(57) A breaking device (15) comprising a frame (11), an impact device (12) comprising a pressure chamber (16) comprising a rear pressure chamber (16a) and a front pressure chamber (16b). The breaking device further comprises a first low pressure port (29) at the rear pres sure chamber (16a) and a first low pressure channel (30) and a first low pressure accumulator (31) connected to the first low pressure channel. The breaking device further comprises a second low pressure port (32) at the rear pressure chamber (16a) substantially opposite to the first low pressure port (29) and a second low pressure channel (33) and a second low pressure accumulator (34) con nected to the second low pressure channel. The first low pressure accumulator and the second low pressure accu mulator are arranged at the outer circumference of the frame of the breaking device at different positions in the axial direction of the breaking device. (Figure 3) 1 0 18 38 39 16b 16 33 33a 32 25
