|
|
HA-6 < PRECAUTION > PRECAUTIONS • Read and follow all manufacture’s operating instructions and precautions prior to performing the work for the purpose of safety and customer’s satisfaction. • A compressor shaft seal should not necessarily be repaired because of dye seepage. The compres- sor shaft seal should only be repaired after confirming the leak with an electrical leak detector (SST: J-41995). • Always remove any remaining dye from the leak area after repairs are completed to avoid a misdiag- nosis during a future service. • Do not allow dye to come into contact with painted body panels or interior components. Clean imme- diately with the approved dye cleaner if dye is spilled. Fluorescent dye left on a surface for an extended period of time cannot be removed. • Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.). • Do not use more than one refrigerant dye bottle [1/4 ounce (7.4 cc)] per A/C system. • Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R-12) A/C systems are different. Do not use HFC-134a (R-134a) leak detection dye in CFC-12 (R-12) A/C system or CFC-12 (R-12) leak detection dye in HFC-134a (R-134a) A/C system or A/C system damage may result. • The fluorescent properties of the dye remains for three or more years unless a compressor malfunc- tion occurs. NOTE: Identification • Vehicles with factory installed fluorescent dye have a green label. • Vehicles without factory installed fluorescent dye have a blue label. Service Equipment INFOID:0000000009667160 RECOVERY/RECYCLING RECHARGING EQUIPMENT Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Do not introduce any refrigerant other than that specified into the machine. ELECTRONIC LEAK DETECTOR Be certain to follow the manufacturer’s instructions for tester operation and tester maintenance. VACUUM PUMP The oil contained inside the vacuum pump is not compatible with the specified oil for HFC-134a (R-134a) A/C systems. The vent side of the vacuum pump is exposed to atmospheric pressure. Vacuum pump oil may migrate out of the pump into the service hose. This is possible when the pump is switched OFF after evacuation (vacuum- ing) and hose is connected to it. To prevent this migration, use a manual valve placed near the hose- to-pump connection, as per the following. • Vacuum pumps usually have a manual isolator valve as part of the pump. Close this valve to isolate the service hose from the pump. • Use a hose equipped with a manual shut-off valve near the pump end for pumps without an isolator. Close the valve to isolate the hose from the pump. • Disconnect the hose from the pump if the hose has an automatic shut-off valve. As long as the hose is connected, the valve is open and lubricating oil may migrate. Some one-way valves open when vacuum is applied and close under no vacuum condition. Such valves may restrict the pump’s ability to pull a deep vacuum and are not recommended. MANIFOLD GAUGE SET RHA270DA |