Service of the Infiniti QX4 since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling system and heating
5.1. Specifications
5.2. Antifreeze - general information
5.3. Service of the cooling system
5.4. Removal, installation and check of serviceability of functioning of the thermostat
5.5. Removal, recovery repair and installation of a radiator of the cooling system
5.6. Replacement of the water pump
5.7. Removal and installation of the fan of the cooling system
5.8. Air ducts of distribution of the air given to salon
5.9. System of automatic air conditioning – a design and the principle of functioning
5.10. Structure of the refrigerator highway of the air conditioning system
5.11. The K/V compressor, - the general information and the principle of functioning
5.12. A receiver dehumidifier - the general information and service
5.13. Check of serviceability of functioning and service of systems of heating and air conditioning
5.14. Diagnostics of the air conditioning system
6. Feed and control systems
7. Systems of start and charge
8. Transmission line
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment
 












5-1-specifikacii.html

5.1. Specifications

Separate parameters are specified also in the text of the Head and in case of obligation of their performance are highlighted in bold type.


Cooling system

Characteristic

Value

Volume of cooling liquid

See the Head Routine maintenance

Settlement pressure of a cover of a radiator, kgf/cm 2

  • Ventilating valve

0.6 — 0.98

  • Safety valve

9 — 14

Temperature of opening of the thermostat, °C

82

Valve stroke of the thermostat, mm

10 (at 95 °C)


Air conditioning system

Characteristic

Value

Type of the K/V compressor

Calsonic V6 is 6-cylinder

Coolant type

R-134a

Volume of coolant, ml

633 — 738

Type of refrigerator oil

"S" (No. KLH00-PAGS0)

The volume of the refrigerator oil which is filled in during the changing of components, ml

  • Compressor

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

  • Condenser

75

  • Evaporator

75

  • Receiver dehumidifier

6

  • Full volume of system

204

Working pressure in system at a temperature of 30 °C and relative humidity of 50 — 70% (to check not less than 10 minutes later after start of system)

  • Low pressure path, kgf/cm 2

2.0 — 2.8

  • High-pressure path, kgf/cm 2

14.5 — 19.2

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

  • Size of a deflection of a new belt, mm

9.0 — 10.0

  • The size of a deflection of the belt which was in the use, mm
    • Models till 1999 of the issue.

9.0 — 11.0

    • Models since 2000 of the issue.

10.5 — 11.5

Location of service valves of the compressor

  • Low pressure path

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

  • High-pressure path

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


Productivity of the K/V system

Temperature of external air, °C

Temperature on leaving the system, °C

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


Temperature and pressure head characteristics of system

Temperature of external air, °C (at relative humidity of 50 — 70%)

Pressure in a high-pressure path, kgf/cm 2 Pressure in a low pressure path, kgf/cm 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, kgf/cm 2

Condition of system Conductivity between plugs 1 and 2
Low pressure path

Lowering to 1.6 — 2.0

Off.

No

Raising to 1.6 — 2.0

Incl.

Takes place

High-pressure path

Lowering to 19 — 23

Incl.

Takes place

Raising to 19 — 23

Off.

No



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5. Cooling system and heating
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5.2. Antifreeze - general information




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