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GENERAL WELDING MAINTENANCE (CONT).
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TM-9-3990-206-14-P Palletized Load System (PLS) FlatrackM1074/M1075 Manual
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WALL REPLACEMENT.
TM 9-3990-206-14&P
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.
Do not weld the flatrack while on trailer or truck, or damage to equipment may result.
b.  Flatrack Welding. Welding on the flatrack must be performed off the trailer or truck. Different areas of
the flatrack require different weld electrodes. Use the following guidelines to determine the correct weld.
(1)
Hookbar. Two different welding methods can be used to repair the hookbar.
NOTE
Use minimum preheat and maintain the interpass temperature of 300 degrees F
(149 degrees C).
(a)
ER110S-1 Gas Metal Arc Welding (GMAW). This method requires the use of a wire-feed welder
with argon and oxygen shielding gas and ER110S-1 welding wire.
(b)
E11018-M Submerged Metal Arc Welding (SMAW). This process utilizes a E11018-M stick
electrode and an arc welder (Item 19, Appendix I).
(2)
Rear ISO Lock Retaining Pin. Repairing welds on this retaining pin requires the use of an arc welder and
an ER308 stainless steel stick electrode.
(3)
Remaining Flatrack Welds. Welding wire ER80S-D2 is used to repair welds on the majority of the
flatrack with the exception of the hookbar and the rear ISO lock retaining pin. Welding with ER80S-D2
weld wire requires a wire-feed welder and carbon dioxide shielding gas.
(4)
Painting Instructions. Refer to TB 43-0209 and TM 43-0139 for painting instructions for the flatrack.
10-5

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