The CPP synchronizer is a mechanism that levels the speed of gears and shafts to switch the transmission. With the help of a synchronizer, the noise and mechanical wear of the elements decrease when changing the transmission, which increases the service life of the PPC. About this further in the article.

Synchronizer PPC 2110, device

Synchronizers are mounted in passenger cars for all PPCs. They work on a specific principle - leveling the speed using the friction force. When the difference between the speed of rotation of the gear and shaft is large, the friction force should achieve a slightly larger level to synchronize their actions. This phenomenon is observed when the highest gear is turned on.

The main element of the synchronizer is a hub where the internal and external slots are provided. The inner slots are used for clutch with the secondary shaft and, with the likelihood of the axial movement of the shaft on various sides. The lower slots are thus connected with the inclusion coupling, providing a rigid grip of the gears and a gearbox. Outside the power coupling is connected to the fork for PP.

In addition, the KP synchronizer includes a blocking ring, which is necessary to ensure good synchronization and so that when leveling the speeds, the coupling does not close. Inside the ring there is a conical surface that is designed to exchange actions with a friction cone gear. And to create the conditions for blocking the inclusion coupling, slots are installed from the outside of this locking ring.

The principle of operation of the synchronizer

All the actions of the Synchronizer of the PPC occur for the fraction of a second. When the PPC lever is located in a neutral position, gears and clutches, do not transmit power flow and freely rotate. If you wish to increase the speed by switching the gearbox, the lever has a clutch towards the gear direction. In this case, the system happens in the system.

When you turn on the required transmission on the coupling, crackers are shifted (small shutters), acting on the blocking ring, which faces the gear cone. This activates the strength of friction, which turns the ring until it stroops, after which the speed of the gear and shaft is synchronized. As a result, the engine is configured to other turnover, and the driver can increase the speed without much effort.

CPP Synchronizer, Possible Problems

1. If you hear the incomprehensible nature of the noise or crunch, it is quite possible that the blocking ring was deformed or a conical surface was worn.
2. In case of difficulty shifting - wear of the synchronizer itself.
3. If the transmissions are turned off spontaneously, the shutdown clutch is faulty or the gear was worn.

Tools assistants, consumables and adaptations

1. Marker or chalk.
2. Kerosene.
3. Engine oil.
   
4. Litol.
5. Screwdriver with a sufficiently strong handle and flat blade.
6. Passatia.

CPP synchronizer, how to remove it from the secondary shaft, step by step instruction

Before disassembly, you should first remove the synchronizer from the secondary shaft. At the very beginning it is very important to note with the help of chalk or marker location of the coupling regarding the hub. Next, carefully remove the clutch from the hub. It is necessary to remove it extremely carefully so that crackers with the balls do not scatter on the side under the influence of the springs. All extracted elements should be rinsed thoroughly in kerosene and decompose on a clean, non-lit surface.

CPP synchronizer, to pay attention to when inspection

It is necessary to conduct a scrupulous and attentive inspection of all elements - hubs, slots, couplings (pay attention to the ends of its teeth) for the presence of slabs and chips.

In addition, no less carefully inspect all the springs, crumbs and balls - they should have an ideal physical condition, they should not have coarse traces or visible traces of damage on their surface. Springs should not be too compressed or elongated. It should also check the gap between the crown of the gears and the ends of the ring.

When defects are detected on elements, change them to new ones. However, if there are too many damaged items, it is easier to replace the synchronizer.

CPP synchronizer how to assemble

After the proceeding operations done, before replacing damaged parts, lubricate them with a motor oil. Install the clutch back to the hub, focusing on the previously installed mark. If the tags will match, then the groove on the coupling (three of them) coincide with the grooves of the hub. Next you need to smear the lithol spring of the retainer and paste it into the groove of the hub. Then it is necessary to put a ball into the hole in advance with a lithol crush.

With the help of a screwdriver insert the hub in the groove the hub with a ball, squeezing in advance. The scene on the sugar, at the same time, should turn out to be outside, and the spherical surface - turned to the coupling. When mounting a crush, the ball inserted into it should get into the special grooves on the clutch slots, for which it should push it deeper.

Using a screwdriver, send a spring into the reservoir hole. The remaining clamps should also be installed.

Tips Profi, how to extend the life of a car synchronizer

As a rule, rapid wear and breakdown of the elements of the synchronizer are due to coarse work with the PP lever. To extend the performance of the synchronizer and prevent problems with it, switch speeds should be smoothly, without jerks.