Maintenance of the front bridge UAZ Patriot. Front Axle: Install on UAZ Patriot

As many people are known, Russian roads are not distinguished by their quality, not to mention off-road. To move in such conditions. Need a car with excellent running properties. They possesses "UAZ Patriot".

A little about car UAZ

"UAZ-Patriot" has proven itself well on Russian off-road. Moreover, the scope of use is very wide, ranging from a car of agricultural purposes and ending with military-purpose machines capable of performing tasks in extreme conditions. The design of the "Patriot" is great for everyday use, and for having to unbeat the tracks. Especially since the driving quality allows you to get it there, where the cars did not even dream. At this car, you can easily go fishing or hunting, and if the bad weather falls during the event, you can easily get out of any grill, turning on the front-wheel drive. The quality of spare parts depends on the performance of the UAZ car. Front bridge is no exception. If under repair it is used low-quality parts, a complete failure is possible.

UAZ Bridge: Purpose and Characteristics

The bridge is a beam between the wheels and ensures their reliable bonding. It is equipped with elastic details, with which loads are quenched when driving. Since the "UAZ Patriot" is intended for operation in difficult conditions, the bridge must be increased strength. In addition, almost all the performance of the car depends on the leading bridge, since due to the failure of one level, the further operation of the car is impossible.

The bridge consists of:

Differential.
The main pair.
Half
Spring.

There is a large load on SUVs, so the components are springs, and not springs. This is due to the excellent Penmost UAZ. Front Axle - The device is quite complicated, therefore needs timely maintenance.

Varieties of bridges

To date, there are several types of car bridges, some of which are installed on the UAZ car. Front Axle - a device that performs a huge number of functions. Pentium depends on it. For certain models, different types of bridges are used:

Managed. In turn, divided into split and continuous. In most cases, this is the front leading bridge of the car. The split bridge serves to transmit torque, resulting in maneuverability of the car increases. The continuous is equipped with swivel fists, which makes it possible to control the rotation of the wheels. For this type of bridge, a light and durable beam is needed for the manufacture of which forging technology is used and high quality steel is used.
Supporting. In the case of the car to be transported by the weight of the increased mass, this bridge is used. The design provides a supporting device, which takes part of the load on itself. In some sets, the front axle is equipped with a similar supporting element.
Intense leading. The most complex system, since, in addition to the beam, the device includes a system and semi-axis. With such a system, the front wheels have the ability to spin at different speeds. On the corners, the machine has greater stability and is able to withstand heavy loads, while in the cabin there will be a feeling of a smooth move when driving around an uneven road. To withstand the mechanical loads of the semi-axles are made of high quality steel, after which the order procedure is passing.

Common faults design

With the Russian off-road better than all the UAZ car cope. Front Axle - a complex system, any malfunction of which will derive a car from further operation. The repair of the front bridge will cost the owner in a significant amount of money, so it is necessary to diagnose and lubricate the details of the device.

Basic faults Bridge:

Butter and lubrication.
Wear fixing devices.
Defects of bearings, teeth, semi-axes.
Mechanical damage to the beam.
Wear component parts.

All faults may occur for various reasons. If the front-wheel drive is turned on the front, then riding uneven roads Hello to damage to the transmission. Also, the use of winter oil for transmission in the summer or vice versa will affect the operation of the car not for the better. In tires, it is necessary to maintain a constant pressure to prevent bearing defects and shaft. Russian off-road does not frighten the UAZ car. The front axle needs to properly adjust the bearings.

Timely detection of malfunction will allow you to quickly eliminate breakdown, not allowing more serious consequences. Among the SUVs in the markets, the leading place occupies "UAZ-Patriot", the front axle of which needs periodic service.

Main chalflight damage:

Outsuncture.
Gradual loss of car manageability.
Increase fuel consumption.
Uneximated wear of engine parts and transmission.
The most dangerous symptom is a wedge when driving. This event requires immediate repair and adjustment of the bridge.

Timely adjustment of the "UAZ-Patriot" bridge will avoid a large number of faults and contain a car in good condition.

How to disassemble and repair the bridge

To date, it is often buying "UAZ-Patriot". The front axle requires constant monitoring and periodic maintenance. It is necessary to regulate the swivel fists and bearings in a timely manner. Replacing the lubricant is also a necessary requirement for the proper operation of the entire system. The main device on which the problems depend on the qualities is the front (UAZ) Bridge. The price will depend on the completeness of the device. It varies from 75,000 rubles to 200,000 rubles.

In order to remove the front axle, it is necessary to secure the car in a stationary state, for example, with a plating for rear wheels of blocks or bricks. Next, all the brake hoses should be disconnected, after which we unscrew all nuts and bolts that are fixing shock absorbers, gears, lining and stepladers. To the next stage it is necessary to approach with full responsibility, since it is the most difficult.

Stages of disassembly of the "UAZ-Patriot" bridge:

It is necessary to remove the wheels.
Disconnect the tower cravings.
Remove wheel clutches and brake drums.
Straighten the edge of the lock washer.
Disconnect the inner washer and stop ring.
Next, you need to proceed to disassembling fists, brake shields and
We unscrew the ball and craving steering trapez.
We dismantle the gaskets, remove the housing of the swivel fists.

After the front axle is completely disassembled, it is necessary to wipe all components and find a malfunction. Next, it is required to eliminate. Calculate on off-road fall only on UAZ. The front axle must be kept in health, to eliminate expensive repairs. It should be borne in mind that the smallest crack can cause damage, so it is better to immediately replace such a detail, without waiting for it out of order. Since the next time you have to disassemble all the device. In the same way, the front will now be disassembled now it will not be difficult for you.

Inclusion of the front bridge "UAZ-Patriot"

UAZ is a powerful Russian SUV. On the normal surface of the car and will be done so perfectly, but for riding on uhabam, impassive dirt and cords, it is necessary to turn on the front axle UAZ. How to do it? To do this, it is necessary to check how the front axle UAZ clutch is installed. To enable, you need to turn the hubs clockwise and move forward. After all the manipulations made, the cargo of the car will increase significantly, due to the fact that the front wheels will rotate synchronously with the rear. It is worth considering that the inclusion of the front axle UAZ will significantly increase the fuel consumption. But the car will become more maneuverable, stable and more manageable. In the case when the inclusion of the front axle of UAZ is performed for driving on a flat asphalt, rubber and transmission wear out several times faster, and the manageability is noticeably deteriorated.

