Disc Brake System: Testing and Inspection

BRAKE: FRONT BRAKE: INSPECTION

1. INSPECT BRAKE CYLINDER AND PISTON

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

If necessary, replace the disc brake cylinder and 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 (0.039 in.)

If the pad lining thickness is equal to or less than the minimum thickness, replace the disc brake pad kit.

3. INSPECT FRONT DISC BRAKE PAD SUPPORT PLATE

(a) Make sure that the disc brake pad supports have sufficient rebound, that there is no deformation, cracking or wear, and that all rust and dirt are removed.

If necessary, replace the disc brake pad support plate.

4. INSPECT DISC THICKNESS

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





Standard thickness:

22.0 mm (0.866 in.)

Minimum thickness:

19.0 mm (0.748 in.)

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

5. INSPECT DISC RUNOUT

(a) Check the bearing play in the axial direction and check for the axle hub runout Front Axle Hub.

(b) Using SST to hold the disc, tighten the disc with the hub nuts.





SST : 09330-00021

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

HINT
Use the SST to hold the disc while tightening the nuts.

(c) Using a dial indicator, measure the disc runout 10 mm (0.39 in.) away from the outer edge of the front disc.





Maximum disc runout:

0.05 mm (0.0020 in.)

If the runout exceeds the maximum value, change the installation positions of the disc and axle to make the minimum runout. If the runout exceeds the maximum even when the installation positions are changed, grind the disc. If the disc thickness is less than the minimum, replace the front disc.

(d) Remove the hub nuts and front disc.