Infiniti QX4 service since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
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 condition 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-type brake mechanisms of back wheels
9.8. Removal and installation of the main brake cylinder (GTTs)
9.9. Removal and installation of assembly of the vacuum amplifier of brakes
9.10. Pumping of brake system
9.11. Adjustment of a 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 темпостата
9.15. Removal and ABS hydromodulator installation
9.16. Removal and G-sensor installation
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 the driving electromotor 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 condition 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 leakages of liquid, swellings and other damages. Hoses are a critical and most vulnerable component of brake system therefore their survey should be made 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 always can be got at firm car repair shop of the company manufacturers of the car, and also in firm shops of automobile accessories.

At all do not use as replaceable any tubes, except firm, specially intended for installation in a brake contour of your car.

At installation of brake lines watch, that they settled down on removal not less than 20 mm from moving or vibrating components of a body, a suspension bracket or a steering drive.

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

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

For a detachment of a brake hose from a support turn out a hollow bolt of shtutserny connection and 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 usual rozhkovy keys. When joining knots 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 watch, that it was liberated from all clips. Do not forget at installation of lines on the car to replace the failed clamps.

At replacement of brake lines watch, that replaceable components in accuracy corresponded according to the tiporazmerny characteristics to the old sections removed from the car. At all do not replace steel tubes copper!

At installation of steel tubes 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 a 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 brake system (see. Pumping of brake system). Before starting operation of the car make sure of serviceability of functioning of brakes.


«on 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