TM 55-1680-320-23 & P
2-11. RESCUE HOIST - INSPECT (cont)
2-11
5.
6.
Inspect electrical components for corrosion and damage.
Check for evidence of overheating and shorting, Inspect
electrical wiring for frayed and broken insulation.
Check for cuts and tears. Inspect electrical connectors for bent,
broken and missing pins.
Inspect identification and lubrication plates for legibility and security of attachment.
Table 2-3. INSPECTION REQUIREMENTS
NOTE
Minor component defects (small scratches, minor dents, etc.) are acceptable in some cases, providing the
defect does not effect t& performance of the component. It is up to the user to determine whether a defect
is acceptable, whether minor repair can return the component to use, or whether the component should be
discarded and replaced.
Burr -
A small, thin section of metal extending beyond a regular surface,
usually located at the comer or edge of a bore or hole. Burr shall be
removed to prevent injury to personnel and damage to adjacent components,
and resulting scratch or score shall be repaired,
Corrosion -
Loss of metal from a surface by chemical or electrochemical
action. Corrosion products are usually easily removed by mechnical
means. Refer to Avionic Cleaning and Corrosion Prevention manual for
corrosion identification, removal, and surface refinish.
crack -
A physical separation of two adjacent portions of metal, evidenced by
a fine or thin line that crosses surface. Caused by excessive stress, it
may extend inward from surface a few thousandths of an inch, or run
completely t.hrough section thickness. Cracks pose a serious threat to
component operation and may cause injury to operator. Cracks must be
repaired immediately. Extensively cracked surfaces shall result in
component replacement.
Dent -
Indentation in metal surface produced by an object striking with
force. The surface surrounding the indentation will usually be slightly
upset. Dents may be removed providing the repair does not structurally
weaken component. Minor dents may be left in surface if they do not rub
against or contact adjacent parts.
Nick -
Local break or notch on edge. Usually displacement of metal rather
than loss. Nick shall be blended into surface, or removed if blending
proves impossible.
Pitting -
Sharp, localized breakdown of metal surface. Usually with defined
edges, may result in a small, deep cavity, Refer to Avionic Cleaning and
Corrosion Prevention manual for pitting identification, removal, and
surface refinish.
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