An integral tube-loading assembly for a peristaltic pump having an eccentric motor shaft mounting a rotor within a housing wall including a trunnion mounted on the rotor shaft, a first link pivotally mounted on the trunnion, a second link pivotally mounted on the first link, a tube-loading pin member carried in a slot in the second link, the trunnion and first and second links being positioned on the rotor so that the pin member is always directed at the maximum spacing between the rotor and the housing wall, and a threaded bore in the rotor for receiving the pin member in a stowed condition.