Front Brake

BRAKE (FRONT): FRONT BRAKE: INSPECTION

1. INSPECT BRAKE CYLINDER AND PISTON

(a) Inspect the brake cylinder bore and piston for rust and scoring. If necessary, replace the disc brake cylinder and front disc brake piston.

2. INSPECT PAD LINING THICKNESS





(a) Using a ruler, measure the pad lining thickness.

Standard thickness:

12.0 mm (0.472 in.)

Minimum thickness:

1.0 mm (0.0394 in.)

If the pad lining thickness is less than the minimum, replace the brake pad.

HINT
Be sure to check the wear of the front disc after replacing the brake pads with new ones.

3. INSPECT FRONT DISC BRAKE PAD SUPPORT PLATE

(a) Make sure that each front disc brake pad support plate has sufficient rebound, that there is no deformation, cracks or wear, and that all rust and dirt are removed.

If necessary, replace the front disc brake pad support plate.

4. INSPECT DISC THICKNESS

(a) Using a micrometer, measure the disc thickness.





Standard thickness:

28.0 mm (1.102 in.)

Minimum thickness:

25.0 mm (0.984 in.)

Text in Illustration





If the disc thickness is less than the minimum, replace the front disc.

5. INSPECT DISC RUNOUT

(a) Inspect the front axle hub bearing looseness Front Axle Hub and front axle hub runout Front Axle Hub.

(b) Install the disc with the 5 hub nuts.

Torque : 103 Nm (1050 kgf-cm, 76 ft-lbf)

(c) Using a dial indicator, measure the disc runout 10 mm (0.394 in.) away from the outer edge of the front disc.





Maximum runout:

0.05 mm (0.00197 in.)

Text in Illustration





If the runout is more than the maximum, change the installation position of the disc to minimize runout. If the runout is more than the maximum even when the installation position is changed, grind the disc. If the disc thickness is less than the minimum, replace the front disc.

(d) Remove the 5 hub nuts and front disc.