Nissan Maxima QX

since 1993 release

Repair and operation of the car



Nissan Maxima QX
+ Cars of the Nissan Maxima brand
+ Maintenance instruction
+ Settings and routine maintenance
+ Engine
+ Cooling systems, 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
   Check of a state, removal and installation of a brake disk
   Replacement of boots of drum brake mechanisms of back wheels
   Removal and installation of wheel cylinders
   Removal and installation of the main brake cylinder
   Replacement of the dosing valve regulator
   Check of a state and replacement of brake lines and hoses
   Pumping of the brake system
   Check of serviceability of functioning/tightness, replacement and adjustment of the vacuum amplifier of brakes
   Adjustment of the parking brake
   Replacement of a cable(s) of the 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



Check of serviceability of functioning/tightness, replacement and adjustment of the vacuum amplifier of brakes

Check of serviceability of functioning

 PERFORMANCE ORDER

1. Without starting the engine, several times squeeze out a pedal of a foot brake. Make sure of lack of changes in the size of the reserve course of a pedal (distance between a pedal and a floor).
2. Holding a pedal of squeezed out, start the engine. If right after start the pedal slightly "fails", therefore, the vacuum amplifier of brakes works regularly.

Tightness check

 PERFORMANCE ORDER

1. Start the engine for a couple of minutes, then muffle. Several times slowly squeeze out a pedal of a foot brake. If at first the pedal course with each squeezing is gradually reduced, however, through three-four musclemen is stabilized, so tightness of assembly of the vacuum amplifier is not broken.
2. Squeeze out a pedal of a foot brake at the working engine. Holding a pedal of squeezed out, kill the engine. If 30 seconds of keeping of the pedal pressed its reserve course later does not change, therefore, tightness of assembly of the vacuum amplifier is not broken.

Check of size of a vystupaniye of a rod of a pusher

 PERFORMANCE ORDER

Remove from the vacuum amplifier assembly of GTTs (see the Section Removal and installation of the main brake cylinder).

 Need for a detachment from GTTs of hydraulic lines is absent, - track that they were not deformed in the course of assembly assignment. By means of the manual vacuum pump create depression about 508 mm Hg in depth in assembly of the servo-driver of the brake amplifier, press on a pusher rod with effort about 2 kgfs and measure rod vystupaniye length. Compare result of measurement to requirements of Specifications, in case of need replace assembly of the amplifier.

REPLACEMENT

 PERFORMANCE ORDER

The block of the vacuum amplifier of brakes is not subject to recovery repair and in case of refusal has to be replaced assembled.

1. Remove GTTs (see the Section Removal and installation of the main brake cylinder).
2. Disconnect the vacuum hose brought to the amplifier from the engine. Try not to damage a hose, removing it from the union on assembly of the amplifier.

3. In interior of the car remove the lower section of finishing of the panel and find knot of connection of a rod of a pusher of the vacuum amplifier to a pedal of a foot brake (in case of need use a pocket small lamp).

4. Take the forelock, take out a cylindrical pin and disconnect a cutting finger of a pusher from the pedal lever.
5. From salon give four nuts of fastening of assembly of the vacuum amplifier to a partition of a motive compartment, remove washers (in case of need use a pocket small lamp).
6. Pass into a motive compartment and remove assembly of the vacuum amplifier from a back partition. Pull assembly strictly on an axis of its installation until the pusher rod completely is not released from a partition. Take assembly from a motive compartment.
7. Installation is made upside-down (previously check correctness of installation of the adjusting sizes).

ADJUSTMENT

 PERFORMANCE ORDER

Measure distance from the face surface of assembly of the vacuum amplifier to an opening in a cutting finger of a rod of a pusher. Compare result of measurement to requirements of Specifications, in case of need weaken a lock-nut and rotation of a cutting finger achieve the required value. Do not forget to tighten a lock-nut.