Mercedes S-Class W-140

In 1991-1999 editions

Repair and enterprise of the car



Mercedes S-Class
+ Mercedes Benz cars of the class S (W-140)
+ operation manual
+ Routine maintenance
+ motor
+ cooling systems, heating
+ systems of power supply and edition
+ electric equipment of the motor
+ gear shifting boxes
+ Awtomatitscheckaja transmission
+ connection
+ Brake system
- Aufhängung and management
   Precautionary measures
   Corners of the device of wheels of the car, klirens
   + suspension bracket of a forward axis
   + Back Aufhängung
   + management
+ body
+ electric onboard equipment



Corners of the device of wheels of the car, klirens

General information

Corners of the device of wheels influence immunity of the car, sale of tires and costs of fuel considerably. Values of corners are given in specifications.

The disorder
is an arrangement of a wheel at the vertical level concerning the average line of the car. It can be positive if wheels are inclined outside or negatively if wheels are inclined inside. The corner of a disorder influences uniformity of sale of tires of forward wheels mainly. If a disorder of a wheel it is positive, and another it is negative, so the car will take away to the party at the movement after straight lines.

Pre-trace
- side removal between wheels. The positive pre-trace means that wheels closer than to each other when behind at measurement at height of average point of a wheel are located ahead. The negative pre-trace means that wheels on bolschem removal are about each other as behind ahead.

The cross arrangement of an axis of change of a wheel
is a corner between an arrangement axis transitional Faust and a vertical which is carried out by point of strengthening of a wheel, in längslaeufigen the direction of the car seeing.

At the expense of corners of a disorder and a cross arrangement of an axis of change of point of contact of wheels with the road are closer to an axis transitional Faust. From this "the test shoulder" is supported it is so called, from this the management of the car is easier. Also blows of unevenness of providing will transfer less to management.

längslaeufige arrangement of an axis of change of a wheel.
The axis concerning which there is a change of a wheel is established indoors thus that its lower part is directed forward. Such corner of längslaeufigen of an arrangement is called positively. At positive value of a corner self-return of a wheel improves in average situation after change.

Conditions of check of corners of the device of wheels

Check of corners of the device of the car demands existence of smotrowoj of a hole or the special measuring elevator. When carrying out measurement it is necessary to stop the following conditions:
  • Air pressure in the tire corresponds to set;
  • Forward wheels are just put;
  • The car is not loaded, the tank is repaired completely;
  • Aufhängungen of the car is strong proschaty;
  • Management is settled;
  • The freedom of action in connection of navigators of tjag lies admissible in borders;
  • The freedom of action in the Aufhängung connection lies admissible in borders;
  • Depth of the drawing of a tire of tires of an axis is identical.
  • Regulation of forward wheels

    Disorder and längslaeufige arrangement of an axis of change of a wheel

    Regulation of a disorder and längslaeufigen of an arrangement of an axis of change of forward wheels - is made by means of bolt ekszentrikowogo

    Regulation of a disorder is carried out forward kulatschkowym by a bolt (19), and längslaeufige a corner of an arrangement of an axis of change of a wheel is regulated for ekszentrikowym a bolt (20) on the lower lever. By means of the same bolt regulation of a corner of längslaeufigen of an arrangement of an axis of change of a wheel is carried out.

    Pre-trace

    Check and regulation of a pre-trace of forward wheels


     EXECUTION ORDER

    1. Establish wheels in situation for just movement by means of institution (055).
    2. Check the central position of the tax mechanism and a steering wheel (shooter).
    3. Establish a ruler (030) between internal surfaces of forward wheels. Check a pre-trace of forward wheels.
    4. Regulation of a pre-trace is carried out by turn of navigators of tjag (10). The nominal size of a pre-trace of forward wheels forms 0 °35 '± 10' (watch specifications).

    Regulation of back wheels

    Disorder

    The size of a disorder of back wheels depends on height of a tourist strip of light (klirensa). The regulating characteristics are provided in specifications) to the modern chapter.

    Pre-trace

    Regulation of a pre-trace of back wheels

    The pre-trace of back wheels is regulated by ekszentrikowymi bolts (60a) on left and tjagach (60) on a support of back Aufhängung (50) is valid.

    Check of klirensa car bodies

    Check of klirensa car bodies

    Klirens of a suspension bracket of a forward axis of the car is checked by means of measuring establishment (01) between ekszentrikowymi bolts of strengthening of the lower lever.

    Klirens of back Aufhängung of the car will be by means of establishment (02) which is strengthened is checked for a power shaft of a back axis.