Among all the parts of the suspension, the swivel fist of VAZ 2107 is distinguished by its strength and durability. However, in the process of repairing the front suspension, sometimes you have to remove it and put it in place, or change to a new one. You can do it with your own hands, for this you need a minimum of tools and devices. And necessarily - the WD-40 means, since the threaded compounds of fastening the swivel fist are usually in a very poor condition.
Futing Fist VAZ 2107
The swivel fist holds the hub of the front wheels and is fixed on the top and bottom levers of the front suspension on the ball supports. When turning the steering wheel, the gear lever through the steering traction pulls the swivel fist in one direction or another, providing the rotation of the front wheels and change the course of the car.
The item is made of durable cast iron and is able to withstand heavy loads. Often car owners change the VAZ 2107 rotary lever assembly, along with the hub and the wheel bearing. The term of "life" of the swivel lever under normal conditions (in the absence of an accident) is much larger than the hub bearing. Therefore, it is better to immediately change them assembly and forget about this node for a long time.
Signs of the Malfunction of the Rotary Lever VAZ 2107
The most frequent malfunction of the rotary lever is deformation. It can be caused by a strong blow to the suspension when driving road irregularities or physically influence as a result of an accident. You can notice a malfunction in three main features:
- lavigating the car from the trajectory while moving ("seven" is pulled left or right on a flat road);
- rapid rubber wear on the front wheels;
- the play of the hub bearing as a result of the wear of the axis.
The first two features can be an indicator of the inconsistency of the angles of collapse-convergence regulatory. Therefore, to make sure that the swivel fist is malfunction, it is necessary to diagnose the front suspension. Sometimes the reason lies in the wrong adjustment of the angles of the installation of wheels or wear steering or silent blocks. Otherwise, it is necessary to replace the swivel fist on the VAZ 2107.
What you need to replace the VAZ 2107 swivel fist
Before changing the swivel fist on the VAZ 2107, you need to stock such tools and liquids:
To replace the swivel fist you will need:
- set of wrenches;
- jack;
- cylinder key;
- anti-tooth shoes;
- the puller for ball supports and steering;
- wD-40 liquid.
After replacing the swivel fist, you will have to pump the brake system. Therefore, you will need another brake fluid and the influence for it, as well as a flexible hose.
How to change the swivel fist vaz 2107
To replace the lever, you need to know how to remove the swivel fist on the VAZ 2107. This is done as follows:
- to substitute the rear wheels with anti-tart shoes;
- raise the parking brake lever;
- weaken the tightening of the front wheel fastening bolts;
- raise the front wheel of the jack;
- process threaded compounds with WD-40;
- unscrew the steering tip nut;
- using the puller to reflect the steering tip from the fist;
- unscrew the brake hose mounting bolt;
- disconnect the brake hose;
- substitute for the bottom lever emphasis;
- lower the car on the jack so that the lever lay down on the emphasis and the suspension spring slightly squeezed;
- unscrew the nuts fastening the lower and top ball support;
- remove ball supports using the puller;
- remove the swivel fist.
When the VAZ 2107 swivel fist is removed, it is necessary to check the status of the brake caliper and the hub bearing and the hub itself. If they are in order. You can rearrange the details on the new lever. Otherwise, it is necessary to replace them with new ones.
The installation of the turning fist of the VAZ 2107 is performed in the reverse order.
Attention: after the lever is installed, it is necessary to pump the brake system to get rid of the air, which inevitably falls into the front brake circuit.
Rotary fist takes off when replacing the bearing of the hub, the repair of the front suspension rack.
Removal
In order not to damage the bearing of the front wheel hub is not allowed:
- to relax and tighten the front wheel hub fastening nut on the wheel standing on wheels;
- Lower the car on the wheels when the front wheel drive shaft is removed or with a loose front wheel hub fastening nut.
Install the car on the lift.
Unlock steering wheel.
Remove the front wheel.
Remove the speed of rotation speed sensor;
Disconnect the front brake assembly from the swivel fist and hang it to the front suspension spring.
Install the front wheel stop on the hub and fasten it with two wheels (stop ROU. 604-01, shift head 17, gorotok).
Unscrew the nut 10, picture 1 , fastening the wheel of the front wheel, remove the nut, remove the focus (replacement head 32, shift head 17, gorotok).
Remove the front brake brake disc;
Remove the front brake brake disc cover.
Disconnect the tip of the steering thrust from the turntable lever.
