Contents: Checking and adjusting the height of…↓ Checking the free travel of the…↓ Checking the residual travel of the…↓
Checking and adjusting the height of the brake pedal
Fig. 6.10. Brake pedal height
Check the height of the brake pedal (Fig. 6.10).
Brake pedal height from engine compartment bulkhead:
- for left-hand drive: manual transmission - 148.1–158.1 mm;
- multimodal manual transmission - 149.9–159.9 mm.
Adjust the height of the brake pedal.
Remove the lower instrument panel trim panel.
Disconnect the connector from the brake light switch.
Remove the brake light switch assembly.
Loosen the pushrod lock nut.
Adjust the height of the brake pedal by turning the booster push rod.
Tighten the pushrod lock nut.
Tightening torque: 22 Nm.
Fig. 6.11. Brake light switch installation diagram
Insert the brake light switch into the bushing until it lightly touches the brake pedal (Fig. 6.11).
Note: Do not press the brake pedal.
Finally, install the brake light switch by turning it a quarter turn clockwise.
Tightening torque: 1.5 N·m or less.
Connect the connector to the brake light switch assembly.
Check the clearance of the brake light switch assembly.
Brake light switch gap: 1.5-2.5mm.
Checking the free travel of the brake pedal
Turn off the engine and press the brake pedal several times until the vacuum in the booster completely disappears.
Fig. 6.12. Brake pedal free travel
Gently press the brake pedal until resistance is felt. Measure the distance as shown in Figure 6.12.
Pedal free travel: 1.0–6.0 mm.
If the free play deviates from the permissible values, proceed to the next step.
Check the brake light switch gap.
Brake light switch gap: 1.5-2.5mm.
If the gap corresponds to the nominal value, the fault should be looked for in the brake system.
If there is a deviation from the permissible values, adjust the brake light switch gap.
Checking the residual travel of the brake pedal
Release the parking brake.
Fig. 6.13. Residual brake pedal travel
[The text is quoted from the source website: www.toyotaman.ru]
With the engine running, press the brake pedal and measure the remaining pedal travel as shown in Figure 6.13.
Residual travel of the brake pedal from the engine compartment partition when pressed with a force of 490 N: more than 50 mm.
If the residual travel deviates from the permissible values, the fault should be looked for in the brake system.