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Issue 9 | FEBRUARY 2010 15
5.3. Avoid non-compatible materials
As mentioned above, oxygen will react to certain substances.
It is therefore important to watch for the following:
qThe oxygen components, as well as the area around them, must al-ways be cleaned with approved cleaner; before and after any work done on the system.
qClothing, skin and equipment (tools, rags etc…) should be clean and free from oil, grease and hy-drocarbons in general.
qKeep your hands clean (if pos-sible, wear cotton gloves). Do not touch connection ends nor the inside of oxygen components with bare hands, as skin oil and bacteria are a source of contamination (fig.7).
qStop all procedures that use flammable material such as clean-ing and de-icing materials.
qStop all refueling and all repairs on fuel and hydraulic systems.
qKeep all hydrocarbons (fuels, corrosion protection compounds, lubricants, etc.) away from sources of oxygen (fig.8).
5.4. Beware of non authorized procedures
Make sure that you use the correct Airbus documentations (tasks in AMM, Part number in IPC, SB...) and carefully fol-low the maintenance procedure instructions.
Keep the following recommenda-tions in mind to avoid injury to people and damage to equipment:
qWhen servicing, only use avia-tor’s breathing oxygen as defined by Airbus.
qNever use oxygen for other pur-poses such as tire or accumulator inflation, blowing of dust etc...
qDuring oxygen components re-moval and installation, make sure that the ground support equipment is approved for oxygen systems.
16 Issue 9 | FEBRUARY 2010
WARNING: NEVER USE STANDARD OIL TO
LUBRICATE THE CONNECTOR THREAD.
ONLY USE LUBRICANTS AND THREAD COMPOUNDS
SPECIFICALLY APPROVED FOR OXYGEN SYSTEMS.
Figure 8
Use only oxygen systems approved lubricant
Figure 9
Use two wrenches during disconnec-tion/reconnection of connectors and torque at right value
qDuring leak detection, make sure that the leak detector and test equip-ment are approved for oxygen systems.
qWhen removing or installing oxy-gen components, make sure that all oxygen cylinder valves are closed. Due to possible residual pressure in the lines, disconnect the connec-tors carefully. Put dry, clean, metal or plastic plugs on all pipes or units removed temporarily. Put each pipe or unit in a sealed vinyl bag.
qDuring disconnection/reconnec-tion of an oxygen line connector use two wrenches, one for the nut and one for the counter nut, to avoid force onto the material (risk of rup-ture and leakage) (Fig. 9).
qMake sure that the flexible hos-es are not twisted or pulled tight. If the hoses are twisted or pulled tight, the connections will break and cause a leak.
qTorque the connection at the right value, given by the Mainte-nance Manual, and make sure there is no leak by using an oxygen leak detection spray.
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本文链接地址：Safety First The Airbus Safety Magazine Edition February 2010(7)
