Waters 1525EF, Installation And Maintenance Manual

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Troubleshooting Noises 84
5
5.2 Troubleshooting Noises
Table 5-2 is a guide to troubleshooting and correcting noises in the Waters 1525 Pump.
Table 5-2 Correcting Noises
Symptom Possible Cause Corrective Action
Click or loud snap Binding plunger seal If the click does not stop and
cannot be isolated to one
pump head, replace the
plunger seals, one at a time
(see
Section 4.3 or
Section 4.5 ).
Worn indicator rod spring Replace the spring.
Squeak Plunger seals dry Moisten the plunger with
appropriate eluent through
pump head access holes.
Binding plunger seal Replace the plunger seal
assembly (see
Section 4.3 or
Section 4.5 ).
Improper plunger seal Install the correct pump
plunger seal (see
Section 4.3
or Section 4.5 ).
Binding piston indicator rod Replace the indicator rod.