TM 9-2330-357-14&P
4-17. INSPECTION INSTRUCTIONS (Con't).
b. Inspect drilled and tapped (threaded) holes for the following:
(1) Wear, distortion, cracks, and any other damage in or around holes.
(2) Threaded areas for wear distortion (stretching) and evidence of cross-threading.
c. Inspect metal lines, flexible lines, and metal fittings for the following:
(1) Metal lines for sharp kinks, cracks, bad bends, and dents.
(2) Flexible lines for fraying, evidence of leakage, and loose metal fittings or connectors.
(3) Metal fittings and connectors for thread damage and worn or rounded hex heads.
d. Inspect castings, forgings, and machined metal parts for the following:
(1) Machined surfaces for nicks, burrs, raised metal wear, and other damage.
(2) Inner and outer surfaces for breaks and cracks.
e. Inspect air lines, fittings, and connectors for leaks with soapy water (Item 9, Appendix E).
f. Inspect bearings in accordance with TM 9-214.
4-18. TAGGING PARTS.
a. Use marker tags (Item 17, Appendix E) to identify all electrical wires and air lines, and any other
parts which may be hard to identify or replace later. Fasten tags to parts during removal by wrapping wire
fasteners around or through parts and twisting ends together. Position tags to be out of the way during cleaning,
inspection, and repair. Mark tags with a pencil, pen, or marker.
b. Whenever possible, identify electrical wires with the number of the terminal or wire to which it
connects. If no markings can be found, tag both wires or the wire and the terminal, and use the same
identifying mark for both. If you cannot tag a wire because it must fit through a small hole or you cannot reach
it, write down the description of the wire and the point to which it connects or draw a simple diagram on paper.
Be sure to write down enough information so that you will be able to properly connect wires during assembly. If
you need to identify a loose wire, look for identifying numbers near the end of the wire, stamped on a
permanent metal tag. Compare this number to the wire numbers on the appropriate electrical schematic.
c. Identify and tag other parts as required by name and installed location.
4-19. LINES AND PORTS.
To keep dirt from contaminating air lines and fluid systems when removing and installing lines, perform
the following:
(1) Clean fittings and surrounding areas before disconnecting lines.
(2) Cover, cap, plug, or tape lines and ports after disconnecting lines. When these items are not
available, use handcarved wooden plugs, clean rags (Item 14, Appendix E), or other similar material to prevent
dirt from entering the system.
(3) Ensure that all new and used parts are clean before installing.
(4) Wait to uncover, uncap, or unplug air lines and ports until just before installing lines.
4-20