Replace The Seal Wash Assembly Seals - Waters Alliance e2695 Operator's Manual

6. After you replace the seals, observe the Head Removal and Replacement screen.
7. Follow the on-screen instructions to reinsert the head, seal wash housing, washer, and
plunger assemblies.
Requirement:
with the seal wash housing, refer to
head alignment pin is properly oriented and that the "J" tube faces downward (see
"Plunger, seal wash, and head" on page
a. After finger tightening the head nut onto the head, loosen (turn counterclockwise) the
nut approximately 1/2-turn.
b. Inspect the ends of the seal wash tubes for damage.
Tip:
c. Reinsert the seal wash tubes into the manifold, and then fully tighten the head nut.
d. Return the release ring to the run position.
8. If the separations module does not have solvent in the lines, perform a dry prime to draw
solvent into the plunger cavity before you perform a wet prime or start delivery of solvents
(see "Prime the solvent management system" on page
7.5.4

Replace the seal wash assembly seals

For information about isolating problems in the solvent management system, see
This procedure involves replacing these parts:
• seal wash face seal
• Two tube seals
• Plunger wash seal
Required materials
• Seal insertion tool (start-up kit)
• Seal removal tool (part number WAT039803)
• Replacement seals
• Squirt bottle containing 100% alcohol (methanol or isopropanol)
• Syringe (start-up kit)
• Plastic tweezers
Notice: To avoid damaging the sealing surfaces, use the seal removal tool. Do not use a
sharp tool to remove or install seals.
To replace the seal wash assembly seals:
1. Remove the seal wash assembly (see
plunger" on page
2. Use the plastic end of the seal removal tool to remove the plunger wash seal from its
seat, repeating the procedure for each of the tube seals (see
seals" on page
3. Use the plastic tweezers to remove the seal wash face seal.
To avoid damaging the tube seals and to properly align the seal wash tubes
If necessary, trim the ends with a razor blade.
123).
127).
February 27, 2018, 715003794 Rev. C
step a through step d, below. Also, make sure that the
128).
58).
"Remove the head, seal wash assembly, and
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figure
Chapter 8.
figure "Seal wash assembly