Toyota 44610-2G080
Brake Booster

A technician must start vacuum brake booster service by completing the front LH wheel removal task with a proper torque of 103 Nm (1,050 kgf cm, 76 ft. lbs.). The vacuum hose from the brake booster must be disconnected while also removing the master cylinder. The procedure requires Special Service Tool: 09751-36011 and a spanner to clean up the front LH brake line from the flexible hose before pulling out the brake line with its grommet from the body. Remove the brake booster after removing all parts starting with the lower No.1 panel, finish panel, return spring, clip, clevis pin and continuing to the clevis and 4 nuts before extracting the brake booster and its gasket. The installation requires a new gasket and brake booster which needs 4 nuts torqued up to 13 Nm (130 kgf-cm, 9 ft. lbs.) then the clevis needs to be placed and its lock nut torqued up to 25 Nm (260 kgf-cm, 19 ft. lbs.). Proceed by inserting the clevis pin through the clevis and brake pedal, fasten it with the clip and attach the pedal return spring. Install the front LH brake line together with the grommet by feeding it into the body then connecting it to the flexible hose through the use of Special Service Tool: 09751-36011 and a spanner for torquing up to 15 Nm (155 kgf-cm, 11 ft. lbs.). The ABS actuator assembly installation should be done when required. During brake master cylinder replacement adjust the push rod length using chalk on equipment until a 0 mm (0 inch) measurement is obtained between the rod and tool. Applicable adjustments should be made while checking that the booster maintains vacuum through multiple brake pedal depressions while the engine remains off. The vacuum hose will connect to the brake booster followed by master cylinder installation before filling the reservoir with brake fluid while performing a brake system bleed. After checking for fluid leakage you should verify and align the brake pedal before installing the finish panel with its lower No. 1 counterpart. Finally, perform an operational check.

Insert the clevis pin into the clevis and brake pedal, securing it with the clip, and install the pedal return spring.

Connect the vacuum hose to the brake booster, install the master cylinder, fill the brake reservoir with brake fluid, and bleed the brake system.

Insert the clevis pin into the clevis and brake pedal, securing it with the clip, and install the pedal return spring.