Unscrew the nut 7 bolt of fastening the ball support lever of the front suspension to the twilty fist and disconnect the fist 3 from the lever 9 (the key of the ring 16, the head removable 16, the extension, and the knot).
Remove the front suspension lever with a ball support a remote washer.
Unscrew the two nuts of 2 swivel fist bolts to the front suspension rack and remove bots (wrench 18, shift head 18, gorotok).
Press out the front wheel of the drive shaft from the wheel hub and remove the swivel fist with the hub assembly.
Installation
Attention. The fasteners listed below are subject to mandatory replacement:
Nut fastening of the wheel of the front wheel;
Nut bolt fastening ball support front suspension lever;
The nuts of the filling bolts of the swivel fist to the front suspension rack.
Attention. Bolt mounting ball support of the lower front suspension lever to the twilty fist set the head in the direction of the front of the car.
Install the slot shank drive shaft front wheel in the front wheel hub.
Install the swivel fist on the front suspension rack, insert the mounting bolts and wrap, without tightening, new nuts 2 (wrench 18, replacement head 18, ratchet key).
Install on the finger of the ball support 4, figure 2. , front suspension lever remote washer 3.
Install the finger of the ball support lever of the front suspension into the swivel fist, install the fastening bolt and wrap the new nut.
When assembling, the boil 2 remote washer 3 should get into the slot 1 of the terminal compound on the swivel fist. Tightening torque of 62 nm nuts (6.2 kgf.
Tighten the nuts filling bolts to the front suspension rack. Tightening torque of nuts 105 nm (10.5 kgf.m) (wrench 18, replacement head 18, point key)
Connect the tip of the steering thrust to the turntable lever.
Install the front brake brake disc housing;
Install the front brake brake disc.
Install the front wheel on the hub focus and secure it with two wheels bolts.
Wrap a new front wheel hub fastening nut and remove the stop. Tightening torque 280 nm nuts (28.0 kgf.m) (replaceable head 17, shift head 32, gorotok, torque key).
Install the speed wheel speed sensor;
Install the front brake assembly.
Install the front wheel. Press the brake pedal 2 - 3 times to set the pistons of wheel brake cylinders to the working position.
Check and if necessary, adjust the angles of the installation of the front wheels.
Without a swivel fist, which is the wheel suspension part, it would be impossible to control the usual car. It is thanks to him and a turn of a car wheel in different directions is carried out. As a rule, on such a relatively small, but very important item is made by almost all forces that are associated with the longitudinal and transverse braking of the car, so the swivel fist is exposed to a large risk of breakdowns or depreciation. In this article, we will tell you that the swivel fist is, as well as we describe in detail how to make its correct replacement in the event of a malfunction.
1. What is the swivel fist
As we have already mentioned above, thanks to the rotation of the swivel fist, the wheel is controlled in standard vehicles. The swivel fist is an indispensable wheel of the wheel suspension. Also on the swivel fist, as a rule, an installation of a wheel hub bearing block is made, which serves as a bearing support wheel of automotive vehicles. The swivel fist is usually installed towards the center of the car on the chassis directly on the sandrarian, and attached by the guide links of the wheel suspension (the so-called levers of independent wheel suspension).
Often thanks to the top and bottom levers of independent suspension wheels, which directly affect the swivel fist, for the latter, peculiar gravity centers are set. Moreover, a line that produces the connection of both centers of gravity forms a swivel axis for turning a fist, which, as a rule, passes in the space at an angle.
In order for the fist to turn and, accordingly, the rotary fist lever (the so-called rotary trapezer lever is also used. It properly acts on the swivel fist, and the forces are transferred to it that affect the wheels when the car is rotated, for example, by means of a steering trapezium. The steering fist, by virtue of his swivel function in relation to the wheel, which is established on it, in the people "dubbed" also a swivel support of the wheel.
As we have already mentioned above, along with the transfer of turn on the installed wheel, the swivel fist takes over all those forces that act directly on the wheel, because it acts not only the weight of the car, and almost all the forces that are associated with longitudinal and transverse braking. car. Based on this, the swivel fist must be made of durable, wear-resistant material.
It is important to know that while driving the car in direct direction of movement of the wheels should be constantly in perfect parallels with a longitudinal axis of the car; But such an ideal match does not always happen, since, for example, the result of an elastic deformation in the parts of the wheel suspension becomes the convergence of the front wheels during the acceleration, during the front drive, inside. During the perfect movement along the line curve, it can also be said that with neutral dynamic properties of the wheel are rotated so that you can install the perfect angle of wheel convergence.
