BRAND Liquid Handling Station Operator's Manual page 30

4. Remove the seal
4.1 Push the piston unit down to the bottom.
4.2 Remove the seal, inspect it and clean, or replace
it if necessary.
5. Mount the seal
5.1 If required, lubricate the piston with a very thin
coating of the supplied silicone.
5.2 Push the seal onto the piston with its flat side
facing upwards.
5.3 Use the mounting tool provided to tighten the
cleaned or new nose cones.
6. Connect the Liquid End
6.1 Reassemble the Liquid End, attach the lower ejector part, and check for leaks. For
testing, we recommend the BRAND PLT unit.
6.2 After checking for leaks, connect the Liquid End back to the motor control unit.
6.3 If the Liquid End is leaking, please contact the manufacturer's service department.
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After the nose cone is removed, the seal may either stay on the piston or remain
inside the nose cone.