Waters Autospec Premier Operator's Manual page 185

3. Using a ceramic spacer as a support for the repeller, fit the ion block
over the repeller's shaft.
4. Fit the remaining ceramic spacer over the ceramic spacer on the repeller
shaft, at the top of the ion block.
5. Fit the repeller contact ceramic spacer over the repeller shaft, onto the
ion block.
Source maintenance 7-27