Jeep Grand Cherokee

1993-1999 of release

Repair and car operation



Jeep Grand Cherokee
+ Cars of mark Jeep Grand Cherokee
+ Options and routine maintenance
+ Рядный the six-cylinder engine
+ Engine V8
+ Procedure of the general and engine major repairs
- Systems of cooling, heating and air conditioning
   The general information
   Antifreeze - the general information
   Check of functioning and thermostat replacement
   Check of serviceability and replacement of the fan of system of cooling and муфты its couplings
   Check of functioning and replacement of the block of the gauge of temperature of a cooler
   Removal and installation of a radiator and broad tank of system of cooling
   Check of functioning of the water pump
   Removal and installation of the water pump
   Check of serviceability of an electric contour and replacement of components of the motor of the fan of a heater and air conditioner
   Removal and installation of the block of the fan of a heater
   Removal and installation of assemblage of management by a heater and air conditioner
   Removal and installation of the heat exchanger of a heater
   Check of serviceability and service of systems of heating and air conditioning
   Diagnostics of system of automatic control in temperature (automatic telephone exchange) without its removal from the car
   Removal and installation of the accumulator (store) of a central air of air
   Removal and installation of the compressor of a central air of air
   Removal and installation of the condenser of a central air of air
   Removal and installation of a tube of the calibrated jet
   Removal and installation of the evaporator of a central air
+ The power supply system and release of the fulfilled gases
+ System of an electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of a gear change
+ Automatic transmission
+ Distributing box
+ Coupling and трансмиссионная a line
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of an onboard electric equipment
+ Controls and operation receptions

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Removal and installation of a tube of the calibrated jet

The general information

Assemblage of a tube of the calibrated jet represents the restrictive block dividing низконапорную and высоконапорную half filled with a liquid coolant of system. The block regulates a stream of the coolant arriving in the heat exchanger of the evaporator.

The evaporator temperature is supervised by tracing of pressure in its heat exchanger by means of the electric gauge-switch operated pressure. The switch operates compressor functioning, supporting thereby pressure in the evaporator in the set limits.

If at pressure in system by means of a manometre it is established that in высоконапорной parts pressure is very high, whereas in низконапорной parts the strong depression (vacuum) takes place, the calibrated jet is hammered also a tube with it it is necessary to replace.

Replacement

For undocking of the connections of refrigerator lines of a central air of air equipped with spring locks the special tool (see Has undressed Removal and installation of the heat exchanger of a heater) is required.


 PERFORMANCE ORDER

  1. Disconnect a negative wire from the battery.
  2. By means of the special tool (see Has undressed Removal and installation of the heat exchanger of a heater) disconnect from the evaporator heat exchanger on a partition of an impellent compartment the liquid line going to it from the condenser.
  3. Disconnect the second end of a liquid line from the condenser and remove it from the car.

The tube of the calibrated jet is an integral part of the given liquid line and they are replaced with the uniform block.


The tube of the calibrated jet (marksman) is an integral part of a liquid line going to the evaporator.

  1. Закупорьте apertures in system blocks immediately after removal of a line in order to avoid hit in them of a moisture and a dirt.
  2. Establish into place assemblage of a line with a tube of the calibrated jet.

In the butt connections of lines of system equipped with spring locks at assemblage the sealing rings suitable for the use in contact to oil of type R-134a should be established.

  1. In the same dealer branch where discharged system make it опорожнение, a gymnastics and check on leaks.