Parker PCO2, User Manual

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5.4 Maintenance Procedures
5.4.1 Cartridge Replacement Procedure (PCO2-400 Models Only)
A Remove the M12 nuts from one side of the manifold.
B Using the handle, carefully lift and remove the manifold from the unit and store in a safe place.
C Remove the old desiccant cartridges and dispose in accordance with local regulations.
D Remove the o-ring from the outlet manifold block and replace with the one provided within the 12 month Preventative Maintenance kits.
Note: Apply a light coating of Molykote III grease to the o-rings.
E Insert the replacement desiccant cartridges into the columns.
F Refit the manifold and secure the M12 nuts in sequence, starting with the centre nuts and working outwards. The nuts should be secured in
two stages.
Stage 1: 27Nm (20 ft.lb) and Stage 2: 40Nm (30 ft.lb).
Ensure that the system is fully depressurised before carrying out the below maintenance procedures.
Ensure that the inlet and outlet piping is adequately supported before removing the manifold from the unit.
B A