Hydraulic brake booster (for LHD) Disassembly

Using a 5 mm hexagon wrench, remove the bolt and No. 1 brake actuator bracket.

Using a screwdriver, disconnect the brake fluid level warning switch connector from the No. 1 brake actuator bracket.

Using a pin punch and hammer, remove the pin from the brake master cylinder reservoir.

Remove the screw and pull out the brake master cylinder reservoir sub-assembly.

Remove the master cylinder reservoir filler cap.

Remove the 3 reservoir grommets from the master cylinder reservoir.

Using needle nose pliers, slide the 2 clips and remove the brake actuator hose and 2 clips.

Using a union nut wrench, remove the No. 1 brake actuator tube.

Using a screwdriver, remove the 2 plugs.

Remove the 2 screws and disconnect the wire harnesses from the master cylinder solenoid.

Using a screwdriver, remove the clip.

Remove the brake booster with accumulator pump assembly from the brake master cylinder.

Remove the 2 brake booster pump collars and 2 brake booster pump bushes from the brake booster with accumulator pump assembly.

Using a 4 mm hexagon wrench, remove the 2 pins.

Using a 5 mm hexagon wrench, remove the 2 bolts and No. 1 brake booster pump bracket from the brake master cylinder solenoid.

Remove the brake booster pump bush from the No. 1 brake booster pump bracket.

Secure the brake booster with accumulator pump assembly in a vise.

Remove the brake booster accumulator.

Remove the O-ring from the brake booster accumulator.

NOTICE:

Ensure no foreign matter enters the pump.

Remove the brake booster accumulator pipe and compression spring.

Remove the 6 bolts and master cylinder solenoid.

Remove the gasket.

Loosen the lock nut on the rod operating adapter, and remove the push rod clevis and lock nut.

Loosen the lock nut on the brake master cylinder side, and remove the rod operating adapter and lock nut.

Pressing the piston in with a screwdriver, insert a pin or equivalent from the hole in the master cylinder body to hold the C-ring, and then remove it with another screwdriver.

HINT:

Tape the screwdriver tip before use.

Remove the plug from the piston.

Remove the piston by pulling it straight out, not at an angle.

NOTICE:

If the piston is pulled out at an angle, there is a possibility that the cylinder bore could be damaged.