At the time of the established radius of curvature and with certain speed indicators, this perfect position of the wheels in the rim should provide the power of the side of the wheel, which is in the correct ratio with the corresponding normal force that acts on each individual wheel. If we talk about the position of the axis, this means that the forces of the lateral injection should be activated with the axial load. If the correspondence is broken, the dynamic properties acquire the nature of excessive or insufficient turning.
2. How to replace the swivel fist
As we said, the swivel fist is put into operation in order to take over and withstand the efforts emanating from wheel impacts about the uneven road fabric, as well as to create an angle of rotation for the wheels, with which the car itself is controlled. As a rule, the material from which the swivel fist is made, serves high-strength alloy steel 30s or 40x, and in the process of the manufacturer it should be respected by a high accuracy of geometric sizes for the installation of parts that are conjugated.
During the operation of the car, the surface of the axle is subjected to wear for. Often this leads to an increase in the back of the front wheels. According to experts, this defect of the swivel fist at the time of movement may cause difficulties in managing the vehicle. When exposed to loads that exceed the permissible and cause a change in stiffness indicators, as well as due to the fatigue of the upper layers of metal and the action of the friction forces, they can "emerge" and a variety of swivel defects.
This kind of defects include wear of the fasteners, cracks of different sizes, thread damage and others. If you suddenly discovered at least one of these defects, be sure that the swivel fist should urgently change to the new one.
In order to quickly and efficiently replace the swivel fist, do not be lazy and read the instructions indicated by us below. So, proceed to work. First you need to collect together all the auxiliary tools that you will need during the replacement process. So, you will need: special tool for assembling / disassembling hubs, ball hinge puller, special key, as well as support and ottoman. After you have collected all the tools, you can proceed to the process of replacing the swivel fist.
To begin with, we raise the front of the car and install the insuring supports in the appropriate places. After that, we remove the wheeled nuts, and behind them and the front wheel. Then we carry out for turning the brake hose fastening bolts.
After that, we are taken for removing the caliper. To do this, we screw the caliper fastening bolts and remove the last rear wheel bearing support. In order not to cause any damage to the caliper and the brake hose, experts advise consuming the caliper on the car body with a piece of wire. Make sure that the brake hose is not very hiped.
Next, we are engaged in the removal of the wheel speed sensor from the swivel fist. No need to disconnect the wheel speed sensor connector. After that, we lift the locking pin and remove the hub nut.
Then we turn the 6-millimeter brake disc bolts, and then remove from the front hub. If you find that the brake disc is pumped into the front hub, you need to screw two bolts of 8 x 1.25 mm in the brake disc for removing it from the hub. At the time of doing this operation, it is important to ensure that each bolt turns alternately by 90 degrees. All this is done to prevent the disk skew. Also, do not forget to check the front hub - it should not have any damage or cracks.
After that, remove the pin from the ball hinge at the end of the steering thrust, and then remove the nut. Please note that when assembling you need to tighten the nut, then install a new pin and bend it ends.
Next, using a special tool, disconnect the ball hinge steering thrust from the swivel fist. Then we turn the flange bolt and the flange nut on the lower rod. As a rule, at the time of installation, you should install a new flange bolt and new flanged nuts. Slightly tighten all three fasteners, then starting with flange nuts, tighten them to the set point.
So, you can sigh with confidence: most of the work has already been completed. Now you need to collect all the strength and bring the work started to the victorious end. To do this, disconnect the housing of the lower hinge from the lower traction and remove the shock absorber plug bolts and self-locking nuts with. At the time of installation, you need to install new shock absorber fastening bolts and new self-locking nuts.
By hitting the end of the drive shaft by plastic hammer and, at the same time, pulling out the hub outside, remove the outer hinge of the drive shaft from the swivel fist. After that, we can remove the swivel fist. According to experts, it is strictly forbidden to pull the drive shaft outward. This can cause disassembly of the inner hinge of the drive shaft.
After that, we carry out the removal of the locking pin from the housing of the lower hinge, and then remove the nut. During the installation, it is important to tighten a new crown nut, then install a new locking pin.
Next - it's small. Disconnect the housing of the lower hinge from the swivel fist using a special tool. That's all! So you can remove the swivel fist from the car. The installation of the swivel fist is carried out in order to remove, but you also need to take into account some rules set out below ...
So, the first thing I would have to focus on, this is that at the time of the installation of the swivel fist, you need to take care that the protective cover of the ball hinge is damaged. Secondly, it is very important to tighten all the threaded connections to the recommended point.
