Dionex As - Liquid Leaks; Leaking Syringe or Syringe Valve Port

AS Autosampler Operator’s Manual
124 Doc. 065051-03 1/08
4.2 Liquid Leaks
4.2.1 Leaking Syringe or Syringe Valve Port
Possible Causes:
• Cracked syringe or leaking plunger seal
• Missing or worn Teflon® washer in the leaking valve port
• Loose syringe
Actions:
• Check for a crack or a leaking plunger seal in the syringe. Replace the
syringe, if necessary (see Section 5.12
).
• If the leak is from one of the valve ports, remove the valve and
syringe (see Section 5.12
). Remove the existing white Teflon washer
from inside the valve port and replace it with a new washer
(P/N 061315). The washers are supplied with the syringe valve and
with the
AS Preventive Maintenance Kit (P/N 060581). Reinstall the
syringe and valve.
• Make sure the syringe is
tightened. To tighten, hold the
syringe at the top and bottom
fittings and turn it clockwise (as
viewed from the top) (see
Figure 4-1
). Tighten fingertight
only; do not overtighten.
Figure 4-1. Tightening the Syringe