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Nissan Maxima QXsince 1993 releaseRepair and operation of the car |
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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 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 Removal of air from a hydraulic path of the drive of switching off of coupling Removal, check of a state and installation of components of assembly of coupling Removal, check of a state and installation of the release 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 check of a state Removal and installation of power shafts Check of a state 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 check of a state Torque transmission from transmission to driving wheels of the car is made by means of power shafts. The internal ends of both shaft enter directly the side gear wheels of differential equipped with reciprocal vents.External pins of shaft are also equipped with vents, passed throughout naves of driving wheels and fixed in them by big stupichny nuts. The internal ends of power shafts are equipped with the hinges of equal angular speeds (HEAS) of the sliding type providing freedom as an inclination of assemblies under various corners, and their longitudinal shift in the certain range. The basic working element of internal CV JOINTS is the bearing assembly of double compensation consisting of the ball-bearings placed between an internal holder and an external separator. Hinges can be disassembled for cleaning of components and check of their state. In case of detection of ineradicable defects the failed hinge is replaced assembled. The external ends of power shafts are equipped with Rzeppa CV JOINTS ("sheppa" is said) or "Birfield" which are also consisting of the 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 a possibility of longitudinal movement. These hinges are not subject to dismantling and in case of violation of serviceability of functioning have to be replaced. The condition of protective covers of CV JOINTS has to be checked on a regular basis. In case of identification of cuts or cracks the failed covers have to be replaced, and hinges are newly filled by fresh lubricant. Replacement of covers is made after preliminary dismantle of power shafts (see the Section Removal and installation of power shafts).
The most typical signs of wear/damage of CV JOINTS, besides lubricant loss, is emergence of the gnash proceeding from a stupichny part of forward wheels during commission of turns (usually the gnash is published by a wheel, internal on turn radius). Also the probability of emergence of similar sounds in combination with sharply accruing vibration is not excluded during acceleration of the car. For check of a condition of CV JOINTS it is necessary to grasp with one hand a shaft, another - the case of the hinge and, making attempts of rotation of components to the opposite sides, to estimate the size of the side play taking place. Existence of a little noticeable side play testifies to wear of shlits or internal components of bearing assembly. At the same time examine shaft on existence of cracks, deformations and other damages of the mechanical plan. |
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