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TM 9-2320-304-14&P
5-104
Direct Support and General Support Maintenance (Cont)
5-23. LOAD HANDLING SYSTEM (LHS) HOOK ARM REPAIR (CONT).
b. Disassembly.
WARNING
·
Unsafe welding practices can cause serious injury from fire, explosions, or harmful
agents. Allow only authorized personnel to weld or cut metals, and follow safety
precautions in TC 9-237. Protective clothing and goggles must be worn, adequate
protective equipment used, a suitable fire extinguisher kept nearby, and requirements
of TC 9-237 strictly followed.
·
CARC paint contains isocyanate (HDI) which is highly irritating to skin and
respiratory system. High concentrations of HDI can produce symptoms of itching
and reddening of skin, a burning sensation in throat and nose, and watering of the
eyes. In extreme concentrations, HDI can cause cough, shortness of breath, pain
during respiration, increased sputum production, and chest tightness. The
following precautions must be taken whenever using CARC paint:
--
ALWAYS use air line respirators when using CARC paint unless air sampling shows
exposure to be below standards. Use chemical cartridge respirator if air sampling is
below standards.
--
DO NOT let skin or eyes come in contact with CARC paint. Always wear protective
equipment (gloves, ventilation mask, safety goggles, etc.).
--
DO NOT use CARC paint without adequate ventilation.
--
NEVER weld or cut CARC-coated materials.
--
DO NOT grind or sand painted equipment without high-efficiency air-purifying
respirators in use.
--
BE AWARE of CARC paint exposure symptoms; symptoms can occur a few days
after initial exposure. Seek medical help immediately if symptoms are detected.
NOTE
If hook arm retaining pin or snapper pin
replacement is necessary, grind chain tack
weld smooth on hook arm surface and tack
weld pin chain at same location.
(1) Remove two locknuts (1) and rubber
bumpers (2) from hook arm (3). Discard
locknuts.
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