We remove the elements of the brake mechanisms for replacement or repair
We discussed the replacement of the front brake pads in the article - Replacing the brake pads of the Renault Duster front wheels.
Replacing the front wheel brake hose
We replace the brake hose if it has mechanical defects - scuffs, cracks or breaks, as well as if brake fluid leaks through the hose.
After a run of more than 120 thousand km or 5 years of operation of the car (whichever comes first), it is advisable to carry out a forced replacement of the hoses of both front wheel brakes.
We carry out work on a flat area.
Remove the front wheel and securely fix the car on the stand.
Before unscrewing the brake pipe fitting from the upper hose end with a metal brush, clean the place of their connection from dirt and corrosion and apply an easily penetrating liquid like WD-40 to it.
With a special wrench for fittings of brake pipes by 11, we unscrew the fitting of the brake pipe from the upper tip of the hose.
Remove the hose tip from the body bracket hole.
In order to avoid leakage of brake fluid, we put a rubber cap on the brake bleed valve on the tube.
Remove the rubber hose coupling from the shock strut eye
Using a 14 wrench, unscrew the lower end of the hose from the hole in the front wheel brake housing
Remove the hose
Install the hose in reverse order. We pump the hydraulic brake drive, as described in the article - Replacing and pumping the hydraulic brake and clutch Renault Duster.
Replacing the front wheel brake disc
The thickness of the brake disc must be at least 21.8 mm.
If there are cracks, deep scratches, ripples, or other damage on the brake disc, it must be replaced.
The brake discs of the front wheels must be replaced in pairs, and the brake pads must also be replaced.
We install the car on a flat area or on a lift.
Remove the front wheel and fix the car on a stand.
Turn the steering wheel to the limit in the direction on which we dismantle the disk.
Remove the caliper from the brake disc and tie it with a wire or cord to the front suspension spring.
Remove the brake pads.
Using an 18 spanner, unscrew the two bolts securing the guide pads to the steering knuckle.
Remove the shoe guide.
With a metal brush, we clean the heads of the screws securing the brake disc to the front wheel hub from dirt and corrosion.
Using a Torx T-40 wrench, unscrew the two screws securing the brake disc to the front wheel hub.
To keep the disc from turning, you can screw into the threaded holehub bolt and insert a mounting spatula between the bolt and the shoulder of the hub.
Remove the disc from the hub.
Before installing a new brake disc, we clean the mating surface of the hub from rust and dirt.
Install the disc in reverse order.
Tighten the screws for fastening the disc and the bolts for fastening the guide pads to the moments:
- screw for fastening the brake disc to the hub - 14 Nm;
- bolt for fastening the guide pad to the steering knuckle - 80 Nm.
Replacing the front wheel brake caliper
To complete the task, you will need tools: wrench 14, socket 18, large screwdriver
We remove the brake caliper for replacement or repair, as well as to gain access to other units.
Loosen the front wheel bolts on the side of the caliper to be replaced.
We substitute shoes under the rear wheels.
Raise the front of the car and place it on the stops.
By inserting a large screwdriver between the inner brake pad and the piston of the working cylinder, we sink the piston of the working cylinder into the cylinder
Loosen the lower end of the brake hose
Loosen the two bolts of the lower and upper mounts of the caliper assembly from the shoe guide to the steering knuckle
Unscrew the bolts
Disconnect the caliper from the steering knuckle and remove it by screwing it off the tip of the brake hose.
Immediately plug the tip hole in any way possible to prevent leakage of brake fluid.
Install the caliper in reverse order.
After installation, we restore the level of brake fluid in the reservoir and bleed the hydraulic brake system.