2. With goggles or safety glasses on, disassembly begins by removing the pulley on the front with a power-steering-pulley puller (for pressed-on pulleys). A regular gear puller that grabs the outside of the pulley will ruin the pulley. The puller must act on the pulley’s hub. If a nut retains the pulley, remove the nut, support the pulley’s hub from behind, then tap squarely on the shaft’s center with a soft mallet. Threading the nut to where it is flush with the edge of the shaft will also prevent the threads from being damaged. With the pulley off, the keyway is removed from the front shaft. These parts will be reused, so set them aside. Moving around to the back, remove the two studs/bolts (some pumps have only one), and the pressure-hose fitting.