2. Remove the master cylinder as described in Chapter 13.
3. Place a container under the booster unit, then unscrew the union nuts and disconnect the feed and return pipes. Seal the ends of the pipes.
4. Disconnect the wiring from the differential pressure indicator, unscrew the switch from the booster unit. Remove the washer.
5. From inside the vehicle, disconnect the return spring from the brake pedal and the booster pushrod clamp. Remove the bracket and remove the pin.
6. Remove the mounting nuts securing the booster unit to the pedal hanger and bulkhead.
7. Remove the amplifier unit into the engine compartment. Remove the gasket.
8. Before installing the block, check the size of the push rod, referring to Fig. 9.32. If necessary, loosen the lock nut, reinstall the clamp, then re-tighten the lock nut.
9. Installation is carried out in the reverse order. Use a new gasket and tighten all nuts and bolts to the specified tightening torque Specification. Finally, top up the tank with the specified liquid (see Section 10 if necessary). Place the front wheels straight ahead and run the engine at idle speed for approximately two minutes. Turn off and immediately check the fluid level in the reservoir. Top up to the maximum mark, if necessary.