Nissan Maxima QX

since 1993 of release

Repair and car operation



Nissan Maxima QX
+ Nissan Maxima brand Cars
+ Maintenance instruction
+ Settings and routine maintenance
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Control systems of the engine
+ Transmission
+ Coupling and power shafts
- Brake system
   General information
   System of anti-blocking of brakes (ABS) - the general information and codes of malfunctions
   Replacement of brake shoes of disk brake mechanisms
   Removal and installation of supports of disk brake mechanisms
   Condition check, removal and installation of a brake disk
   Replacement of boots of drum-type brake mechanisms of back wheels
   Removal and installation of wheel cylinders
   Removal and installation of the main brake cylinder
   Replacement of the dosing-out valve regulator
   Check of a condition and replacement of brake lines and hoses
   Pumping of brake system
   Check of serviceability of functioning/tightness, replacement and adjustment of the vacuum amplifier of brakes
   Adjustment of the parking brake
   Cable replacement (ов) drive of the parking brake
   Adjustment of a pedal of a foot brake
   Check of serviceability of functioning and replacement of the sensor switch of stoplights
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment





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Removal and installation of the main brake cylinder

Components of assembly of GTTs

1 — a tank Cover
2 — the Mesh filter
3 — the Float
4 — the tank Case
5 — plugs Through passage
6 — the Built-in double-thread regulator of pressure (the dosing-out valve)
7 — the Nut (8 ÷ 11 Nanometer)
8 — the Returnable spring

9 — the Plate of a spring
10 — the Piston with a sealing cuff
11 — the Piston with a sealing cuff
12 — the Lock cover
13 — Assembly of the primary piston
14 — Assembly of the secondary piston
15 — Models without ABS
16 — Models with ABS


 Failed GTTs is subject to replacement. Manufacturers do not recommend to undertake attempt of carrying out regenerative repair of the main brake cylinder.

REMOVAL

 PERFORMANCE ORDER

1. Disconnect a negative wire from the battery.

 If the stereosystem established on the car is equipped with a security code before disconnecting the battery make sure that have the correct combination for audiosystem input in action!

2. The design of the main brake cylinder is presented on an illustration.
3. Disconnect electroconducting from the sensor switch of level of brake liquid.
4. Pump out from the GTTs tank as the bigger amount of the liquid which was in it (use a syringe or a rubber pear) is possible.
5. Enclose rags under shtutserny connections and prepare caps or plastic bags for a blockage of the open ends of brake lines for the purpose of hit prevention in dirt system.

 Brake liquid is among aggressive chemical compounds and at contact to body panels destroys a paint and varnish covering. Before starting performance of procedure cover wings and the panel of a front of the car with special covers, or simply old blankets. By means of a special cap natural a cutting head weaken nuts of shtutserny knots of connection to GTTs of brake lines.

6. Having slightly delayed outside, separate brake lines from unions of the main cylinder. At once закупорьте open ends of tubes.

7. Release two fixing nuts and separate the main cylinder from assembly of the brake amplifier. Remove the cylinder from fixing hairpins and take it from an impellent compartment (try not to spill filling assembly hydraulic liquid on the painted body panels). Remove and will throw out old sealing laying of landing of GTTs on the block of the vacuum amplifier of brakes, - at assembly laying is subject to replacement without fail.

And Contact socket of connection of electroconducting of the sensor switch of level of brake liquid
In Shtutsernye sockets of connection of hydraulic lines
About Fixing nuts

INSTALLATION

 PERFORMANCE ORDER

1. Before installation new GTTs is necessary for pumping over on a workbench. For convenience clamp a landing flange of the cylinder in a vice with soft sponges. Further it is necessary to manipulate at the same time the piston in the cylinder and to watch a stream of the brake liquid which is pushed out through the final union.
2. Connect to the GTTs final unions pair of tubes from a special set for pumping (ask in shops of automobile accessories).
3. Fill in in the tank fresh brake liquid of a demanded grade (see. Head of Control and routine maintenance).
4. Slowly push pistons in the cylinder (it will be most convenient to use a big screw-driver with a crosswise sting), - air should start to leave delivery chambers in the tank. It is thus important, that the ends of both tubes were completely shipped in the brake liquid which was in the tank to exclude probability of a podsasyvaniye of air back in the cylinder at an otpuskaniye of pistons.
5. Continue pumping until liquid pushed out through tubes completely will not be released from air bubbles.
6. Serially disconnect tubes, at once corking the open ends of entrance openings. Close the GTTs tank a cover.
7. Put on GTTs hairpins on assembly of the vacuum amplifier and while only by hand, tighten fixing nuts.
8. Screw in the cylinder unions of brake lines. As the cylinder is not fixed yet finally, its situation can be corrected slightly for the purpose of simplification of procedure of a vvorachivaniye of unions - try not to strip a thread.
9. Tighten with demanded effort of a nut of fastening of GTTs, then densely tighten shtutserny connections.
10. Fill in in the GTTs tank fresh brake liquid and pump over hydraulic system (see. Section Pumping of brake system). GTTs pumping on the car (if did not do it on a workbench) will need the help of the assistant which will manipulate a pedal of a foot brake. Ask the assistant to squeeze out several times a pedal, then to fix it in the bottom situation. Weaken a shtutserny nut, letting out from the cylinder an air mix with brake liquid. Repeat procedure until pushed-out liquid completely will not be released from air bubbles. Operating in a similar manner, pump over the second union.

 Hold near at hand pure rags for the purpose of immediate removal of traces of brake liquid getting on painted body surfaces.

11. Before starting car operation, make sure of serviceability of functioning of brakes.