Dacia SuperNova (engine E7J). Manual - part 64

 

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Dacia SuperNova (engine E7J). Manual - part 64

 

 

30

GENERAL

30 - 19

CHECKING OF THE   FRONT AXLE ADJUSTMENT

Case 1:
The symmetry dimension  “X” is correct-the value “A” is equaled distributed.

Case 2:
The symmetry dimension “X” is incorrect-read the value “A” on each side, adds it, and

calculate the average value, establishing the value for each side.

Example:
Right side value : A = 16;
Left side value   : A = 10;
16 + 10 = 26;

26 : 2 = 13;

Operating the steering rods tie bar, restore the same value for both sides  A = 13.
In this position, lock the rotating plates at zero point.
Check in the following sequence:

- camber angle;
- caster angle;
- parallelism;
- ball joint angle.

PARALLELISM  ADJUSTMENT

Loosen the lock nut (1) maintaining the tie

rod of steering connecting rod (2) in a fixed
position.

Act upon the tie rod  of steering connecting

rod taking into account its rotation sense of
in order to obtain the convergence or
divergence   and also the fact that one of its
complete rotation leads to an axial
displacement of 1,5 mm.

OBSERVATION
The opening between the wheel’s front

and rear is measured on a F=340 mm.

After obtaining the correct parallelism,

tighten the lock nut at the required moment
of 5 daNm.

30

GENERAL

30 - 20

Three situations may appear:

1.

 CORRECT

INCORRECT

Perform the same rotation number of the tie rod
connecting rod on left side and on the right side until
obtaining the same value ”A”.

2

. INCORRECT

CORRECT

Adjust the parallelism at the same value for left and

right

side ensuring the same value “A” on both sides.

3

. INCORRECT

INCORRECT

Perform first the repartition in order to balance the value
“A” on each side, than adjust the parallelism (see Case 2}.

 PARALLELISM   REPARTITION CORRECTION WHICH MUST PERFORMED

CHECKING OF THE   FRONT AXLE ADJUSTMENT

30

GENERAL

30 - 21

DIAGNOSIS

THE DEVIATION TO THE LEFT OR TO RIGHT AT STABLE SPEED

Perform the preliminary checking:
Wheels (front, rear) :

Joints clearance:

- pressure

- bushings

- dimensions
- types

Checking points heights

- balancing

- simetrie

A.m.
conditions
  are respected

Correct the deficient

The deviation

persists

Checking finished

Check  the front axle
steering geometry

The deviation

persists

NO

YES

NO

YES

YES

Check  the rear axle
parallelism and the alignment

A

   Checking finished

NO

CHECKING OF THE   FRONT AXLE ADJUSTMENT

30

GENERAL

30 - 22

A

The axle
adjustment
is correct

Checking finished

Replacement of damaged
elements

NO

YES

Deviation persists

Checking finished

NO

YES

Commute the wheels until
the deviation is balanced

CAPTION :

To check

Performed operations

DIAGNOSIS

CHECKING OF THE   FRONT AXLE ADJUSTMENT

 

 

 

 

 

 

 

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