Service of the Infiniti QX4 since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling system and heating
6. Feed and control systems
7. Systems of start and charge
8. Transmission line
9. Brake system
9.1. Specifications
9.2. System of anti-blocking of brakes (ABS) - the general information and codes of malfunctions
9.3. Check of a state and replacement of brake lines and hoses
9.4. Replacement of blocks of disk brake mechanisms of forward wheels
9.5. Removal and installation of a support of the disk brake mechanism
9.6. Removal and installation of a brake disk
9.7. Replacement of brake boots of drum brake mechanisms of back wheels
9.8. Removal and installation of the main brake cylinder (MBC)
9.9. Removal and installation of assembly of the vacuum amplifier of brakes
9.10. Pumping of the brake system
9.11. Adjustment of the drive of the parking brake
9.12. Adjustments of a pedal of a foot brake
9.13. Adjustment of a spring of the valve regulator (LSV), sensitive to loading
9.14. Adjustment of sensors switches of stoplights and tempostata
9.15. Removal and installation of the ABS hydromodulator
9.16. Removal and installation of the G-sensor
9.17. Check of serviceability of functioning of wheel ABS sensors
9.18. Check of serviceability of functioning of the G-sensor
9.19. Check of serviceability of functioning of the relay of a driving electric motor of the hydromodulator
9.20. Check of serviceability of functioning of the relay of the electromagnetic valve of the hydraulic ABS modulator
10. Suspension bracket and steering
11. Body
12. Electric equipment
 












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9.3. Check of a state and replacement of brake lines and hoses

Approximately time in half a year, having lifted the car, check all flexible hoses connecting steel tubes of hydraulic contours to brake mechanisms of wheels on existence of cracks, signs of damage of a protective cover, traces of leak of liquid, swellings and other damages. Hoses are a critical and most vulnerable component of the brake system therefore them it has to be examined with all care — use a pocket small lamp and a small mirror. At identification of any doubtful signs the suspected hose is subject to replacement.

Replaceable steel and flexible brake lines can always be got at company car repair shop of the company manufacturers of the car, and also in company shops of automobile accessories.

Do not use as replaceable any tubes, except company, specially intended for installation in a brake contour of your car at all.

At installation of brake lines you watch that they were located at a distance of not less than 20 mm from the moving or vibrating components of a body, a suspension bracket or the steering drive.

For an otpuskaniye of nipple connections of flexible hoses with steel tubes of hydraulic lines use special cap keys with a cutting head.

After an otpuskaniye of a nut remove a clamp and release a brake hose from a basic arm.

For a detachment of a brake hose from a support turn out a hollow bolt of nipple connection and you will throw out its old sealing washers (at assembly of a washer are subject to replacement without fail).

Rassoyedineniye of two hoses is made by means of ordinary Rozhkov of keys. When joining knots you watch that hoses were not overwound.

Rigid tubes of hydraulic lines are usually fixed on all length in special clamps. At removal of the line you watch that it was released from all clips. Do not forget at installation of lines to replace the failed clamps with the car.

When replacing brake lines you watch that replaceable components in accuracy corresponded according to the tiporazmerny characteristics to the old sections removed from the car. Do not replace steel tubes copper at all!

At installation of steel tubes you watch reliability of their fixing in all provided arms, collars and clips. Do not allow making of tubes excessively close from moving components of a suspension bracket and the steering drive.

Having finished installation of new sections of hydraulic lines, check liquid level in the GTTs tank. In case of need make the corresponding adjustment. Pump over the brake system (see Pumping of the brake system). Before starting operation of the car make sure of serviceability of functioning of brakes.


"on the page back
9.2. System of anti-blocking of brakes (ABS) - the general information and codes of malfunctions
on the following page"
9.4. Replacement of blocks of disk brake mechanisms of forward wheels