Nissan Silvia. Manual - part 263
General Refrigerant Precautions
=NMHA0062
WARNING:
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Do not release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.
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Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or
air conditioning system.
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Do not store or heat refrigerant containers above 52°C (125°F).
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Do not heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.
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Do not intentionally drop, puncture, or incinerate refrigerant containers.
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Keep refrigerant away from open flames: poisonous gas will be produced if refrigerant burns.
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Refrigerant will displace oxygen, therefore be certain to work in well ventilated areas to prevent
suffocation.
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Do not pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condi-
tioning systems with compressed air during repair. Some mixtures of air and R-134a have been
shown to be combustible at elevated pressures. These mixtures, if ignited, may cause injury or
property damage. Additional health and safety information may be obtained from refrigerant manu-
facturers.
Precautions for Leak Detection Dye
NMHA0271
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The A/C system contains a fluorescent leak detection dye used for locating refrigerant leaks. An ultravio-
let (UV) lamp is required to illuminate the dye when inspecting for leaks.
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Always wear fluorescence enhancing UV safety glasses to protect your eyes and enhance the visibility of
the fluorescent dye.
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A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal
should only be repaired after confirming the leak with an electronic refrigerant leak detector.
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Always remove any dye from the leak area after repairs are complete to avoid a misdiagnosis during a
future service.
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Do not allow dye to come into contact with painted body panels or interior components. If dye is spilled,
clean immediately with the approved dye cleaner. Fluorescent dye left on a surface for an extended period
of time cannot be removed.
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Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
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Do not use more than one refrigerant dye bottle (1/4 ounce / 7.4 cc) per A/C system.
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Leak detection dyes for R-134a and R12 A/C systems are different. Do not use R-134a leak detection dye
in R-12 A/C system or R-12 leak detection dye in R-134a A/C systems or A/C system damage may result.
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The fluorescent properties of the dye will remain for over three (3) years unless a compressor failure
occurs.
SHA436FA
Precaution for Identification Label on Vehicle
NMHA0272
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Vehicles with factory installed fluorescent dye have this iden-
tification label on the under side of hood.
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Vehicles with factory installed fluorescent dye have a green
label.
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Vehicles without factory installed fluorescent dye have a blue
label.
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PRECAUTIONS
General Refrigerant Precautions
HA-3