5.2. Inquiry and check of direction
In the moment of each maintenance of the car they check a condition of a protective covering of the mechanism of direction, the hats of the hinges of sketches and the density of his landing. They it is necessary
to substitute in the presence of slits, slits and other defects that break tension.
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TO OBSERVE
All the amplifiers of the direction do different sounds during the work. One of the commonest sounds whistles in the turn of a steering-wheel in the constant car. This sound is heard specially well in the turn of a steering-wheel with the simultaneous pressing of a pedal of brake. This sound is not joined with the operabilidade of the direction in absolute. Do not substitute the distributor if only the sound assobiante is not too noisy. The new distributor will publish the weak noise also, and the bad functioning is removed with such a substitution not in all the cases.
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It is secured what in the moment of the right-lined provision of wheels of the car it to speak about a steering-wheel if it installs horizontally. Otherwise define a cause of the defect and remove it.
Facing a steering-wheel of an emphasis against the stop, check visually and auricularmente the next thing:
– confidence of fixation of a column of direction, direction of mechanism and direction of wheel;
– the lack of a slit in rubber hinges and metal and flexible of directing sketches, and also in connections of the elastic union of an end of a wheel;
– confidence of an inhalation and to bolt of pins of fixation of thirst of a torture of direction and nuts of fingers of spherical hinges;
– lack of the jammings and hindrances that interfere returns of a steering-wheel.
If the blows and the jammings are, desconectam angry sketches of rotary levers of telescopic tortures of a support of the triangular form of interruption and repeated check. Having convinced that the blows and the jammings come from the direction, withdraw that of the car and check the size of slit between an emphasis of a lath and a nut. The most admissible slit between an emphasis and a 0,2 mm nut. If necessary it substitutes worn-out details and adjusts a slit between an emphasis and a nut.
Check of free one to go round of a steering-wheel
Establish a steering-wheel in the provision of the right-lined movement and launch the motor.
Check that it releases to go round of a steering-wheel in his circle.
Release to go round of a steering-wheel it will be 0-30 mm.
In the excess of the specified value they check connections between the end of the direction and the walk of direction.
Check of angles of rotation of wheels
Install the car for wheels advanced in the rotary bookcase and check angles of the rotation of wheels (fig. 5.1).
The angle of the rotation of wheels (the car without overdoing):
I intern..... 37 ° ±1 °30'
day-pupil..... 33 °03'
If the angles of the rotation of wheels do not correspond to the specified values, they adjust a convergence of wheels and again they check angles of the rotation.
The check of a condition of hints of directing sketches
Check of the moment of the resistance to a provorachivaniye of fingers of spherical hinges of hints of directing sketches
One convinces of the lack of an excessive slit in the spherical hinge of a tip of the sketch, becoming several times to hinge of a few detours of finger.
I wrap up a nut of fixation of a finger of the hinge of sketch and check the moment from resistance to a provorachivaniye of a finger of the hinge (fig. 5.3), it will be the same as 0,5-2,5 N · m.
If the moment from the resistance to a provorachivaniye exceeding the specified superior limit, substitutes a tip of directing the sketch.
If the moment from the resistance to a provorachivaniye of a finger of the hinge it will specify less than lower limit, it checks a slit in the hinge and if necessary it substitutes it.
Check of effort of turn of a steering-wheel in the constant car
Put the car in the flat horizontal platform, establish a steering-wheel in the provision of the right-lined movement.
Increase the frequency of the rotation of an end of inclination (up to 1000±100) minute 1.
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TO OBSERVE
After the check the lowest motor had seen to turns they waste time.
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Through spring scales they check the effort of the turn of a steering-wheel, turning it in 1,5 turns in both parties (fig. 5.4).
The effort of the turn of a steering-wheel in the motionless car will do 29 N (3,0 kgfs).
During the rotation of a steering-wheel is convinced of the lack of sharp modifications of the effort.
In the increased effort of the turn of a direction a wheel they carry out the next checks and agreements:
– check spherical hinges of hints of directing sketches and protective shelters of the existence of slits or damages;
– check the moment of a provorachivaniye of a wheel of gear of driving of the mechanism of direction and the spherical hinges of the hints of directing sketches;
– moment of a provorachivaniye of the spherical hinge.
Check of return of a steering-wheel to provision of the right-lined movement
Check the spontaneous return of a steering-wheel in the next parameters.
When it executes effort of bends hairpin or moderated in a steering-wheel and his return will be identic in the left and right turns.
After the turn of a steering-wheel in 90 ° and his care inside several seconds during the movement of the car in a 35 km/h speed to launched steering-wheel will turn not less than in 70 ° towards the neutral situation.
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TO OBSERVE
In the very much closed curve of a steering-wheel the increased resistance can be felt quickly. It is not a sign of bad functioning and one adheres with some reduction in the offer of the bomb of the hydraulic auxiliary rocket.
