4. LUBRICATION SYSTEM VITALITY 50 Measure the rotor end-to-pump body clearance. Service Limit: 0.12mm Inner Rotor ASSEMBLY Install the outer rotor, inner rotor and pump shaft into the pump body. Dowel Pin Insert the pump shaft by aligning the flat on the shaft with the flat in the inner rotor. Install the dowel pin. Install the pump cover by aligning the hole in the cover with the dowel pin. Tighten the screw to secure the pump cover. Make sure that the pump shaft rotates freely without binding. Screws 4-12