The document provides instructions for removing and installing an accumulator from a M322D wheeled excavator. The key steps are: 1. Release hydraulic system pressure according to separate instructions. 2. Disconnect hoses and brackets from the accumulator. 3. Remove mounting bolts and lift the accumulator away from the machine. To install, follow the removal steps in reverse, reconnecting all hoses and brackets and torquing mounting bolts. Proper containment of hydraulic fluids is emphasized.