Varian 212-LC Manual Del Usuario página 29

Frame Drive Casting
Ceramic Piston
Assembly
Figure 13 Spring Housing Replacement
To reinstall the ceramic pistons, push the ceramic pistons back into the
spring housing through the rear bushings using care to avoid scratching
the ceramic surface. Tighten the spring housing to the frame drive
casting and install the wash seal assemblies, manifold, piston seal
assemblies, and pump head following the procedures previously
described.
27
Spring Housing
Alignment Pins