Hydraulic Accumulator: Removal
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1988 Cadillac Fleetwood, 1988 Cadillac DeVille, 1987 Cadillac Fleetwood, 1987 Cadillac DeVille, and 1986 Cadillac Fleetwood. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Discharge brake system pressure. Remove hydraulic accumulator and "O" ring by turning accumulator. See Figure . Ensure no dirt particles fall into open port.