Daewoo Nexia

since 1994 of release

Repair and car operation

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
   - 19.9. Maintenance
      19.9.1. Replacement of sealing rings
      19.9.2. Corrected addresses with a coolant
      19.9.3. Rules of installation of connections of pipelines
      19.9.4. Ensuring chemical purity of a coolant and refrigerating oil
      19.9.5. A discharge, having added oils, air pumping, the KV system charging a coolant
      19.9.6. Filter-vlagopoglotitelya installation
      19.9.7. Receiver maintenance
   + 19.10. Removal and installation of knots of central air of air
   19.11. The V-5 compressor – the work description
+ Electric equipment


19.9.3. Rules of installation of connections of pipelines


Carving connections of pipelines should be tightened with a certain moment. Insufficient or unduly strong inhaling of connections leads to a leakage of a joint or deformation of details. In both cases leakages of a coolant are possible.

Metal pipelines should not have dents and excesses not to reduce system effectiveness because of additional resistance of circulation of a coolant.

The radius of a bend of flexible pipelines should not be less than 4 diameters of a hose.

Flexible pipelines there should not be closer 65 mm from a final collector and the pipeline.

It is necessary to examine regularly flexible pipelines and to replace them on new in the presence of a leak, damages or at elasticity loss.

Before separation of any трубопро water it is necessary to discharge previously system from a coolant. Work should be carried out very carefully, despite indications of manometers. Отворачи вать connections it is necessary slowly, protecting the person and hands from possible contact to a liquid coolant if it remained in the pipeline.

At separation of any трубопрово da KB systems is necessary to close at once openings caps or jams in order to avoid hit in dirt and moisture system. Otherwise the accelerated wear of details of the compressor, a contamination of tubes of heat exchangers of the condenser and the evaporator, a throttle and compressor filters is possible.

At installation of connections with round sealing rings it is necessary to use an additional wrench for deduction from rotation of the motionless union. It will protect the pipeline and connection details from possible damages. At installation of connections of flexible pipelines important, that the coupling screwed in a nest, and the union on the hose end at the same time удержива foxes from rotation by additional wrenches at screwing up of a cap nut.

Sealing rings and seats should be in an irreproachable condition. The agnail or a particle of dirt can lead to leakages of a coolant. Before ring installation into place it is necessary to dip it into pure refrigerating oil: brands 525 if the system is filled with coolant R-12, and the PAG brands if the conditioner works at coolant R-134a.