MTU Detroit Diesel 183 Series Technical Publication page 44

Group 00
Subgroup 0005
Page 6
Liquid Nitrogen
• Store liquid nitrogen only in small quantities and always in regulation containers (without fixed seal)!
• Do not allow liquid nitrogen to come into contact with parts of body (eyes, hands). Liquid nitrogen causes cold
burns and severe frostbite.
- Wear protective clothing (including gloves and closed shoes) and goggles.
- Ensure good ventilation (suffocation if nitrogen enrichment in inhaled air reaches 88%)
- Take great care not to subject containers, fittings and tools to any impact or shock.
Compressed Air
• Compressed air is highly pressurised air and stored in pressure vessels from which it is then extracted.
• The prevailing pressure can be read off at the pressure indicators (pressure gauges) which are to be fitted on
the pressure vessels and the compressed air lines.
• Pressure can cause serious bodily harm, especially if applied suddenly.
• When working with compressed air, safety precautions must be constantly observed:
- Pay special attention to the pressure level in the compressed air network and pressure vessel!
- Connecting devices and equipment must either be designed for this pressure or, if the permitted pressure for the
connecting devices is lower than the pressure required, pressure-reducing valves and safety valves (set to the
permitted pressure) must be installed. Hose couplings and connections must be securely attached!
- Always wear protective goggles when blowing tools clean or blowing chips away!
- The air-nozzle mouthpiece is provided with a protective disc (e.g. rubber), which prevents air-borne particles
rebounding and thereby protects against eye injury.
- First shut off compressed air lines before compressed air equipment is disconnected from the supply line or
before equipment or tool is to be replaced.
- Unauthorised use of compressed air, e.g. forcing flammable liquids (danger class AI, AII and B) out of
containers, results in a "Risk of explosion"!
- Forcing compressed air into thin-walled containers (z. B. containers made of tin, plastic and glass) for drying
purposes or to check for leaks results in a "Risk of explosion"!
- Removing dirt from soiled clothes while still being worn can result in a "Risk of injury"! Even compressed air at
low pressure penetrates clothing and, if the jet is directed at the back of the body, the air can enter the anal
cavity and cause a potentially fatal rupture of the intestines!
Used Oil
• Used oil may contain health-threatening combustion residues.
- Rub barrier cream into hands!
- Clean hands thoroughly after contact with used oil!
20080/1 E 98-12
General