Hydraulic pressure is stored in the Otomatec original accumulator and used to operate the shifting mechanism of the transmission. An essential part of the transmission, the accumulator aids in smooth gear shifts and lessens wear and strain on other parts of the transmission. But with time, the accumulator might endure its own wear and tear, which could cause a number of transmission-related problems. Hard shifts, delayed shifts, and slipping gears are typical signs of a bad accumulator.