inspection helps to determine if there
are defective parts prior to internal inspection of the component and to predict degradation of the equipment.
2-45. GENERAL REPAIR INSTRUCTIONS
a.
Burrs. Remove burrs from surface teeth with a fine-cut file or crocus cloth.
b.  Exterior Parts. Chassis and exterior painted parts may be resurfaced when paint is damaged, or where parts have
been repaired (TB 43-0242).
NOTE
Polished and machined steel parts not protected by cadmium, tin, copper, or other
plating or surface treatment require protection. Bare metal parts must be free of
moisture when protective coating is applied.
c.  Protecting Parts. Protect bare steel surfaces from rust when not actually undergoing repair work. Dip parts in, or
spray them with, corrosion preventive compound (Item 18, Appendix D). Aluminum parts may require protection in
atmospheres having a high salt content.

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