Instruction Manual

16
7.1 Diaphragm Removal & Reinstallation
1. Adjust the stroke setting to 0% and disconnect the power source to the drive motor.
2. Relieve all pressure from the piping system.
Take all precautions described under the WARNINGS on page 14, Section 7 to prevent
environmental damage and exposure of personnel to hazardous materials.
3. Close the inlet and outlet shutoff valves.
4. Place a pan underneath the pump head adaptor to catch any liquid leakage.
5. Note the orientation of the existing check valve components. Loosen the union nuts
holding the check valves and piping to the reagent head. Remove the check valve
assemblies, drain and rinse them, and set them aside in a safe place. Unscrew the union
nuts completely from the regent head.
Figure 9, wet end
components