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Check of a condition of the hydraulic auxiliary rocket
Check a deflexão of a belt of the walk of the bomb of the hydraulic auxiliary rocket, when it was held tight with the effort by 98 N (10 kgfs) at the place specified by a fig of arrow. 5.5.
The deflexão of a belt of the walk of the bomb of the hydraulic auxiliary rocket will be 6-9 mm.
In the discrepancy of a deflexão of a belt to the specified limits they adjust a tension of belt, like shown down.
Weaken an inhalation of a pin of the agreement of a tension of a belt of the walk of the bomb (fig. 5.6).
Insert the convenient lever between an arm and the bomb, adjust a tension of belt up to the necessary turn of size of an accommodation of bomb (fig. 5.7).
Hold tight a pin of agreement.
Check a tension of a belt and if necessary the agreement repeats.
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PREVENTION
Several times become a belt of walk of bomb in the normal direction and re-examine a deflexão of belt.
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Check of level of liquid in a tank of the hydraulic auxiliary rocket
Install the car in the flat horizontal platform.
Launch the motor. In the motionless car several times without intervals spin a steering-wheel to heat up of the work liquid up to the temperature of 50-60 °C on the right on the left.
During the Repair of the motor that wastes time several times spin a steering-wheel of an emphasis against the stop.
Give birth to the motor and check a liquid difference of level in a tank in the motionless motor and of work.
If the liquid level was modified not less than in 5 mm, bomb on the system of the hydraulic auxiliary rocket again.
If agudamente it increases the level of liquid after a motor stop, again pump on the system.
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TO OBSERVE
The incomplete air removal causes the noise of jingle of the bomb, the increased racket of the Repair of the distributor and reduces the useful life of bomb.
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Substitution of liquid of work of the hydraulic auxiliary rocket
Lift an advanced part of the car before posting of wheels and establish in supports.
Desconecte a hose of drain of a tank of a hydraulic acionador and deaden an opening of tank.
Annex a hose of vinyl to a drain they water with hose and lower his end in the prepared capacity.
Desconecte a wire of high voltage of the roll of ignition.
It establishes the liquid of the system, being in charge several times lighting and of an author and spinning a steering-wheel in both parties against the stop.
Annex a hose of drain to a tank and confiantemente fix it for a collar.
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TO OBSERVE
The volume of liquid PSF-3 of the petrol station of the system does 0,75-0,8 l.
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Fill out the liquid of the necessary mark in a tank of the hydraulic auxiliary rocket.
Launch the motor.
Be convinced about the lack of the drop of liquid through the connection of a hose, it gives birth to the motor.
Add the liquid to the lowest part of the filter of a tank of the hydraulic auxiliary rocket.
Withdraw the air of the system.
Removal of air of system of the hydraulic auxiliary rocket
Desconecte a wire of high voltage of the roll of ignition. To light and of an author during 15-20 with, five six times spins a steering-wheel of an emphasis against the stop.
If the extraction through bomb is executed during the motor Repair will waste time, the air will come to the liquid. Therefore, execute only to pump when an author is rolling up the motor.
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TO OBSERVE
During the extraction through bomb they add the liquid in a tank so that his level did not fall below of the filter.
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Annex a wire of high voltage to the roll of the ignition and launch of motor wastes time.
Spin a steering-wheel even in the liquid in a tank there are no air blisters.
One secure that the liquid did not become the color of milk, and his level is between etiquettes I "MOVE" and "DRAFT" in a wall of a tank (fig. 5.9).
It is secured what the liquid level in a tank lightly modifies in the turn of a steering-wheel in both parties.
Extraction through repeated system bomb:
– if the liquid level was modified more than in 10 mm;
– if the liquid level agudamente increases in a motor stop.
Check of pressure of violence of the bomb of the hydraulic auxiliary rocket
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Fig. 5.10. The connections scheme checking pressure of violence of the bomb of the hydraulic auxiliary rocket: 1 – they control the manometer (09572-21000); 2 – thermometer; 3 – adaptador (09572-22100); 4 – tank; 5 – adaptador of the manometer (09572-21200); 6 – mechanism direction
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Desconecte a hose of the high pressure of the bomb. Annex to the bomb and a hose of the high pressure the device of the check of the pressure, like shown in the fig. 5.10.
Pump on the system, soon launch the motor and heat the liquid of work up to the temperature of work (approximately 50-60 °C), being in charge several times spinning a steering-wheel.
Increase the frequency of the rotation of an end of inclination (up to 1000±100) minute 1.
Close the crane of the manometer and check the agreement of the pressure of liquid to the specified limits.
Pressure of violence of the bomb of the hydraulic auxiliary rocket of 8,3-8,8 MPas (85-90 kgfs/cm2).
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PREVENTION
There is allowed to close the crane of manometer during the period of not more than 10 pages.
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If it does not guard the pressure inside the specified limits, repair the bomb.
Withdraw devices of control and annex a hose of the high pressure to the bomb, hold tight the union the moment of 55-65 N · m.
Pump on the system.