In general, there are 2 ways to turn on the hub: manual and automatic. The first method is discussed in detail above, and the second is most convenient.

It is worth remembering that turning on and off should be done after a complete car stop. After the operations proceeded, you must make sure that the device is actually turned on, as well as its disconnection.

Methods for determining the shutdown of the front axle:

When driving, pay attention to the behavior of the rear wheels, they must work independently of the front.
Pay attention to how the car behaves on turns - the car will be a bit of lead when the front drive is turned on.
Well, the most popular and common way. It is necessary to ask for an extraneous person to see, drives rotate or not. If spinning, then the clutches are turned on, and they must be turned off.

Preventive maintenance and timely detection of defects

From time to time, it is necessary to pay attention to the chassis parts of the car. It will have a positive effect on operation and reduce the likelihood of vehicle breakdowns.

When conducting prevention, it is necessary:

Check the oil level in the crankcase, add or change if necessary. The oil drains is performed through a special opening of the crankcase. But in order to merge the oil completely, it is necessary to open the dump hole, unscrew the upper tube. If necessary, the container needs to be rinsed.
Regulate axial gaps. The presence of a gap between the transmission of the gearbox and the bearing of the drive gear will result in the rapid wear of the teeth. It is possible to determine by step by step by the attachment of the cardan shaft. To eliminate, tighten the nut, applying a certain force.
Clean all visible parts of the bridge, including the safety valve. All mud deposits are cleaned with a rough brush.
Check the swivel fists. You should pay attention to the fist levers, more precisely, on its fastening. Wheel rotation limiters should always be safe.
Check all fasteners. If necessary, tighten the bolts and nuts using the keys of the desired diameter.

A similar device has the front axle UAZ "Buanka". It also needs similar preventive activities.

Tuning suspension

Each owner of the car is sooner or later asking for the improvement of the indicators and technical characteristics of its car. For some, external changes and refinement are important, but for the owners of SUVs, the main task is to improve the suspension.

Events with tuning "UAZ-Patriot":

Strengthening bridges and reduce the gear ratio.
To increase the stroke of the suspension, replacing the rear suspension on the spring. But it is worth considering that the car will lose a little in maneuverability.
The increase in the road lumen will significantly increase the car's permeability. The elevator will help to overcome even the deeper ferrod.
Replacing tires on tires with a wider profile will have a positive effect on the car's passability in difficult terrain.

Consider several options for tuning the suspension in more detail.

The easiest and inexpensive is an increase in the pendant pendants for 2 cm. It is necessary to put the rubber inserts for the front springs and replace the earring on the springs. In this case, the Panar traction is not required. Since the ground clearance is enlarged, it is possible to put more serious rubber.

The following option is to raise the body itself above the frame. Road clearance will increase by 5 cm. The method is to install the spacer in the frame and body mounting places. It is advisable to use aluminum inserts. In parallel, it is necessary to transfer all brackets for fastening the frame and body, as well as lengthen the stops so that the body does not go. The bumper should also be finalized: there are still aluminum spacers for the front, and in the rear shift brackets. As a result, the ground clearance is enlarged, and you can put the rubber 275/75 R16. Tuning suspension "UAZ-Patriot" must be made in the presence of all necessary tools.

Another option will significantly increase the clearance, which will have a positive effect on the car's passability. But the method is quite problematic and complex. In this case, you will need to install Panar traction and replacing the shock absorber. On the front axle, we put the spacer to 10 cm on the bunch of a bump. On the machine drill holes in order to change the angle of tilt the pivot. Standard tilt of 3 degrees change nine. This will allow not to lose the resistance of the car on the road. In addition, you can put the dampers on the tower craving, are perfectly suitable from the "Mercedes Gelevagna". You also need to install a longer rack on the bridge stabilizer. This method will cost quite expensive, but the characteristics and passage of the machine will increase significantly.

Bridge adjustment

Usually all adjustment activities are carried out at the factory, and when using a vehicle, these actions are not required. When the bridge is loaning or the bearing malfunction is sometimes adjustable.

Adjusting without replacing bearings:

Unscrew the semi-axes, remove the crankcase cover or gearbox (depending on the type of bridge).
In the differential, namely in the bearings, set the gap 0.15 mm with the help of adjusting nuts.
Install the side gap 0.20 mm. Wrapping the gear, make measurements at least at 6 points.
If the side gap need to be increased, we turn the adjusting nut and the opposite nut on the same revolutions. To reduce the gap, we produce all the same operations up to the opposite.
Squeeze the bearing in the axis direction to adjust the preload. The level of compression depends on the car's mileage.
We produce an assembly of the bridge. The front axle UAZ 469 is regulated in the same way.

Adjustment with replacement bearings

Unscrew the semi-axes, remove the crankcase cover or gearbox (depending on the type of bridge)
With bearings remove the lid.
With a dynamometer to measure the torque of the gear.
Remove rings from the differential box and put on new ones.
Install new bearings.
Wear and fix all previously removed covers. It is desirable for more reliable fixation to make an effort. Bolts need to be lubricated with a special sealant.
In order to increase the moment of resistance to rotation, it is necessary to alternately pull up the adjusting nuts until the optimal value of the resistance of the rotation is 200-250 N.
Install all previously taken parts, including semi-axes.
Reliably tighten all fasteners.

RESULTS

As can be seen from the article, the most Russian SUV is, of course, UAZ. The front axle is one of the most basic parts. The car will not be able to function normally if there is a malfunction of the running parts. "UAZ-Patriot" - a car for roads with bad conditions of patency. If it does not cope with the tasks as an SUV, it makes no sense to spend extra money. Since any passenger car through a flat asphalt will be perfect. In order for UAZ to meet all the requirements, it is necessary to keep the running parts in good condition. Timely perform prophylactic and maintenance. To engage in the modifications of bridges and an increase in the road lumen is also necessary without harming the car. If you have certain skills of the mechanic and the information provided in this article, there is an opportunity for all manipulations to produce yourself. The repair of the front axle UAZ will cost a considerable amount, so it is better to prevent faults.