Before you take for the attachment of the lower ball hinge to the steering fist, it is necessary to delete lubrication residues directly from the thread and the landing surface of the ball hinge, as well as from the surface of the hole of the swivel fist and from the contiguous surface of the crowning nuts.
You should also first collect all the parts that are part of the part and slightly tighten the bolts and nuts. Then we put the lift the suspension so that it accounted for all the weight of the car, after which we drag them completely until the recommended point.
It is also necessary to monitor that a crown nut is tightened to the lower torque limit, and then you need to trust it only before the coincidence of the slot with the hole in the ball finger. Do not wait for the coincidence of the slot with the hole weakening the nut.
With a secondary assembly, experts advise to use a new nave nut. Before installing the hub, you should lubricate the wallable plane of the hub nuts with a minor amount. After the tightening, crimp the deformable edges of the nut at the end of the drive shaft.
Before being taken for the installation of the brake disc, you need to clean the seat hub sectors. Before you put the wheel in your place, it is also necessary to clean the bustal surface of the brake disc and the inner surface of the wheel opening. Finally, check the angles of the wheel installation and adjust them if necessary.
In general, it can be noted that this item is one of the most important suspension system of any car. The swivel fist is attached to the suspension using the "ball", so that the wheels appear to rotate. Do not think that this is a separate item, no, the brake system is also attached to it, and in the end, the stand ().
One of the main destinations of this part is the ability to withstand loads and create conditions for rotation of the wheel. All shocks that come on the wheels should be withstanding.
Swivel fists blue and right.
They are often produced from durable alloyed steel or cast iron, depending on models and manufacturers. Metal brand, as a rule, is chosen by 30-40x. Remember that in production it is important to withstand accurate geometric indicators, otherwise, the part will be simply unsuitable for operation. Also at the time of production, special grooves are made in the "fist" (drank), under the hubs.
Do not forget that in the course of operation, not only the mechanism itself is a negative impact due to the impact of the suspension in general, but also the pin. The pin, depending on where it is located, is called differently. In general, you should know that this some kind of shaft detail on which the hub bearing is located. So, when she wear out, an end to the bearing comes, and the swivel fist begins to test overload, there is excessive friction, cracks appear and the like. Pay close attention to it, because control can seriously complicate.
How the swivel fist is attached clearly, use the upper and lower lever for this, through.
Device and varieties
It should be remembered that, despite the swivel fist adopted for the standard, the so-called "straight cross", the dimensions of all are different. Therefore, choosing the item, the special attention of the sellers focus precisely the models of your car. In some cases, it will be important even the year of production. After all, the deviation of several centimeters will not allow the suspension to cope with the task. For example, "will not become" ball, there is not enough "angle" for traction and the like.
In addition, the different modification of "fists" may not come up even on the same machine. For an example, before restyling, the wheel rotation sensor was not put on the car, and after restyling, such an element appeared, and for it a separate "ear" was made. As a result, the former "fists" are not suitable for modern modifications, despite the general size and format of the part.
Resource
It is difficult to reliably say how much "runs", even in conditions of bad roads, everything is quite individual. Depends on the driving manner, the quality of the initial alloy and the like. In principle, manufacturers of cars, consider this node "long-term", that is, such that can serve more time than the other components of the suspension.
Often, the service life is measured with tens of thousands of kilometers, someone manages to save the node and up to 200,000 km.
Malfunctions and Possible Symptoms
Please note if the following symptoms and malfunctions began to appear:
The car began to "pull" on different directions, the problem is not solved even after checking the collapse.
It was noticed that the wheels began to turn to a smaller corner, most likely it was the "fist", or a ball support.
Frequent faults can be attributed to the "separation" of the wheel. It happens because of the broken thread on the axis of the node or the broom of the "finger" ball, which is also not uncommon.
It does not rarely, wear the surfaces of the axes, in those places where the bearings are "laid". The reason lies in the improper bearing or not taking the wheels of the wheels. If the wheel is not tightened, an uneven effect will be transmitted to the axis that after some time, it will lead to the bearing distortion and, accordingly, it will begin to get stuck, the backlash will appear.
There are such situations when the node in principle is whole, the surface of the axis without disorders, but revealed a small crack. Someone will advise her to brew, but according to the rules of security, such methods are prohibited. Do not forget that in most cases, the details are made of cast iron, and it has a density when exposed to welding. As a result, she can simply burst when driving.
