 printable version
Removal, check and installation of the front brake pads
Withdrawal
| Fig. 6.22. Front disc brake: 1 - connecting pipe (brake hose and tube assemblies); 2 - the front brake caliper assembly; 3 - Disc
|
The components of the front brake diskogvogo pakazany on Fig. 6.22.
Checking and changing pads front disc brakes
Check the thickness of the brake linings through hole technology support (Fig. 6.23).
ATTENTION If the lining thickness of a brake pad is less than the limit, replace the brake pads on the left and right wheels kit. |
If there is a noticeable difference in the thickness of the brake pad on the left and right sides of a support, check the smooth movement of the caliper on the guide bushings and the locking fingers. Remove the guide pin, lift up the caliper assembly and suspend it with a wire.
NOTE Be careful not to get a lock and guide pin lubrication. |
| Fig. 6.24. To remove parts from caliper: 1 - the brake pads and the LED assembly; 2 - brake shoe assembly; 3 - lock; 4 - outdoor installation
|
Remove the caliper parts in the order shown in Figure 6.24.
Check the thickness of the brake disc
| Fig. 6.25. Measuring thickness of a brake disk
|
Using a micrometer, measure the thickness of the brake disc in eight points about every 45 ?� at a distance of 10 mm from the outer edge of the disc (Fig. 6.25). Brake Disc Thickness: - Nominal value - 26 mm; - Limit: 24.4 mm
NOTE The change of the thickness of at least 8 points. |
If the thickness of the disc does not correspond to the limit value or drive unevenly worn, remove it and install a new one.
Checking the front brake disc run-out
Remove the caliper assembly, lift and secure to the side with a wire (Fig. 6.26).
NOTE To secure the brake disc to the hub, tighten the wheel nuts. |
| Fig. 6.27. Measurement of palpation of a brake disk
|
Set the dial gauge at a distance of about 5 mm from the outer edge of the brake disc, and measure the run-out disk (Fig. 6.27). Limit: 0.04 mm.
Adjusting the brake disc run-out If the value of the brake disc run-out corresponds to the limit value or exceeds it, then try to change the relative position of the disk and the hub, and then measure the runout.
Before removing the brake disc at the point of maximum runout put chalk marks on both sides of the wheel studs (Fig. 6.28).
| Fig. 6.29. Measuring the axial clearance in the bearing hub
|
Remove the brake disc and set the dial gauge as shown in Figure 6.29. By moving the hub in the axial direction, measure the axial clearance in the bearing hub. Limit: 0.05 mm. If the axial clearance is equal to the limit value or exceeds it, then remove the hub and check the steering knuckle and the hub.
| Fig. 6.30. Re-measurement of the brake disc run-out
|
If the axial clearance in the bearing hub does not exceed the limit value, then turn the brake disc 180 ?� from the chalk line, place it on the hub, and again repeat the measurement heartbeat brake disk (Fig. 6.30). If you performed steps have not eliminated the increased beating of the disk, replace the brake disc.
Setting Install the brake pad retainers.
Install the brake shoes in the brake pad retainers (Fig. 6.31).
NOTE It is necessary to replace all four brake pads set. When replacing brake pads, check the deformation. When replacing the brake pad retainers install a new or used one lock only after clearing it from debris. |
Insert the piston into the working brake cylinder with a special tool or by using the handle of a plastic hammer. Carefully place the caliper assembly so as not to damage the piston boot. Tighten the two guide pin to the specified torque: 22-32 Nm.
| 