The entire line of all-wheel drive UAZ has the same transmission design. On the Patriot and Hunter model, as well as all additional models created on their database are set by the spice nodes that are equipped with a continuous crankcase. They are named so in honor of the engineer K.Payser. He is the author of a large number of patents that are now owned by Dana Co.

The front axle of this type first appeared on the model 3160 and 3162, after which they have already begun to be used for the Patriot, Hanter and pickup models based on them.

Front Axle UAZ Patriot has combined functions. It can be simultaneously as a lead and managed. It is based on a hollow beam, inside which the main transmission and differential passes. Through the torque enters the front hubs.

The semi-axis is made in the form of a whole part, with set screws that allow you to enter a large angle of rotation, while keeping the torque.

At the moment, such hinges are also installed on other UAZ models on the nodes of the old type - thyme. This allows you to combine greater reliability required by cargo-passenger transport with good handling. Such models were called - hybrid bridges.

The rear axle UAZ patriot is also made in the form of a hollow beam, at the ends of which the hubs of the leading wheels are fixed using special bearings. They are driven by placed inside the differential. This design of the rear and front bridge is rather similar.

Design features.

To give the design of the greatest strength, the substrate thickness is increased by almost 10 millimeters. As a result, reliability increased significantly, but the noise level decreased. The first type was mainly used on a car with gasoline engine, the second only on diesel, manufactured since 2015.

When buying, it is also worth considering that the width of the bridges for some models is different. For example, the Hunters are installed front nodes with a catalog number 31605-2300011. They provide a rut size of 1445 millimeters, a gear ratio of 4.111. On patriots and pickups, model 3162-2400010-10

The rear node has a catalog number 3162-2400010-10 with a gear ratio of 4,111.

Status checking.

The service must be started from the external inspection of bridges and control the oil level in the crankcase. It must be in the level of hole for drain plug. In addition, periodically check the tightening of all bolts, the absence of gaps in gears.

When replacing the oil, you need to check the presence of metal chips on the magnet drain plug. Its presence will indicate the generation of gears.

Adjusting gaps.

Axial gap is the most common problem arising during the operation of the car. This is due to the strong wear of the gear teeth, which over time can lead to the bridge encoding.

You can check the state by shocked the lead gear for the flange.

To eliminate this problem, you need to pull the flange nut. It may require a little effort because there is a small breadnote. Tightening follows until the gap leaves.

Useful video

Adjusting the UAZ Patriot bridge is pretty much debts and a labor-intensive process into which contains many nuances that need to consistently perform in order to avoid problems during repair.

The adjustment of the bridge is needed if problems appear in the form of a breakdown of teeth, leak oil, bearing wear, etc. This may not be due to the fact that the quality of the details leaves much to be better and due to the wrong operation of the car, as well as if the gap is incorrectly exposed to the gap in bearings Leading gears of the main transfer, lack of oil or its poor quality. The consequences of this can be like extraneous noise in the bridge, fuel consumption, deterioration of manageability, elevated wear of parts and you can even catch a bridge wedge.

Whatever this happens to happen in a timely manner to carry out special repair work, such as replacing the seals, replacing the adjustment of bearings. At the end of such work, you should check the correctness of the bridge adjustment, it is possible to determine the temperature of the bridge after a quick ride.

Remember that the timely replacement of oil contributes to the extension of the life of your details!
If you have a problem with fuel consumption, then you will help you

- breakdown of the teeth of the main pair.
- breakdown of the teeth of the semi-axle.
- leak oil through the glands.
- wear or destruction of differential bearings.
- wear or destruction of the main pair of teeth.
- wear and destruction of the bearings of the hubs.
- Destruction of adjusting washers.

Causes of faults

- incorrect operation. UAZ Patriot is rear-wheel drive Car with plug-in
front bridge. If you drive with a connected front bridge on solid roads, and even turns (!), Then the transmission will not live for a long time.
- the presence of axial clearance in the bearings of the main gear gear.
- the presence of axial gap in the briefs of the differential of the main transmission.
- wear of parts, usually due to the lack of necessary quantity and quality of transmission oil.
- wear details due to low quality. Quality bearings, adjusting rings need to search.
- overload during operation due to the need (for example, competitions) or led away.
- Incorrect adjustment of the main pair.
- not timely replacement of transmission oil.
- Operation with the brand of transmission oil is not seasonal.
- Overload from locks.
- Long-term operation with different tire pressure.
- The beating of the cardan shaft (low quality of the shaft, the destruction of the cross, the destruction of the suspension bearing).
- No lubrication in the slotted connection of the cardan shaft.
- Not the right tuning - the length and course of the cardan shaft does not correspond to the changes made.
- Not the right tuning - incorrect transmission ratios.
- Lack of high-quality lubrication in the hub bearings.
- Long-term bushing with one wheel when fixing another wheel.
- Incorrect and untimely adjustment of hub bearings.

Consequences of faults - rear and front axle UAZ Patriot

- Noise in the bridge.
- increased fuel consumption.
- worsening manageability.
- increased wear of the elements of the transmission and the engine due to an increase in the load.
- Swimming during the movement is the worst. The main cause of the bridge is the presence of an axial gap in the bearings of the main gear gear or the presence of axial gap in the main transmission differential bearings. The wiring of the rear axle of UAZ Patriot really happens if the owner completely launched his car or quite ugly handles with him, since before the bridges in the prison, the bridges lastive, noise and cod reported that they needed repair. The bridge can jarny if it heats up very much

Rear and front axle

Malfunction Cause and Remedy
Permanent increased noise when working front bridge
1.Instial or incorrect adjustment of differential bearings.
2. Egg adjustment. Damage or wear gear or gear bearings.
3. Double-sufficient amount of oil in the bridge crankcase.

1.1. Replace worn items, adjust the differential bearing.
2.2. Determine the gearbox malfunction, repaired or replace it
3.3. Low the oil level, check whether there are oil leaks through the front axle crankcase seals
Noise when overclocking the car and braking by the engine
1. Empirement adjustment of the gear gear gear.
2. The powerful side clearance in the engagement gear of the main transmission.
3. Enhanced gap in the bearing gears due to the weakening of the nut fastening nut or bearings. 1.1. Adjust the engagement.
2.2. Tool the gap.
3.3. Replace the gap, if necessary, replace bearings.

