A milking parlour comprising milking equipment, a milking pit , a first stalling arrangement for holding at least one animal during milking at a first side of the milking pit , a second stalling arrangement for holding at least one animal at an opposite second side of the milking pit , a supporting member arranged centrally in the milking pit , and a support arm assembly for the milking equipment, the support arm assembly comprising a pivotable support arm and a stationary arm suspension for supporting the pivotable support arm , the pivotable support arm comprising a first pivot member and an elongated arm member having a distal end portion and a proximal end portion , and the stationary arm suspension comprising a second pivot member , wherein the stationary arm suspension is arranged centrally in the milking pit with the second pivot member connected to the supporting member , and wherein the elongated arm member is configured to support a milking cluster of the milking equipment at the distal end portion and the first pivot member is connected to the proximal end portion , characterized in that the first pivot member and the second pivot member interact to permit the distal end portion of the elongated arm member to be pivoted in a first direction and an opposite second direction in a substantially horizontal plane, and that the support arm assembly comprises a holding device configured to maintain the elongated arm member in a first pivotal position when the elongated arm member is subjected to a pivotal force smaller than a threshold force in the first direction or the second direction . milking equipment, a milking pit , a first stalling arrangement for holding at least one animal during milking at a first side of the milking pit , a second stalling arrangement for holding at least one animal at an opposite second side of the milking pit , a supporting member arranged centrally in the milking pit , and a support arm assembly for the milking equipment, the support arm assembly comprising a pivotable support arm and a stationary arm suspension for supporting the pivotable support arm , the pivotable support arm comprising a first pivot member and an elongated arm member having a distal end portion and a proximal end portion , and the stationary arm suspension comprising a second pivot member , wherein the stationary arm suspension is arranged centrally in the milking pit with the second pivot member connected to the supporting member , and wherein the elongated arm member is configured to support a milking cluster of the milking equipment at the distal end portion and the first pivot member is connected to the proximal end portion , characterized in that the first pivot member and the second pivot member interact to permit the distal end portion of the elongated arm member to be pivoted in a first direction and an opposite second direction in a substantially horizontal plane, and that the support arm assembly comprises a holding device configured to maintain the elongated arm member in a first pivotal position when the elongated arm member is subjected to a pivotal force smaller than a threshold force in the first direction or the second direction . <EOS>