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"Gazelle": dismantling the box. "Gazelle Next": disassembly and assembly of the gearbox

The gearbox of any car is a rather complex unit, which is not easy to repair without proper preparation. The slightest violation in the work process can lead to damage to the mechanism on the move, which is fraught with an emergency situation. Nevertheless, having minimal skills and having studied the instruction manual, dismantling the box ("Gazelle") does not seem to be something supernatural by its own hands.

Transmission device

The gearshift assembly of the mechanical type in question has five stages. To carry out such an operation, as dismantling the box ("Gazelle"), it is necessary to know the device of the element. It includes:

  • A pair of aluminum sockets, which are connected with bolts;
  • Primary and secondary shaft, aggregating with cardan and crankshaft;
  • Also there is an intermediate mechanism equipped with threaded teeth of the first and reverse gear, as well as a block with gears and a speedometer drive;
  • Inertial synchronizers;
  • Ball-type fastening elements of speeds of the spring type;
  • Blocking simultaneous activation of transmissions;
  • Lever damper.

It is desirable to conduct an operation with a partner. Disassembly / assembly of the transmission ("Gazelle") will require knowledge of the vehicle's materiel, the ability to dismantle and properly assemble the unit after repair. When performing work, you must follow patience, accuracy and safety.

Dismantling of the checkpoint: step by step instructions

Disassembly of the box "Gazelle Next" is made in the following order:

  1. The car is put on the observation pit.
  2. Carter is completely freed from oil.
  3. The cardan is removed.
  4. Marking of the hinge and extension of the box in relation to each other, including the flanges of the rear axle (the marks are made by the nafile) are marked.
  5. The intermediate support clip is removed (use keys 12 and 13).
  6. The cardan fastener with the drive pin flange is loosened (keys 14 and 17).
  7. The tail of the gearbox is being shifted by sliding it back and pulling it out.
  8. The resulting hole is temporarily blocked by rags.
  9. Next, get the lever and remove the cover inside the cabin.
  10. In the next step, open the spacer sleeve, remove the rubber cushion and the locking element.
  11. It remains to unscrew the hood, remove the lever, turn off the speedometer and switch the light element of the reverse.

Then the gearbox is removed, the clamping tubes and fixing brackets are disconnected, and the cross member of the assembly is fastened by rocking and feeding back to the gearbox itself. It is desirable to protect the head of the block by placing a wooden beam.

Disassembly of the gearbox ("Gazelle Biznes i Next")

This action is also carried out in several stages. When carrying out work, remember that the gearbox weighs more than thirty kilograms, which requires additional precautions.

Disassembly:

  1. The bearing cover is removed, the sealing collar is changed.
  2. The fastening of the hub of the rear axle is removed.
  3. Retains the retaining ring on the input shaft bearing, as well as the breather.
  4. With the help of a hammer and a mandrel made of soft metal, the craters are disconnected.
  5. By turning the input shaft, a reverse gear is engaged.
  6. Lever bodies are dismantled, a plate with a gasket, fastening forks of the front stroke.
  7. The springs and the lock balls are removed.
  8. In a certain order, the rods are removed (first 1, 2, 5 reverse gear, then the rest).

With the help of a key turn off the fixing of the reverse axis, remove the lock ring, take out the shafts, which are then disassembled if necessary, without forgetting to mark their relative position. Disassembly of the box ("Gazelle Business") is completed, you can start repair and assembly.

Assembling the node

This manipulation is carried out in the reverse order. After the necessary elements have been repaired or replaced, shafts are installed at the same time. To do this, it is desirable to connect with each other by twine. Before starting the assembly, you need to carefully inspect the crankcase for any cracks, rust or other deformations.

Previously, all the details should be soaked in kerosene, ground any cracks and notches, replace all defective elements, grease them with special oil. Crankcase fastenings need to be treated with a sealant, and the existing gaskets must be replaced. Specialists recommend replacing bearings every 80-100 thousand kilometers.

Disassembly of the box ("Gazelle") and its installation require attention and accuracy. The assembly is mounted on the car by installing the assembled gearbox in the reverse order to removal. It is necessary to lubricate the splines beforehand, when installing the cardan - to trace the coincidence of the marked marks. After installation, you need to pour the necessary amount of oil into the crankcase and check the operation of the repaired unit.

Tools

Disassembling the box ("Gazelle"), the photo is presented above, requires the presence of certain tools and devices. Among them:

  • Set of keys (on 10/12/13/14/17/19);
  • Several screwdrivers;
  • A brass and a brass breaker;
  • Wooden bars;
  • Pliers (pliers);
  • Mounting;
  • Hammer, pullers;
  • Emery, nadfile;
  • Lining of soft metal;
  • Rags, mandrel, drainage tank, GOI paste, gear oil type SHRUS.

In addition, it is first necessary to worry about the presence of a viewing pit or trestle.

Disassembly of the box ("Gazelle"): when it may be necessary

The reason for the urgent repair of the gearshift assembly is a number of factors, namely:

  1. Impossibility of switching on the transmission or significant difficulties in performing this action.
  2. Extraneous sounds and crackling when switching speeds.
  3. Uncontrolled activation of gears (very dangerous, especially in dense traffic or at high speed).
  4. Any extraneous or unusual sounds in the area of the node under consideration.
  5. A signal for urgent repairs The gearbox "Gazelle" is also smoke and an unpleasant smell.

It is recommended to carry out preventive inspection and diagnostics of the gearbox no later than three hundred thousand kilometers of run.

Main causes of transmission failure

Disassembly of the box ("Gazelle" / 406 engine), as well as with other power units, may be required immediately. The cause of the failure is most often the following:

  • Deformation and destruction of worn parts or weakening of fasteners (causes buzzing noise when the system is operating);
  • Destruction of bearings (a characteristic crunch is heard in the checkpoint);
  • Wear of the synchronizer rings (there is a crash when switching speeds);
  • The presence of burrs, wear of gears, jamming in the drive causes difficulties with the inclusion of the transmission;
  • The speeds themselves can be switched on or off when the gear teeth are skewed, the fastening or the driven shaft is loosened;
  • Due to the loss of oil due to holes in the crankcase or weakening of the bolts, there are faults not only in the gearbox, but also in the aggregating units.

Conclusion

The car "Gazelle" in various modifications has become a very popular vehicle in the domestic market. This hardworking low-tonnage machine is used in construction, utilities, transportation and other industries. Not surprisingly, many repair operations owners prefer to perform on their own, while saving time and money.

It can be noted that the disassembly and assembly of the gearbox on the modification "Gazelle Next" or "Business" with their own hands is quite feasible. The main thing is to remember the technical nuances, safety precautions and the stages of work. To prevent the destruction of this important node, do not forget to change the oil in time, to diagnose the element, and also to react to the appearance of various failures in the operation of the unit or in the event of extraneous noise. If you are not sure of your abilities - better entrust repair of the checkpoint to specialists.

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