We remove the elements of the brake mechanisms for replacement or for repair
We have examined the replacement of the brake shoes of the front brake mechanisms in the article – Replacement of the brake shoes of the front wheels Renault Duster.
Replacement of the hose of the brake mechanism of the front wheel
We replace the brake hose in the presence of mechanical defects on it - scuffs, cracks or ruptures, as well as in the event of detection of a leak of brake fluid through the hose.
After a mileage of over 120 thousand km or 5 years of operation of the vehicle (depending on which occurs first), it is desirable to carry out a forced replacement of the hoses of both brake mechanisms of the front wheels.
We carry out the work on a level surface.
We remove the front wheel and securely fix the vehicle on a support.
Before unscrewing the union of the brake pipe from the upper end piece of the hose, we clean their joint with a metal brush from dirt and corrosion and apply to it a penetrating liquid of the WD-40 type.
In order to avoid leaks of brake fluid, we fit onto the pipe the rubber cap of the bleed union of the brake mechanism.
We bleed the hydraulic brake drive, as described in the article – Replacement and bleeding of the hydraulic drive of the brakes and clutch Renault Duster.
Replacement of the disc of the brake mechanism of the front wheel
The thickness of the brake disc must be at least 21.8 mm.
If on the disc of the brake mechanism there are cracks, deep scores, waviness, or other damage, it must be replaced.
The discs of the brake mechanisms of the front wheels must be replaced in pairs, and the brake shoes must also be replaced.
We place the vehicle on a level surface or on a lift.
We remove the front wheel and fix the vehicle on a support.
We turn the steering wheel to the stop towards the side on which we dismantle the disc.
We remove the caliper from the brake disc and tie it with wire or cord to the spring of the front suspension.
We remove the brake shoes.
With a metal brush we clean the heads of the screws securing the disc of the brake mechanism to the hub of the front wheel from dirt and corrosion.
To hold the disc from turning, one can screw into the threaded opening of the hub a bolt securing the wheel and insert a mounting lever between the bolt and the collar of the hub.
Before installing a new brake disc, we clean the mating surface of the hub from rust and dirt.
We install the disc in the reverse order.
We tighten the screws securing the disc and the bolts securing the shoe guide to the torques:
- - screw securing the brake disc to the hub – 14 Nm;
- - bolt securing the shoe guide to the steering knuckle – 80 Nm.
Replacement of the caliper of the brake mechanism of the front wheel
To perform the task the following tools will be required: 14 mm spanner, 18 mm socket, large screwdriver
We remove the caliper of the brake mechanism for replacement or repair, as well as to gain access to other units.
We loosen the tightening of the bolts of the front wheel on the side of the caliper being replaced.
We place chocks under the rear wheels.
We raise the front part of the vehicle and place it on supports.
Immediately we plug the opening of the end piece by any available means to prevent the outflow of brake fluid.
We install the caliper in the reverse order.
After installation we restore the level of brake fluid in the reservoir and bleed the system of the hydraulic brake drive.