Knock at the beginning of the car
Wearing a hole under the Satellite axis in the Diffine Box Replace the Diffine Box and, if necessary, the satellite axis
Replacing the head of the lead gear gear of the front bridge

Replace the gland when the oil leak is detected from under the gear flange.

Adjusting the bearings of the main transfer of the front bridge
Main transfer bearings Adjust the following order.

1. Submire the adjusting ring 5 (see Fig. 6.4). Its thickness D1 (Fig. 6.5) is determined (with an accuracy of + -0.025 mm) based on the actual sizes in and g (see Fig. 6.5 and 6.6) by formulad1 \u003d b - (111,960 + g) (mm).

Fig. 6.6. Adjustment parameters of differential bearings

Fig. 6.7. Measurement of the mounting height of the main gear bearings:

1 - mandrel; 2 - outdoor bearing clip; 3 - Bearing

Install the ring in Carter 16 (see Fig. 6.4) of the main transmission.
2. Install the leading gear shaft into the front axle crankcase.

Note
Check the moment of turning the shaft of the drive gear. It should be 1.0-2.0 N / cm (0.1-0.2 kgf / cm).
3. When installing the differential assembly with the slave gear, measure the size E (Fig. 6.7), applying an axial force p equal to 4000-5000 N (400-500 kgf), and tugging the gear several times so that the bearing rollers take the right position. Measure in the Carter distance B (see Fig. 6.5) from the axis of the drive gear to the stubborn end of the differential bearing. According to the actual dimensions of B, E and the installation size of the slave gear, equal to 50 mm, select (with accuracy +0.025 mm) Adjusting ring according to the formula
d2 \u003d b - (e + 50 + x) (mm), where D2 is the thickness of the adjusting ring;
X is a limit deviation from a mounting size, equal to 50 mm, with a corresponding sign (plus or minus), this size is applied by an electron to the end of the slave gear.
4. Install the differential assembly with the outer rings of its bearings and the adjusting ring into the front axle crankcase and secure it.
5. Adjust the bearings 6 and 22 (see Fig. 6.4) The differential of the front bridge of the tightening nut 23, periodically rotating the differential so that the bearing rollers take the right position. After tightening the nut, the total moment of turning the leading of the differential gear (MV. Sh.) Should be within the mV. sh. + (0.21-0.42) (nm). Check by turning for the lead gear.

Fig. (6.8.) Measurement of the installation size of the differential with the bearing:

1, 5 - mandrel; 2 - differential assembly with the driven gear; 3 - Bearing; 4 - Outdoor bearing clip

Note
The side clearance in the engagement gears of the installed new set of main transmission check and adjust after adjusting the position of the gears.
The side gap is tested by the indicator, the rack of which is attached to the carder of the bridge in the direction perpendicular to the surface of the tooth of the driven gear when the indicator rack is fixed. Check the gap on three to four teeth, evenly arranged around the circumference. The scatter of the gap values \u200b\u200bshould not exceed 0.05 mm. Normal side gap should be within 0.15-0.25 mm. If the side gap is less than the specified value, then the selected adjusting ring should be replaced with a smaller thickness ring. When checking and adjusting the side clearance, the preliminary tension in differential bearings is optional.
6. Tighten the adjusting nut 23 to contact with bearings and the disappearance of the gap.
7. Check the gear gear of the main transmission on the spot of the contact, for which it is painted with a led gear tooth (2 tooth in three to four places evenly around the circle). 8. Drinking for the flange shaft of the lead gear, rotate the driven gear in both directions until the gear keys are indicated by the contact stains, as shown in Fig. 6.8.

Note
With proper adjustment of the gear gear, the contact stain must be located in the places of teeth shown in Fig. 6.8 (pos. 1).

When contacting the top of the tooth (pos. 2), move the drive gear to the slave, increasing the thickness of the adjusting ring, and to maintain the side of the side gap, move the driven gear from the lead.
When contacting the bottom of the tooth (pos. 3), move the lead gear from the slave, having reduced the thickness of the adjusting ring, and to maintain the lateral gap value, move the driven gear to the lead.

Fig. (6.9.) Location of contact spots on the teeth gears of the main gear:
A - side of the front turn; B - side of the rear; 1 - the right location; 2 - the contact spot is located on the top of the tooth; 3 - the contact spot is located at the base of the tooth; 4 - the contact stain is located on the narrow end of the tooth; 5 - Spot contact is located on a wide end of the tooth
When contacting the narrow end of the tooth (pos. 4), move the driven gear from the lead by reducing the thickness of the adjusting ring, while to maintain the lateral gap value, move the drive gear to the slave.
When contacting a wide end of the tooth (pos. 5), move the driven gear to the lead, increasing the thickness of the adjusting ring, and to maintain the lateral gap value, move the drive gear from the slave.
9. Place the lock plate on the differential bearing cover.
10. Collecting the main transfer, check its heating after making a test drive by car. If the front axle crankter in the zone of the bearing gears and the differential bearings is heated over 90 ° C, then adjust the preliminary tension again.

Elimination of leaks through the hubs of bridges

Need: New cover bolts (optional), lubrication for fixing threaded compounds, sealant, means for degreasing (White spirit or kerosene).
- Subdominating the wheel or raise the car on the lift.
- Remove the hub cover.
- Bolts be sure to clean well in the solvent and dry.
- Clean the lid and the hub in the solvent and dry.
- Clean the thread in the hub with a solvent and dry.
- Take the cover to the hub and check the density of the fitness and the absence of distortion.
- Apply (smeared) a thin uniform layer of sealant on the lid and the hub.
- combine bolt holes in the lid and on the hub.
- Applying the bolts to the bolts for fixing the threaded connections to push the bolts (without rotten washers).
- Tighten the bolts evenly and finally tighten.
- the sealant should even get out of the edges. After it is frozen, cut off too much.
- Do not lower the car on the wheels at least one hour before the sealance is frozen.

