Waters 717plus - 5.4 Replacing In-Line Filters

Maintenance 140
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5. Connect the restrictor to the in-line filter.
6. Using the Torx T20 wrench, replace the two screws securing the injector safety
shield.
5.3.6 Calibrating the Seal Pak
The replacement seal pak must be calibrated after installation.
Seal pak calibration involves:
• Purging the autosampler
• Auto zeroing the transducer
• Calibrating the seal pak
For details, refer to Section 3.4,
Calibrating the Seal Pak.
5.4 Replacing In-Line Filters
Replace the in-line filters as needed when the source of high backpressure is the injector.
Tools required:
• Two 5/8-inch open end wrenches
• One 5/16-inch wrench
To replace the in-line filters:
1. Set pump flow rate to 0 mL/min.
2. Remove the autosampler cover and locate the in-line filters (Figure 5-9
).
Note: For procedures on removing the 717plus cover, see Section 2.6.1,
Removing/Replacing the 717plus Cover.
Caution: To avoid the possibility of pinched fingers, always replace the
injector safety shield after reinstalling the injector.
Caution: To avoid the possibility of electric shock, turn off the unit and disconnect the
power cord before performing the following procedures.
Caution: Wear safety glasses when performing this procedure.