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HEATER AND MANUAL AIR CONDITIONER – On-vehicle Service 55-8 12. Evacuate to a vacuum reading of 100 kPa or higher (takes approx. 10 minutes). Start evacuation Approx. for 10 minutes up to Stop evacuation Refrigerant charging (until saturated pressure is reached) Wait for 5 minutes Air-tight check If faulty Refrigerant charging Gas leak check* If faulty Retighten connections *: If the leaking point cannot be located even after 13. Return the handle of the adapter valve 1 to the original position (valve closed), turn off the vacuum pump adapter 14. Carry out a leak test. (Good if the negative pressure does not drop.) 15. With the handle turned back all the way (valve open), install the charging valve to the service can. 16. Remove the adaptor valve 1 from the gauge manifold and install the service can. 17. Tighten the handle of the charging valve (valve closed) and puncture the service can. 18. Turn the handle of the charging valve back (valve open) and tighten the handle of the adaptor valve 1 (valve open) 19. If the refrigerant is not drawn in, turn the handle of the adaptor valve 1 back all the way (valve closed). 20. Check for gas leaks using a leak detector. Caution 21. Start the engine. COOL). 23. Fix the engine speed at 1,500 r/min. to charge the required volume of refrigerant. Caution 25. After charging with refrigerant, turn the handle of the adaptor valve 1 back all the way (valve closed). 26. Tighten the charging valve handle (valve closed). Charging Adapter valve Charging hose R134a Quick joint Low- High- Air conditioning system |