Tube of the filling neck and plug hole

The shuttle tube of the gearbox has a property with time to scream tightly. This is due to the fact that the thread in it is a cone-shaped form.
Without waiting for this moment, you should unscrew it, clean (wipe) the cork and thread on the gearbox to the degreasing means (White spirit or kerosene).
Lubricate the plug thread with high-quality lubrication for fixing threaded connections I have not prags the amount of lubrication.
Tighten the plug to such an extent so that there are no flows of oil without dragging.

Replacing the glands of the UAZ Patriot bridge

How to replace the rear axle.
Replacing the groovers of the gearbox on UAZ Patriot:
Properly installed high-quality glands serve for a very long time.
Never install re-ex-seen in the work.
Purchase high-quality seals.
If high-quality glands quickly begin to flow, then the reason should not be sought in the glands, but in the adjustment of the bridge, fastening and quality of the cardan shaft, crosses, suspended bearing.
- unscrew the cardan shaft.
- Unscrew the fastening nut (nut shaft leading gear rear axle gear).
- Remove the flange.
- remove the seal from the neck of the gearbox with a flat screwdriver.
- Clean the installation site of the gland to the degreasing means (White spirit or kerosene).
- Before installing the inside of the gland, the one that should be in contact with the shaft and oil, lubricate with transmission oil.
- When installing, an old gland is sometimes used as crimping. Such a seal is preferably rinsed to "not be infected."
- The installation process of the gland to the place must be neat, without skewing both as a result of the installation and in the process of pressing.
- After installing the inner (working) part of the seal, i.e. friction places, once again lubricate the liquid in which it will work - with transmission oil.
- Install the details in the reverse order. When installing the flange when tightening the nut, turn it out for the flange so that the bearings rollers stood in place.

1 - bolt; 2, 33 - Spring washers; 3 - driven gear; 4, 24 - semi-axes; 5 - adjusting ring; 6, 22 - bearings; 7 - spacer sleeve; 8 - the outer clip of the outer roller bearing; 9 - roller bearing; 10 - stubborn ring; 11 - seal; 12 - reflector; 13- flange; 14 - washer; 15 - Nut; 16 - Carter Bridge; 17 - adjusting ring of the drive gear; 18 - the outer clip of the inner roller bearing; 19 - internal roller bearing; 20 - oil reflective ring; 21 - shaft with a leading gear; 23 - adjusting nut of the bearing of differential; 25, 39 is the right and left part of the differential hull; 26 - bolt; 27, 40- Supported washers of gear gears; 28, 43 - gears of semi-axes; 29, 45 - Differential satellite axes; 30, 41, 44, 46 - satellites of differential; 31, 38 - Differential Bearing Covers; 32 - Clamp of adjusting nut of differential bearings; 34, 36, 37 - bolts; 35 - Cover Carter of the Main Transmission; 42 - Gasket Cover Case Main Transmission

UAZ Patriot bridge is regulated selection of adjusting rings and tightening the bearing of differential and main transmission.
Selection of adjusting rings ensures the correct gear of the gear of the main transmission. The correct adhesion of the gear of the main transmission is checked on the contact spot.
The correctness of the bearing tightening is determined by the total moment, the value of which is measured in N · m. Naturally, in practice, no one is interested in these units of measurement. The process of tightening bearings is determined exclusively with the ability and experience of the wizard. To verify the correctness of the bridge setting, special measuring instruments are used.

After repair and adjustment of the UAZ Patriot bridge, it should not "buzz" from the very beginning of operation. If the bridge is buzzing in the first days of operation, then after running, the hum does not disappear. During running, a good and properly adjusted bridge is not buzzing. Without proper repair, "buzzing" bridges will not be able to buzz.

To check the correct adjustment of the UAZ Patriot bridge at all, it is not necessary to be able to regulate it. Before doing something to check the temperature of the bridge after a quick ride. If the bridge is very hot, then it is precisely necessary to argue that it is at least necessary to regulate. If such a bridge does not repair, then sooner or later it swaps.
1. Unscrew the cardan from the bridge. On the raised car, rotating the bridge flange (Cardana mounting place) in both directions, you can feel the presence of broken teeth, assess the state of bearings and other problems.
2. After removing the bridge cover, check the condition of the teeth on the main gear and the differential, turning the bridge. There should be no cracks, production, roughness in places of contact spots, cuts and torn teeth. Evaluate the location of the contact spot. In the crankcase, you can sometimes find the remains of destroyed adjusting rings and broken items. The listed problems are real. If all the whole, then the bridge can be adjusted. If there are problems, then ...
3. Check the transverse gaps in bearings. If there are gaps, the bridge must be adjusted until it swap.
4. Check the gearing the main transfer. To do this, color the teeth of the main transfer of paint from the aerosol cylinder and turning the bridge in both directions to determine the drawing of the tracks of the engagement. The following figure shows the correct location of the contact spots on the teeth gears of the main transfer of the UAZ Patriot bridge.

In the following photo, an example of not proper adjustment of the main pair and the presence of roughness in contact places:

After adjusting the rear axle, there should be no axial gap in the bearings of the main gear gear and in the bearings of the principal transmission differential. The axial clearance in the bridge bearings is the main cause of its noise and jamming due to the destruction of teeth in the main pair. There are very few masters who can correctly make adjustment to the main pair of the bridge. Instructions on the Internet are not very helpful, as the process is an iterative, requiring not only the ability, but also experience. We specialize in adjusting the leading bridges. We are coming from other cities on the recommendations of our customers for the bulkhead of the leading bridges and the checkpoint, including foreign cars. Leading bridges, aluminum and tuning UAZ are our competitive advantage.

Change of oil

In Transmissia UAZ Patriot should pour the highest quality oil that you can afford. Too high quality can flow through poor-quality seals.

Very often in the back bridge over time, due to the moisture from entering it, the oil turns into a thick not flowing alive. Simple oil replacement in such a bridge does not have a proper effect. If you are not sure, remove the bridge cover and the semi-axis and clean the bridge. Do not feed illusions - if the breaths are not withdrawn, if we went through water, if a lot of time has passed, etc., then the bridge is no longer oil. Moreover, the alien is not in the gearbox, and closer to the hubs. Those. The hub bearings of the rear axle are practically not lubricated.

