4.3. Wheels and tires

Data of checks and agreements (nominal tariffs)
Convergence of wheels, mm:
halls

behind
- 2 … +2 (the most admissible difference between wheels - 1,5 mm)
2±2 (the most admissible difference between wheels - 2 mm)
Disorder of wheels, hail:
halls

behind

0 ° ±30' (the most admissible difference between wheels - 0 ° 30')
- 1 ° ±30' (the most admissible difference between wheels - 45')
Angle of longitudinal canvas of an axle of turn (cars with the direction amplifier):
standard
for the European countries and the Australia



2 °24 '±30'
2 °18 '±30'
Angle of longitudinal canvas of an axle of turn (cars without direction amplifier):
standard
for the European countries and the Australia



1 °54 '±30'
1 °40 '±30'
The most admissible difference between wheels
0 °30'
Irritated angle of canvas of an axle of turn of advanced wheels
13 ° ±30'
Distance between a point of intersection of an axle of turn of wheels advanced with the airplane of the way and the center of contact
tires with the way, mm
2,6
Retreat of advanced wheels, mm
±3 (they dispatch 1 mm)

Discs and tires of wheels
Type of discs
Steel, beaten
Discs size
4,5Jx13; 5,0Jx14
Tires size
155/80 R13, 175/65 R14, 185/55 R15
Pressure in tires, kgf/cm2
2,1
Spare piece (dokatny) goes round:
disc size
tire size
pressure in the tire, kgf/cm2

4,0tkh14
T105/70 D14
4,2

 Check and adjust of angles of installation of wheels
For the check of angles of the installation of advanced and rear wheels (an angle of longitudinal canvas of an axle of turn, disorder, a convergence and an angle of the rotation of wheels) through the computer bookcase install the car in the flat horizontal platform, establish wheels advanced in the provision of the right-lined movement. Before the check to be convinced of normal work of an advanced support of the triangular form of interruption and direction; check that the wheels done it will work they were in the provision of the movement in
straight line; one convinces that the pressure in tires finds the standard.
Check and adjust of corners
installations of advanced wheels

 Check and adjust of a convergence of advanced wheels

Fig. 4.52. Measurement of a convergence of halls
wheels

The convergence of advanced wheels (the sizes A and B or corner and +b) (fig. 4.52) is regulated by the rotation of directing sketches. The corner of a convergence of the left advanced wheel can be a reduced rotation of directing the sketch towards an advanced part of the car. The convergence of both advanced wheels is regulated by the rotation of both sketches of direction in an equal size.
The convergence of wheels advanced V-and t-m of being (0±2) mm.
  The moment of an inhalation of the fixation of a tip to direct the sketch of 50-55 N · m.

       Notes
Fig. 4.53. It works as a prompter of directing the sketch
In the agreement of a convergence they make spinning both sketches of direction in an identic size (fig. 4.53).
 Before the agreement of a convergence of advanced wheels they weaken an inhalation of extern collars of the fixation of protective coverings of the mechanism of direction to prevent what they twist.
On the ending of the agreement hints countersows insist of directing sketches and extern collars of coverings of the mechanism of direction.
Regulate a convergence of each wheel inside ±1,5 mm.
Disorder of advanced wheels
The corner of the disorder of wheels is established in the factory by the installation of a rotary fist below certain corner and in the moment of the Repair it is not subject to the agreement.
Corner of disorder of wheels 0 ° ±30'.

Angle of longitudinal canvas of an axle of turn of advanced wheels
The angle of longitudinal canvas of an axle of turn (it labels. 4.1) is established in the factory and is not subject to the agreement. In a detour of corner of the standard they substitute the deformed and damaged details of support of the triangular form of interruption.

4.1 fixes
Angle of longitudinal canvas of an axle of turn of advanced wheels
Value of control of a longitudinal corner
Cars with direction with the amplifier
Cars with direction without amplifier
For the European countries and the Australia
2 °18 '±30'
1 °40 '±30'
For other countries
2 °24 '±30'
1 °54 '±30'

       TO OBSERVE
Before the check of angles of the installation of advanced wheels they substitute the worn-out and damaged details of an advanced support of the triangular form of interruption.
It executes an inspection of angles of the installation of wheels through the equipment informático of the check of angles of the installation of rear wheels and halls.
The disorder of wheels and the angle of longitudinal canvas of an axle of the turn of advanced wheels establish in the factory and during the Repair they are not subject to the agreement.
In a detour of corners of the disorder and a longitudinal corner of an axle of the turn of the standard they substitute the inclination and damaged details of support of the triangular form of interruption.
The difference between a corner of the disorder and an angle of longitudinal canvas of an axle of the turn between the left and right wheels will be inside 0 ° ±30'.

 Check and adjust of angles of installation of rear wheels
The convergence of rear wheels is established in the factory and during the Repair it is not subject to the agreement.
Control values:
 – a convergence of rear wheels (2±2) mm (an admissible difference between the left and right wheels not more than 2 mm);
– disorder of rear wheels–1 ° ±30' (an admissible difference between the left and right wheels not more than 45').

Check of use of tires
Check the depth of the drawing of a protector of the tire.
Least admissible depth of the drawing of a 1,6 mm protector.
With a depth of protector that less the very permissible value, the tire substitutes.

       TO OBSERVE
 In the very use of a protective excessive permissible value the use indicators (of 1,6 mm) are visible.

 Check thrashes and wheels shift
Check thrashes of wheels
Lift the car and install it in supports.
Fig. 4.54. Check thrashes of wheels through indicative of type of hour

Sentry like (fig checks a thrashing of wheels through the indicator of. 4.54).
In the excess of the values thrash supplied down they substitute a wheel.
The very permissible wheels thrashing:
the wheels with the steel beat discs:
 – a 0,6 mm radial thrashing (middle value of the left and right wheels);
– 1,0 mm axial thrashing;
wheels with wheels of light league:
– 0,3 mm radial thrashing;
– 0,3 mm axial thrashing.
The moment of an inhalation of nuts of the fixation of wheels with the beaten steel and wheels of light league passes 90-110 N · m.

PREVENTION
In case of the use of a gaykovert they check the moment of inhalation through a dynamometer key.

Fig. 4.55. Order of an inhalation of nuts of fixation of wheels


Hold tight nuts transversalmente and re-examine the moment of an inhalation (fig. 4.55).

Wheels shift
Fig. 4.56. Scheme of shift of wheels

It executes the shift of wheels in one of the specified schemes (fig. 4.56).
Check of retreat and "shake" of the car. If it takes the car in a party, you turn adjustment, like shown down.
The commerce puts advanced wheels and stability of check of the car, having carried out a travel of proof.
If it takes the car in the same party again, substitute new advanced wheels.
If it takes the car in another party, commercial places ahead and rear wheels of each party and again carry out a travel of proof.
If it still takes the car in a party, again do business places advanced wheels and carry out a travel of proof.