Brake pads are an integral part of any car. On cars of the Renault Logan brand, a combined brake system is installed. So, in front you can see the disc elements, and in the back - drum elements. The pads are equated to consumables, so from time to time the machine needs to replace the rear pads. Renault Logan 1.4 is no exception. Today we will tell you when and how to change these items on Renault Logan cars.
How much do they serve, when to change?
The resource of pads is a very controversial topic for conversation. Indeed, many factors influence their service life - driving style, vehicle load, its curb weight and road conditions.
Also note the fact that the front pads have a resource 2 times lower than the rear. The latter serve 50-100 thousand kilometers. This is due to simple physical factors - when braking, the load is given to the front axle. How to determine whether the car needs a replacement rear pads? Renault Logan is equipped with drum mechanisms that are hidden behind a metal cover. Therefore, it is not possible to visually determine the wear of friction materials, as is the case with front disc calipers.
Therefore, here you need to be guided by the rules of replacement and the behavior of the car. If the car began to brake worse, while holding the handbrake poorly (namely, it clamps the rear drums), then the car needs to replace the rear brake pads. Renault Logan 1.4 may also require repairs in the event of greasing of the friction linings or delamination of the material.
Instruments
What is needed for replacement? In the course of work, we will need the following tools:
- Set of wrenches.
- Set of heads.
- Flat screwdriver.
- Sliding pliers.
- Jack.
What is the replacement of the rear pads still without? Renault Logan will additionally require an atomizer to clean the pads. You will also need a piece of wire, a container for brake fluid and universal lubricant VD-40. Since we will work with chemicals, we need to prepare rubber gloves.
Do not forget to prepare and wheel stops. To replace the rear pads, apply the parking brake. To prevent the machine from moving forward in a suspended state, install two “shoes” under the front wheels (building bricks are suitable from improvised means).
note
Replacing items such as brake pads is done in pairs. That is, during the work we need to install 4 new overlays, 2 on each side. Is it possible to partially replace the rear brake pads? Renault Logan 1.6 will steer aside at any attempt to reduce speed. Therefore, the linings are fully changed.
Getting to work
So, where does the replacement of the rear pads begin? Renault Logan 1.6 is installed on the jack (do not forget about the stops). First you need to loosen the bolts of the wheel. Then it is necessary to treat the protective cap of the drum with VD-30 liquid and remove the ABS sensor (if the car was equipped with one). After that, the hood opens and the level of brake fluid in the tank is checked. It needs to be drained to an average mark. Next, the head in the drum scrolls with the “30” head. Please note that when replacing the left block, the nut is unscrewed counterclockwise. In the case of the right, everything is exactly the opposite. How is the rear brake pads replaced further? Renault Logan continues to stand still, and while we proceed to dismantle the brake drum. Next, we pick up a special spray solvent and treat it with old brake pads.
After a while, wipe it dry with a clean rag. Next, remove the spring gap adjuster pads. The coupling spring is also removed. The front trim slides forward. At this time, it is necessary to turn the bar half a turn along the axis and remove it. The cup along with the regulator is also removed. Next, you need to get the spring, which secures both pads, remove the support rack and mounting cup. We remove the back block from the shield and take out the lever from the parking brake cable.
Now you can finally remove the pads. Using a piece of wire, it is necessary to tighten the piston of the brake cylinder. After that, we apply silicone grease to the ribbed protrusions (to where the shield is in contact with the pads). Motorists recommend using PentaSIL. It provides lubrication at temperatures up to 250 degrees Celsius. Before installing new pads, the retaining ties must be removed. How is the rear brake pads replaced further? Renault Logan is equipped with new friction linings. Below we will consider in detail the assembly algorithm.
Assembly
First of all, it is necessary to thoroughly blow and clean all the connecting parts and nodes of the drum mechanism. After installation of blocks it is required to put in place the top spring. It is mounted in the short part to the right. Next, an adjustment bolt is installed. A second spring is worn on the right side. Pads finally "start up".
The upper and lower springs are mounted on special hooks. Next, you need to install cotter pins ("soldiers") on the back of the casing and install a brake drum. However, to do this, you need to maximize the pads. How? Using a screwdriver, you need to twist the drums in the upper part of the mechanism. The drum cover should fit snugly into the seat. At the same time, he should be in little contact with the pads during rotation of the disk. Tighten the drum cap nuts. Do not forget to add brake fluid.
Tightening torques for wheel bearings
How is the rear pad replaced further? Renault Logan descends from the jack. At the end, the hub nut is tightened. Experts recommend using a torque wrench. The nut on the rear wheel hub of Renault Logan is tightened with a force of 180 to 210 Nm. In the absence of such a tool, you will have to expose everything by eye. So, the nut is twisted until there is a slight play on the wheel. The disk should "walk" a little if it is swayed from side to side. Be careful: if you tighten the nut, the wheel bearing may fly apart. Installing a new one will cost you 5 thousand rubles excluding work.
Conclusion
So, we found out how to replace the rear pads on their own. Renault Logan is a very maintainable French car. Therefore, the majority of repair operations can be performed with our own hands. In the case of the front pads, the situation is even simpler. To replace them, just remove the bracket, remove the old linings from the rails and install new ones in their place. It is not necessary to unscrew the hub nut.