Lubricate the rubber seal collar with soapy water. The entire rotating seal assembly, which includes the carbon seal ring, rubber collar, brass collar and compression ring, is to be pushed onto the shaft as one unit. Do not attempt to assemble the seal by placing the individual components on the shaft one at a time. The notches in the brass collar should be aligned with recesses found on each side of the carbon insert.

The brass compression ring should now be pressed tightly to the upper end of the rubber collar. A screwdriver can be used at several points along its periphery to provide a fit that is both tight and even. Press with the screw-driver do not tap. Tapping on the seal may break the ceramic or carbon insert.