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
   General information
   Coupling - the general information and check of a condition of components
   Removal and installation of the main cylinder of coupling
   Removal and installation of the executive cylinder of coupling
   Air removal from a hydraulic path of a drive of switching off of coupling
   Removal, check of a condition and installation of components of assembly of coupling
   Removal, check of a condition and installation of the vyzhimny bearing and lever of switching off of coupling
   Adjustment of a pedal of coupling
   Check of serviceability of functioning and replacement of the sensor switch of disconnection of a chain of a starter
   Power shafts - the general information and condition check
   Removal and installation of power shafts
   Check of a condition and replacement of assembly of the basic bearing
   Replacement of protective covers and check of a condition of CV JOINTS
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


Power shafts - the general information and condition check

Torque transfer from transmission to driving wheels of the car is made by means of power shafts. The internal ends of both shaft enter directly into the lateral gear wheels of differential equipped with reciprocal shlitsa.

External pins of shaft are also equipped with shlitsa, are passed in naves of driving wheels and are fixed in them by big stupichny nuts.

The internal ends of power shafts are equipped with hinges of equal angular speeds (CV JOINT) of the sliding type, providing freedom as inclination of assemblies under various corners, and their longitudinal shift in a certain range. The basic working element of internal CV JOINTS is the bearing assembly of double compensation consisting of ball-bearings, placed between an internal holder and an external separator. Hinges can be disassembled for cleaning of components and check of their condition. In case of detection of ineradicable defects the failed hinge is replaced assembled.

The external ends of power shafts are equipped with Rzeppa type CV JOINTS (it is said “шеппа”) or “Birfield” which are also consisting of ball-bearings, placed between an internal holder and an external separator, however a design of these hinges, unlike internal, provides only angular degree of freedom of components, at total absence of possibility of longitudinal moving. These hinges are not subject to dismantling and in case of violation of serviceability of functioning should be replaced.

The condition of protective covers of CV JOINTS should be checked on a regular basis. In case of identification of cuts or cracks the failed covers should be replaced, and hinges are newly filled by fresh greasing. Replacement of covers is made after preliminary dismantle of power shafts (see. Section Removal and installation of power shafts).

 In shops of automobile accessories it is possible to meet covers of CV JOINTS of a cutting design. Installation of such covers can be made on the shaft established on the car, it is not recommended what to do, as at replacement of covers always it is necessary to check internal state of hinges.

The most typical signs of wear/damage of CV JOINTS, besides greasing loss, is emergence of the gnash which is starting with a stupichny part of forward wheels during commission of turns (usually the gnash is published internal on turn radius by a wheel). The probability of emergence of similar sounds in a combination to sharply accruing vibration is not excluded also during car acceleration. For check of a condition of CV JOINTS it is necessary to grasp one hand a shaft, another - for the case of the hinge and, making attempts of rotation of components to the opposite sides, to estimate size taking place люфта. Existence a little appreciable люфта testifies to wear шлицов or internal components of bearing assembly. At the same time examine shaft on existence of cracks, deformations and other damages of the mechanical plan.