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HA-4 < PRECAUTION > PRECAUTIONS Precaution for Procedure without Cowl Top Cover INFOID:0000000004205476 When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc. Precaution for Working with HFC-134a (R-134a) INFOID:0000000004205477 WARNING: • CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. If the refrigerants are mixed compressor failure is likely to occur. Refer to HA-25, "Checking of Refrigerant Leaks" . To determine the purity of HFC-134a (R-134a) in the vehicle and recovery tank, use Refrigerant Recov- ery/Recycling Recharging equipment and Refrigerant Identifier. • Use only specified oil for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components. If oil other than that specified is used, compressor failure is likely to occur. • The specified HFC-134a (R-134a) oil rapidly absorbs moisture from the atmosphere. The following handling precautions must be observed: - When removing refrigerant components from a vehicle, immediately cap (seal) the component to minimize the entry of moisture from the atmosphere. - When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just before connecting the components. Connect all refrigerant loop components as quickly as possible to minimize the entry of moisture into system. - Only use the specified oil from a sealed container. Immediately reseal containers of oil. Without proper sealing, oil will become moisture saturated and should not be used. - Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat. Remove HFC-134a (R-134a) from the A/C system using certified service equipment meeting require- ments of SAE J2210 [HFC-134a (R-134a) recycling equipment], or J2209 [HFC-134a (R-134a) recy- cling equipment], If accidental system discharge occurs, ventilate work area before resuming service. Additional health and safety information may be obtained from refrigerant and oil manufac- turers. - Do not allow A/C oil to come in contact with styrofoam parts. Damage may result. Contaminated Refrigerant INFOID:0000000004205478 If a refrigerant other than pure HFC-134a (R-134a) is identified in a vehicle, your options are: • Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant into the atmosphere. • Explain that recovery of the contaminated refrigerant could damage your service equipment and refrigerant supply. • Suggest the customer return the vehicle to the location of previous service where the contamination may have occurred. • If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain- ers. Do not recover contaminated refrigerant into your existing service equipment. If your facility does not have dedicated recovery equipment, you may contact a local refrigerant product retailer for available ser- vice. This refrigerant must be disposed of in accordance with all federal and local regulations. In addition, replacement of all refrigerant system components on the vehicle is recommended. • If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact NISSAN Cus- tomer Affairs for further assistance. General Refrigerant Precaution INFOID:0000000004205479 WARNING: PIIB3706J |