Sapins. Sapunov's withdrawal

Sapunas at bridges need to be launched into the open space, so that water does not get into the bridge under any circumstances. For this, brake hoses and brake tubes are usually used. It is easier to use oil resistant hoses.

At the end of the tubes under the hood, a plastic filter of fine fuel purification from the classics is installed so that the dust does not get into the bridge. At the same time, the end of the tube is flexing down so that the water does not get into the bridge even if the car leaves more than the location of the end of the tubes.

On cars with a compressor with extreme exploitation, it sometimes create an overpressure of air in the transmission - as it would bloom the bridges, a box and distribution from the inside. This completely eliminates the falling water and dirt inside and lubricates the glands in the friction places.

Sometimes at the end of the tube install expansion tank with a balloon to create volume. In this case, the connection of the internal space of the bridge with the atmosphere is completely closed. When the air change in the bridge when heating and cooling the air balloon is inflated or compressed.

If you drove through a brother depth of more than 30 cm, then you should immediately (on the same day) replace the oil in the transmission - such is the instruction manual of the manufacturer. Make conclusions.

Adjusting the bearings of Stupits

Spice Bridge Wheel Bearings Adjustment In the following sequence:

- Raise the jack of the car from the wheel side, the bearings of which must be adjusted.

- Because of the lock washer 6, unscrew the lock nut 7 and remove the lock washer.

- Loosen the bearing adjustment nut 4 for 1 / 6-1 / 3 turns (1-2 faces).

- turning the wheel with your hand, check the ease of its rotation (the wheel should rotate freely without hiding the brake pads for the disk or drum).

- Tighten the nave bearings nut. Tightening torque 30 - 40 nm (3.0 - 4.0 kg / cm). When tightening the nut, turn the wheel for the correct placement of the rollers on the treads of the bearing rings and press the key of the key smoothly, without jerks.

- Install the lock washer, screw and tighten the lock nut. Tightening torque 30 - 40 nm (3.0 - 4.0 kg / cm). Locking washer Install the inner mustache in the pads of the trough. If there are at least minor cracks on the dads of a lock washer, replace the washer.

- Check the bearing adjustment after tightening the lock nut. With proper adjustment, the wheel must be freely rotated without jamming, noticeable axial clearance and pitching.

- Generate one mustache washer on the line of nuts, and the second is on the edge of the lock nut.

- Insert the rear axle semi-axle or put the front axle wheel off the clutch, clean the threaded part of the bolts from the remnants of the sealant, degrease and apply a new sealant layer, tighten the bolts.

Finally, the correctness of the adjustment of bearings check the observation of the heating of the wheel hub after the movement of the car.

If the hub is heated strongly (the hand heating does not tolerate), release the nut on 1/6 turns (1 line), observing the sequence and rules set out above.

Checking the adjustment of bearings for heating, do not use work brakes, as in this case the hubs can be heated from disks and brake drums.

A source
UAZ-TUNER.RU.
Kulibinsclub.ru.
Avtosteh.ru.

The front axle UAZ patriot mounted on a spring suspension with additional shock absorbers is designed to install swivel fists. In the design of the beam, there is a gearbox with a differential, allowing you to transmit and distribute the torque between the front wheels.

The front axle is equipped with a monolithic molded cutter of the gearbox (the spice scheme), in which stockings of the semi-axle are installed. Due to the absence of the lines of the connector, the stiffness of the structure is increased and the conditions for the operation of the gearbox are improved. For access to the gearbox and differential, the cover fixed by bolts is used. The internal volume of the crankcase is used to store the lubricant stock, the drain and test holes with plugs are provided. Stockings mounted with tension are designed to install beams on the frame and for mounting the front wheels drive.

For rotation of the front tires with simultaneous torque feeding, ball hinges (Solus) of the ByrNfield scheme are used. In the hinge cavity there is a special lubricant, which is not required to be replenished during the operation of the car. The front wheels have a fixed installation angle in the vertical plane, in the horizontal direction angle of the convergence is adjustable on the stand. Swivel fists of a pivot diagram, the axis of the kingnery located in obliquely, providing automatic return of the front tires to the neutral position.

Advantages of the front beam Spyser:

an increase in the rut to 1600 mm, which allowed to increase the resistance of the car;
the angle of rotation of the controlled wheels reaches 32 °, which positively affects the maneuverability of the car;
the use of the spice beam made it possible to abandon leaf springs in favor of spring dependent suspension;
the design of swivel fists does not require regulatory work and replacing lubrication;
access to mechanisms for repair is carried out through a removable cover;
the increase in the stiffness of the structure and the placement of the gearbox and the differential in a single crankcase allowed to increase the resource of the node;
reducing noise due to the installation of the upgraded driven gear (item can be installed in the bridges of the old design with a detachable crankcase).

Enable and disable bridge

The torque is transmitted to the front axle reducer using a drive shaft with a slotted clutch, connected to a 2-step dispenser reducer. Patriot's cars are found 2 types of dispensing boxes: with mechanical control (Russian construction) and electric drive (DYMOS gearbox, used from mid-2013).

To control gearboxes, a lever or a swivel washer is used on the central body tunnel.

Press the clutch pedal until it stops.
Transfer the gear control lever to the desired position, the control algorithm is indicated on the plastic knob. The manufacturer allows switching to a torque transmission mode to 2 bridges using direct transmission in a transfer box at a speed of up to 60 km / h.
Let the clutch pedal and continue moving with an active drive to all the wheels. To turn off the front axle, it is necessary to press the clutch pedal again, and then install the dispensing gear lever to the neutral position.

To turn on the front bridge on the machines with the DYMOS box, you must rotate the puck to the desired position. The transmission design allows you to turn on the full drive while driving, but if you need to activate the reduced row, then the car should stop. Then it is necessary to translate the main box to the neutral position, which will allow you to turn on the reduced row in the dispensing gearbox.

Frequent malfunctions

The design of the front leading bridge is characterized by increased reliability, possible malfunctions arise due to the natural wear of rubber parts or disruption of operating conditions. The gearbox breaks are associated with loss of crankcase tightness or damage to the gear wheels. The owner of the car can independently find the cause of the breakdown and perform repairs in the garage conditions.

High level of noise

Increased noise level indicates a decrease in oil level and mechanical wear of rolling bearings or gears of the main pair and differential. If the lubricant does not allow to reduce the noise of work, then you need to disassemble the node and replace the worn items.

