Vessel Replacement Procedure:

^ Pump the brake pedal until there is firm resistance.

^ Cut and remove the wire connector straps, (Fig. 1 A).

^ Unplug the connector RS 25, (Fig. 1 B).

^ Raise the vehicle on a lift.

^ Thoroughly clean the accumulator and pipe connections.

^ Unscrew the union nuts and disconnect the pipes from the accumulator, (Fig. 1 C).

^ Install protective caps/plugs to the pipes and accumulator.

^ Remove the accumulator clamp nut and bolt, (Fig. 1 D).

^ Remove the accumulator assembly.


^ Place the accumulator assembly on a work bench and remove the plug from the accumulator manifold non-return valve union.

^ To prevent dirt ingress, place a piece of adhesive tape over the non-return valve union orifice.

^ Clamp the accumulator in a vise with soft-faced jaws across the non-return valve union face and the casting.

^ Using a strap wrench, unscrew and remove the accumulator vessel.


CAUTION: All components must be clean before assembly. The accumulator should be free from dirt and any foreign materials.


^ Check that an "O" ring seal is on the replacement accumulator vessel thread.

^ Install the replacement accumulator vessel and, using the strap wrench, torque to 21-26 ft.lbs.

^ Remove the adhesive tape from the non-return valve orifice and install the plug to the non-return valve union.

^ Install the accumulator assembly to the vehicle.

^ Lower the vehicle.

^ Connect RS 25 plug and socket. Secure with a tie strap.

^ Start the engine and allow the hydraulic system to pressurize. Check the system for any leaks.

^ Check and top up the hydraulic system if necessary. Use only the recommended HSMO and do not overfill the reservoir.