Cleaning and maintenance
20901334_EN-US_PC3000 VARIO select Serie_V1.4_061022
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10. Carefully clean dirty sur-
faces.
11. Insert new sealing rings into
the notches.
12. Apply the new valves and
align them.
Top view detail: Correct positioning of
the valves.
IN = Inlet (Inlet)
EX = Exhaust (Outlet)
13. Place both valve clusters
with the cup springs onto
the pump heads.
14. Place the clamping brackets
on the valve clusters and
tighten the screw fasteners
by hand.