Component
1. Front Brake Caliper
1-a. 98.1 - 117.7 N·m (10.0 - 12.0 kgf·m, 72.3 - 86.8 lb·ft)
2. Front Brake Disc
2-a. 4.9 - 5.9 N·m (0.5 - 0.6 kgf·m, 3.6 - 4.3 lb·ft)
3. Front Axle Assembly
On Vehicle Inspection
Disc cleaning before inspection
The rust generated on brake discs of long-term non-operating vehicles is naturally removed under normal driving conditions. However, it can affect the thickness and runout measurements, so for accurate measurements, remove them according to the procedure below.1.Check the brake disc for rust.
2.Spray with cleaning solution on rusted disc surface.
Cleaning Solution :Water-Detergent [Water : 0.08 gal (300 ml) Detergent : 0.004 gal (15 ml)]
3.Turn the vehicle ON, and then pull the RH paddle shift (A) to enter the regenerative braking mode '0'.
4.Drive the vehicle up to 30 mph (48 km/h) and depress the brake up to stop for complete repeat more than 5 cycles.
5.Clean the brake disc with clean water.
6.Check the brake disc for rust.
7.If rust is not removed, repeat the above procedure again.
Front brake disc thickness check
1.Remove the front wheel and tires.(Refer to Suspension System - "Wheel")
2.Check the brake disc for damage.
3.Measure the brake disc thickness (A) and run-out using the micro meter and dial gauge at least 24 locations on the same column along the lines shown in the figure below.
Front brake disc thickness (A)17" Disc standard : 30 mm (1.18 in.)17" Disc service limit : 28 mm (1.10 in.)20" Disc standard : 34 mm (1.33 in.)20" Disc service limit : 31.6 mm (1.24 in.)The difference between each measured thicknessless than 0.015 mm (Column and Radial direction)
4.If the thickness difference between each measuring part is greater than standard, resurface or replace the brake disc.
• Resurface the brake disc according to the procedure based on the available machining equipment.
• If the brake disc is less than or equal to the limit, replace the brake disc with a new one.
5.Install the front wheel and tires.(Refer to Suspension System - "Wheel")
Front Brake Disc Runout Inspection
1.Remove the front wheel and tires.(Refer to Suspension System - "Wheel")
2.Install the dial gauge perpendicular to the brake disc's external diameter of 10 mm (0.40 in.) and rotate the disc to measure the run-out.
Brake Disc Runout :Service limit : less than 0.050 mm (0.0019 in.)
3.If the brake disc run-out exceeds the limit, resurface or replace the brake disc.
• Resurface the brake disc according to the procedure based on the available machining equipment.
• If the brake disc is less than or equal to the limit, replace the brake disc with a new one.
4.Install the front wheel and tires.(Refer to Suspension System - "Wheel")
Special Service Tool
| Tool Name / Number | Illustration | Description |
|
Piston Expander 09581 - 11000 |
|
Spreading the front brake caliper piston. |
Removal
1.Remove the front wheel and tires.(Refer to Suspension System - "Wheel")
2.Open the front brake caliper body (A) upwards after removing the bolt.
Tightening torque :21.6 - 31.4 N·m (2.2 - 3.2 kgf·m, 15.9 - 23.1 lb·ft)
3.Remove the brake pads (A).
4.Remove the brake pad slider shims (A).
5.Remove the front brake caliper (A) after removing the bolt and washer.
Tightening torque :98.1 - 117.7 N·m (10.0 - 12.0 kgf·m, 72.3 - 86.8 lb·ft)
• Secrue the removed brake caliper (A) using a wire such as cable tie.
• Do not reuse the front brake caliper mounting bolts.
6.Remove the brake disc (A) after removing the screws.
Tightening torque :4.9 - 5.9 N·m (0.5 - 0.6 kgf·m, 3.6 - 4.3 lb·ft, 43.4 - 52.1 lb·in)
Installation
1.Install in the reverse order of removal.
• Be careful not to damage the piston when pressing it.
• Be careful not to touch the piston when installing the caliper body to the torque member.
• Press the brake piston using SST (09581 - 11000) when installing the caliper body.
2.Depress the brake pedal several times to ensure that the brake pads are correctly positioned, then check operation.
