GENERAL WELDING INSTRUCTIONS.

TM 9-2320-364-34-1

2-23. GENERAL INSPECTION INSTRUCTIONS (CONT).

d. Gears and Splined Shafts. Inspect gears and splined shafts for wear, pittings, rolling, peening, scoring,

burning, brinnelling, and fatigue cracks.

e. Tubing, Hoses and Fittings. Inspect all hose surfaces for broken or frayed fabric. Check for breaks

caused by sharp kinks or contact with other parts of the truck. Inspect copper tubing lines for kinks. Inspect fittings

and tubing and mating surfaces and threads for nicks, cracks, scratches and other damage. Replace any defective

part. After assembly and during initial truck operation period, check for leaks.

f. Electrical Parts. Inspect all wiring harnesses 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.

2-24. GENERAL WELDING INSTRUCTIONS.

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.

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.

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