After reverse assembly and repairing the oil level, the performance of the front bridge of the patriot is checked.

Noise when working a bridge occurs due to incorrect adjustment of the gear of the main transmission. To restore normal working conditions, it is adjusted for the position of the part (using steel pads), but if the descent is damaged or wear, it is impossible to provide the desired point of contact. In this case, a complete replacement of gear wheels is performed, the gears from different sets are strictly prohibited.

The flow occurs through the gasket between the lid and the gearbox, as well as through the sealing gland. The cause of the defect is to wear out parts or damage to the items during the installation or maintenance of the car. To restore normal working conditions, it is necessary to replace damaged parts, allowed to be applied to the surface of the sealant laying. After repair, it is necessary to restore the level of transmission oil in the front axle gearbox crankcase.

Drying lubricant

During the operation of the machine, the lubricant is degradation located in the bridge crankcase. At high temperatures, the oil evaporates, and with overcoming water barriers to the cavity gets water. To check the lubrication level, the control opening is used, closed with a threaded plug. If the owner regularly overcomes water obstacles, it is recommended to establish extension hoses to ventilation channels. The highways are derived under the hood of cars, reducing the risk of entering the water and dirt.

Jumping node

The reduction of the gearboxes occurs in the case of an increased axial gap in the bearing supports, which rotates the main pair of the main pair. Because of the movement of the axis, the contact spot between the gears is disturbed, which leads to the wear and destruction of the teeth.

When operating, it is necessary to periodically check the state of bearings by sharing the leading axis for the flange designed to attach the cardan shaft.

The maintenance of the bridge is to periodically check the level and replacing the oil in the crankcase (every 45 thousand km of mileage). It is recommended to control the state of the sealing elements and parts that hold the beam by car. It is also necessary to promptly adjust the axial gaps that change due to the natural wear of gears and rolling bearings. Additionally, the clearance is eliminated in the pile of rotary fists and the angle of convergence is adjusted.

Drain of old oil is made after the warming up of the crankcase in motion. In the design of the case, a threaded plug is provided, the tank is substituted under the hole for collecting the exhaust liquid. It is necessary to wipe the surface of the tube from the particles formed during the wear of the gear (in the design of the part design). Oil pouring is performed through the control opening, closed with a threaded plug. Normal is considered the lubrication level located near the lower edge of the hole.

Repair with your own hands

The design of the front beam allows repair work on its own, but part of the work is performed under the terms of the service. For example, the car owner cannot correctly adjust the angle of deviation of the front wheels. In the beam scheme, a resistant bolt is provided that does not allow to deflect the fist to an angle greater than 31-32 °, but the definition of the parameter is possible only on the stand.

Algorithm for action when installing a new ledge of the leading shaft:

Install a car on a flat area, and then tighten the parking brake and put the stops under the wheels.
Unscrewed using a 3 bolt wrench holding a boltandal shaft flange on a response site located on the shank of the drive shaft. To facilitate the procedure, it is recommended to handle the WD40 fluid thread.
Remove the bolts and take the drive shaft to the side.
Unscrew the central nut holding the flange with the reflector on the leading axis of the front axle gearbox.
Pick up a screwdriver or seer Worn gland, and then remove the item from the planting hole.
Wipe the surface with the wind from the residues of oil and dust.
Set a new gland to the regular place, the worn item is used as a mandrel.
Mount the shaft and flange on the shaft, and then tighten the fastening nut.

In the process of self-maintenance, there is a need to adjust the convergence of the front discs with tires. To change the parameter, a transverse steering should be used, in which a clutch with locking nuts is provided. Before setting, steering hinges and hub bearings are checked, in which there should be no backlash. To determine the angle, it is necessary to measure the distances between the middle lines on the sidewalls of the tire. With correct adjustment, the gap in front of 0.5-1.5 mm exceeds the distance between the tires from the back.

SUVs UAZ Patriot, Hunter from the plant are equipped with two leading bridges: front and rear. Due to the presence of two bridges on the SUV UAZ patriot of his passability there are no equal. The front axle, in contrast to the rear, is manageable. This suggests that the front axle is included only if necessary. A bridge that is installed on the UAZ is called a spice. It was designed in the distant 90s, and every year it was improved and supplemented. Today there are such news that the spice will soon displace the old structures of the aggregates, which are installed on the "loaf" and "goats". Today we will pay attention to the front bridge Spyer SUVs UAZ Patriot. What is, features, pluses and method of adjusting the product.

Features of the front bridge

Carter Bridge Spider consists of cast material in which the semi-axis is pressed. The bridge crankcase is closed using a crankcase cover. The transverse plane of the device does not have the connector, which increases reliability and gives the stiffness of the structure. Also, the differential and the main transmission of the spice bridge is located in one crankcase, which causes the high accuracy of the engagement and operation of the device. All these features determine the increase in product performance. Now, to serve the device, it is enough to remove the crankcase lid and make the necessary repair or replacement of products. Periodic control of the oil level in the system, timely replacement of seals and bearings, as well as eliminating the backlash in gears and differentials - all this is the main criterion for servicing the aggregate. The Spice Bridge is equipped with new types of hinges (shruches), whose feature is durability. These hinges require periodic lubrication of the structure, for which the material is applied with SCR-4. Apply to Litol-24 hinges lubrication is invalid. An equally important point is the value of the gear ratio of the spice bridge. Devices with two values \u200b\u200bof the transmission numbers of the front axles on the UAZ Patriot are available: 4.11 and 4.62. Bridges with a value of 4,11 are installed on the UAZ Patriot SUV with a gasoline engine ZMZ 409, and 4.62 for Diesel units ZMZ 514.

Design and diagram of the front bridge Spider

The photo below shows the scheme of the front bridge of the spider with digital designations. Consider the main mechanisms from which the spice front bridge is.

Advantages of the bridge Spires

The UAZ SUV patriot is equipped with a widespread device. The advantage of such a design is the following points: an increase in the rut, which positively affects the stability of the vehicle both on the road and off-road. The river has been increased to 160 cm. It has positively reflected this and on the possibility of increasing the angle of rotation of the front wheels to 32 degrees. In this case, the SUV received the best maneuverability on the road and beyond her border. Increased the strength of the swivel fists, due to which the frequency of lubrication and repair work is reduced. Due to the presence of a new suspension, the UAZ Patriot car received better handling and stability.