How to remove a swivel fist?
Initially, it might seem that the design is quite complicated, but actually dismantling of such an element is nothing complicated. What is required of you:
1. First remove the wheel.
2. Unscrew the calipers of the brakes.
3. Remove the shock absorber rack.
4. Remove the steering tip (it is better to do a special puller).
5. Remove the semi-axes from sappets slots.
It is unforgettable to free up the wheel rotation sensor, naturally, if there is such a car, it is attached directly to the "fist".
7. In the end, the hub remained, the brake disc and the fist. Now unscrew the hub lock nut, pre-breaking the slot. Take out the bearing, screw the wheels fastening bolts into special holes and tighten them until you stop. After that, in small blows, knock the hub and release the "fist".
To install the details back, we are retailing.
This is the machine node
A knot that enters the turning fist of the OAZ of the front bridge is a ball kin. He assumes all the load, which falls on the front axle during the movement. These loads are especially great when driving off road and rough terrain.
During the operation of the car, this squava node is quickly flashes, which leads to the appearance of gaps and backlash in the front suspension.
Repair of the swivel fist is necessary in the following cases.
- Replacing the liner or seal node.
- Wear a ball pivot.
- The swivel fist was deformed and requires replacing the ball support.
Often, the breakdown of the swivel fist is caused by the poor-quality selection of components installed during its assembly, namely inconsistency:
- diameter of support and inserted hemisphere;
- the thickness and planting place of the gland;
- thickness of liners.
Features of prevention and repair
Repair of the UAZ swivel fist can be carried out both independently and contacting the car repair shop. The cost of repair work will depend primarily on the price of details to be replaced.
Fist dries
If there is some experience and the necessary toolkit, having studied the instructions, how to disassemble and repair the swivel fist, it is enough to buy the required snacks and independently carry out all the repair activities. This will allow not only to save money, but also to get new knowledge about the design of the car.
We must not forget about regular preventive measures consisting in inspection and assessing the state of the clamping sleeves of the swivel fist, as well as identifying the presence of a backlash in the front suspension.
Before starting the repair of the swivel fist, you need to familiarize yourself with the features of it.
- If nyloc nuts are installed, they will definitely be replaced, as they have a special coating that prevents them from unscrewing and loosening the clamp. After screwing nuts, this coating is destroyed.
- You can not put a car on the wheels, if at least one drive shaft is disconnected from the hub, as this can lead to deformation or damage to the hub bearing. If you need to move the machine to a slight distance, the shaft must be returned to the hub and fixed with a nut.
- Depending on the car model and the year of its release, the OAZ fist has two modifications, in one of which the hubs are solid, and in the other - hollow, which is determined by the presence of the opening.
Before starting repair, the following manipulations are carried out.
- The car is put on the hand-made brake.
- Under the rear wheels are put up, which will prevent the movement of the machine.
- The front of the car rises by a jack or winch and fixed on the stops.
Only convincing the reliability of fastening the front of the machine and the impossibility of moving it or disrupting the stops, you can start removing the wheel.
The process of dismantling the wheels and brakes
To remove the wheel, you need to perform operations in such a sequence.
- The wheel hubs remove the cap, remove the R-shaped bracket, dismantle the lock head. On the drive shaft weakened the nut, which connects it with the hub. After that, I remove the front wheel.
- If the car model is equipped with the ABS system, the sensor is on the wheel, which must be dismantled.
- The screw fastening of the drive shaft to the front suspension hub is twisted.
- The brake caliper is attached to the twist fist with two bolts that need to unscrew and disconnect the caliper from the brake disc, after which it is tied up to the spring on the front suspension.
- Before proceeding with the removal of the brake disc, it is necessary to mark its location relative to the hub of the suspension. The trait can be applied with chalk, but it is better to use white paint, so that during the fulfillment of repair work it was not lost. Only after that turn the fastening screw and remove the brake disc.
Lubricate fist.
To facilitate the dismantling process from the rack of the swivel fist, it is necessary to use a special device, with which the pendant springs are compressed and fixed. For this, cables are used, for example, as on the device 0903 AF. The compression and fixation procedure springs in the following way:
- at the top of the rack there are two holes, in one of which the cable is inserted;
- the steering column is then rotated and the second cable is inserted into the second hole;
- the free ends of the cables cling to the bottom edge of the cup;
- the upper ends inserted into the rack are fixed by screwing into the bolts in the bolt hole with a diameter of 6 mm.
