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Daewoo Nexiasince 1994 of releaseRepair and car operation |
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Deu Neksiya + Maintenance instruction + Maintenance + Engine + 3. Engine (two top camshafts) + cooling System + Toplevnaya and exhaust systems + Electric chain + 7. Ignition system + 8. Electronic control unit and sensors + Transmission + 10. Five-speed transmission and main RPO MM5 broadcast + 11. Automatic Transmission + Steering + Running gear + 14. Forward suspension bracket + 15. Drive of forward wheels + 16. Back suspension bracket + Brake system + Body - Heating, ventilation 19.2. Air central air 19.3. Diagnostics of malfunctions 19.4. Features of the conditioner 19.5. Work of central air of air + 19.6. Management of air central air 19.7. Relay and switches - 19.8. Diagnostics of malfunctions 19.8.2. Insufficient cooling of air - the operative test 19.8.3. Check of tightness of system of cooling of air + 19.9. Maintenance + 19.10. Removal and installation of knots of central air of air 19.11. The V-5 compressor – the work description + Electric equipment |
19.8.2. Insufficient cooling of air – the operative test
The simplified test described below allows to establish quickly an insufficient charge of system of CB coolant R-12 (air temperature exceeds 21 ° C). The test takes some minutes and can simplify considerably troubleshooting of KB system or reduce labor input of detailed testing of system. 1) The engine should be heated-up and idle. 2) To open a cowl and Body doors. 3) To turn on the button of KB system and to switch off the button of a retsirkulyatsiya of air. 4) To establish an air temperature regulator on the minimum temperature. 5) To include the maximum speed of rotation of the fan. 6) At the switched-on compressor to define to the touch temperature of the entrance pipeline of the evaporator (behind a throttle branch pipe) and a receiver. At serviceable system of cooling of air the entrance branch pipe of the evaporator and a surface of a receiver should have identical temperature which on some degrees is lower than air temperature. To check existence of other malfunctions. To check existence of leakages of a coolant. At detection of leaks to discharge KB system and to make necessary repair. Then again to charge KB systems a coolant. If leaks it is not revealed, to carry out detailed check of Quarter system. |
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