Thus, these advantages suggest that the SUV is highly resistant to off-road, as well as permeability, which is important for such an aggregate.

Possible malfunctions

Permanent increased noise when the front axle is working. 1 . Worn or incorrect adjustment of differential bearings. 2 . Incorrect adjustment. Damage or wear gear or gear bearings. 3 . Insufficient amount of oil in the bridge crankcase. 1.1 . Replace worn items, adjust the differential bearing. 2.2 . Determine the gearbox malfunction, repair or replace it. 3.3 . Restore the oil level, check if there is oil leakage through the front axle crankcase seals. Noise when overclocking the car and braking by the engine 1 . Incorrect adjustment of the gear gear of the main transmission. 2 . Incorrect side gap to engage gears of the main transmission. 3 . Increased clearance in the bearings of the lead gear due to the weakening of the fastening nut or bearings. 1.1 . Adjust the engagement. 2.2 . Adjust the gap. 3.3 . Adjust the gap, if necessary, replace bearings. Knock at the beginning of the car 1 . Wearing a hole under the Satellites axis in the Differential Box 1.1 . Replace the Differential Box and, if necessary, the Satellite axis.

Replacing the head of the lead gear gear of the front bridge

Replace the gland when the oil leak is detected from under the gear flange.

Oil leaks can also be caused by an excess oil in a crankcase or a sapunion clogging.

You will need: The end head "on 27", the knob, a flat blade screwdriver, a dynamometer key. 1 . Turn the car in the parking brake, set the stops under the rear wheels of the car. Raise and install the front of the car to the supports. 2 . Holding the bolts from turning, unscrew the four nuts mounting nuts to the flange of the front axle gearbox, remove the bolts and remove the shaft to the side. 3 . Remove the front axle flange fastening nut and remove the flange with the reflector. 4 . Climbing a screwdriver, remove the gland from the bridge crankcase. 5 . Running suitable size Press the new oil seal into place. 6 7 . Tighten the front bridge lead gear flange nut nut, turning the shaft for the flange, so that the bearings sat down in place.

Removing and installing wheel shutdown coupling

The switch off clutch is removed to replace it or get access to other units. You will need: Key "On 14", a screwdriver with a flat blade, the puller of the outer stop rings. 1 . Remove the three fastening screws. 2 . And remove the clutch cap. 3 . Remove the six bolts of fastening the wheel shutdown and remove it. 4 . Remove the three screws of the clutch cover to the flange ... 5 . And remove the lid. 6 . The puller for the outer locking rings, remove the locking ring, pushing it with a screwdriver. 7 . Remove the lock ring and the washer installed under it. 8 . And remove the slotted sleeve from the flange. 9 . Set the items in the reverse order.

Removal and installation of the semi

The semi-axes of the front wheels are removed to be replaced during damage, the failure of the hinges of equal angular velocities (shruses) or to gain access to other units. 1 2 . Remove the brake disc. 3 . Remove the wheel speed sensor. 4 . Remove the pin mount bolts to the twilty fist and remove the axle assembly with the hub and the wheel shutdown clutch. 5 . Remove the bridge from the crankcase semi-axes assembled with the screen. 6 . Before installing the semi-axis, laid in the hinge of equal angular velocities Clean grease Sls0 4. 7 . Set the items in the reverse order. Replacement of the seafood of the front axle Replace the gland while detecting oil leakage from the swivel fist. You will need a flat blade screwdriver.

Oil leakage can also be caused by an excess oil in a crankcase or sapunion clogging.

1 . Turn the car in the parking brake, set the stops under the rear wheels of the car. Raise and install the front of the car to the supports, remove the wheel. 2 . Remove the swivel fist and secure it in the vice. 3 . Following a screwdriver, remove the gland from the ball support of the swivel fist. 4 . Install a new gland, carefully pressed it into a ball support with the mandrel of a suitable diameter, and lubricate the working edge of the lithol-24 lubrication.

As a mandrel, you can use the old gland.

5 . Set the items in the reverse order.

Removing and installing the main transfer of the front bridge

The main transmission is removed for repair or replacement. You will need: keys "on 10", the end head "on 19", "on 27". 1 . Turn the car in the parking brake, set the stops under the rear wheels of the car. Raise and install the front of the car to the support, remove the wheels. 2 . Remove the cork and drain the oil from the front axle. 3 . Remove both semi-axes. 4 . Disconnect the left tip of the steering traction from the steering mechanism and take the craving to the side. 5 . Holding the bolts from turning, unscrew the four nuts attaching the cardan shaft to the flange of the front axle gearbox and take it away. 6 . Remove ten crank cartridge cover bolts. 7 . And remove the lid. 8 . Clean the private surface from the old gasket. 9 . Remove the front axle drive flange fastening nut. 10 . Remove the flange with the reflector. 11 . Remove the two bolts of the fastening of the differential bearing covers, remove the lids and remove the differential assembly with the driven gear, and then the shaft with the drive gear assembled with the rear bearing. 12 . Remove the flange seal. 13 . Remove the front bearing of the lead gear from the front axle crankcase. 14 . Examine from the crankcase outdoor closures of the front and rear bearings of the lead gear shaft. 15 . Set the items in the reverse order. 16 . Adjust the main gear. 17 . Fill oil into the front axle crankcase.

Disassembly and assembly of the front bridge differential

You will need: keys "at 14", "on 17". 1 . Remove the differential assembly with the driven gear. 2 . Spress the bearings with the Differential Box Pins. 3 . Remove the ten tens of the driven gear bolts to the differential and remove the driven gear. 4 . Remove the eight bolts of the differential box cups and disconnect the cups. 5 . Remove the gears of differential and satellite with axes. 6 . Collect differential in order, reverse removal.

Before assembling differential, lubricate gear gears, satellites, stubborn washers and satellite axes with transmission oil.

7 . Tighten the fastening bolts of the Differential Differential Box Bolts evenly, turning each bolt on one turnover, alternately moving from the bolt to the bolt in diameter.