Front Brake

BRAKE: FRONT BRAKE: INSPECTION

1. CHECK PAD LINING THICKNESS

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





Standard thickness:

12.5 mm (0.492 in.)

Minimum thickness:

1.0 mm (0.0394 in.)

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

HINT
Be sure to check the wear on the front disc after replacing the brake pad with a new one.

2. CHECK DISC THICKNESS

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





Text in Illustration





Disc Thickness:





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

3. CHECK BRAKE CYLINDER AND PISTON

(a) Check the cylinder bore and piston for rust or scoring.

If necessary replace the front disc brake piston or disc brake caliper assembly.

4. CHECK DISC RUNOUT

(a) Using SST to hold the disc, fix the disc in place with the 5 hub nuts.

SST : 09330-00021





Torque : 103 Nm (1,050 kgf-cm, 76 ft-lbf)

(b) Using a dial indicator, measure the disc runout 10 mm inside (0.394 in.) the outer edge of the disc.





Maximum disc runout:

0.05 mm (0.00197 in.)

(c) If the runout exceeds the maximum value, change the installation positions of the disc and axle so that the runout will become minimal. If the runout exceeds the maximum even when the installation positions are changed, check the bearing play in the axial direction and the axle hub runout Front Axle Hub. If the bearing play and the axle hub runout are normal and if the disc thickness is not within the specified range, shave the disc. If the disc thickness is less than the minimum, replace the disc.

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