Pintle fixing construction for radial plunger pump

A radial plunger pump, comprising a pump housing having a pintle receiving opening therein opening outwardly of the pump housing only at one side of the pump housing, means defining a suction passage and a discharge passage in the pump housing and communicating with the pintle receiving opening, a pintle received in said pintle receiving opening, said pintle being smaller in radial dimension than a radial dimension of said pintle receiving opening so that a gap exists therebetween, a rotor rotatably mounted on the pintle and in the gap, said rotor having a plurality of radially extending cylinder bores therein, a guide ring disposed around the rotor in eccentric relationship with the rotor, a plurality of plungers slidably fitted in the radially extending cylinder bores, said plungers each having an end projecting radially of the rotor and slidably engaging the guide ring, drive means for driving the rotor for rotation, said pintle including means thereon for engaging a wall surface of the pintle receiving opening, and fastening means for fixedly securing the pintle to the wall surface and further including means for positioning the pintle with respect to the pump housing.