Service Infiniti QX4 since 1996 of release
1. Introduction
2. The maintenance instruction
3. Routine maintenance
4. The engine
5. Cooling and heating systems
5.1. Specifications
5.2. Antifreeze - the general data
5.3. Service of system of cooling
5.4. Removal, installation and check of serviceability of functioning of the thermostat
5.5. Removal, regenerative repair and installation of a radiator of system of cooling
5.6. Replacement of the water pump
5.7. Removal and installation of the fan of system of cooling
5.8. Air lines of distribution of air submitted to salon
5.9. System of an automatic air conditioning – a design and a functioning principle
5.10. A design of a refrigerator path of a central air of air
5.11. Compressor K/V, - the general information and a functioning principle
5.12. The Receiver-dehumidifier - the general information and service
5.13. Check of serviceability of functioning and service of systems of heating and an air conditioning
5.14. Diagnostics of a central air of air
6. Power supply systems and managements
7. Start and charge systems
8. A transmissionnaja line
9. Brake system
10. A suspension bracket and a steering
11. A body
12. An electric equipment
 












5-1-specifikacii.html

5.1. Specifications

Separate parametres are resulted also in the text of the Head and in case of compulsion of their performance are allocated by a bold type.


Cooling system

The characteristic

Value

Volume of a cooling liquid

Routine maintenance see the Head

Settlement pressure of a cover of a radiator, kgs/sm 2

  • The ventilating valve

0.6—0.98

  • Safety valve

9—14

Temperature of opening of the thermostat, С

82

Thermostat valve stroke, mm

10 (at 95С)


Central air

The characteristic

Value

Compressor K/V type

Calsonic V6 6-cylinder

Coolant type

R-134a

Coolant volume, ml

633—738

Type of refrigerator oil

S (№ KLH00-PAGS0)

Volume of the refrigerator oil which are filled in at change of components, ml

  • The compressor

To fill in in the quantity equal to quantity of merged oil

  • The condenser

75

  • The evaporator

75

  • Receiver-dehumidifier

6

  • Full volume of system

204

Working pressure in system at temperature 30С and relative humidity of 50-70 % (to check after not less than 10 minutes after system start)

  • Nizkonapornyj path, kgs/sm 2

2.0—2.8

  • Vysokonapornyj path, kgs/sm 2

14.5—19.2

Effort of a tension of a belt of a drive of compressor K/V

  • Size of a deflection of a new belt, mm

9.0—10.0

  • Size of a deflection of the belt which was in the use, mm
    • Models till 1999 вып.

9.0—11.0

    • Models since 2000 вып.

10.5—11.5

Site of service valves of the compressor

  • Nizkonapornyj path

In a line of a low pressure between the evaporator and the compressor

  • Vysokonapornyj path

In a line of a high pressure between the compressor and the condenser


Productivity of system K/V

Temperature of external air, С

Temperature on leaving the system, С

At relative humidity of 50-60 %

25

6—9

30

10—13.6

35

15.2—19.5

40

22.5—27.1

At relative humidity of 60-70 %

25

9—12.2

30

13.6—17.2

35

19.5—23.7

40

27.1—32.3


Temperaturno-pressure head characteristics of system

Temperature of external air, С (at relative humidity of 50-70 %)

Pressure in высоконапорном a path, kgs/sm 2 Pressure in низконапорном a path, kgs/sm 2

25

12.5—16.7

1.8—2.6

30

14.5—19.2

2.0—2.8

35

16.9—22.3

2.4—3.2

40

19.6—25.5

29.—3.8


Condition of the double-thread switch

Pressure, kgs/sm 2

System condition Conductivity between plugs 1 and 2
Nizkonapornyj path

Lowering till 1.6-2.0

Off

No

Raising till 1.6-2.0

Incl.

Takes place

Vysokonapornyj path

Lowering till 19-23

Incl.

Takes place

Raising till 19-23

Off

No



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5. Cooling and heating systems
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5.2. Antifreeze - the general data