Chapter 4: Maintenance 117
5 Remove the sample injection tubing (A) from the HTS.
• If necessary, disconnect the top hex screw (B) from the secondary pump
using the 5/16-in wrench in the accessory kit (Figure 4-5 on page 116
and Figure 4-6).
Figure 4-6 Hex screw on secondary pump
• Turn the sample injection port/wash station (C) slightly to disengage
the magnetic force, and then lift it up to expose the thumb screw (D) on
the sample injection tubing (A) and the thumb screw (E) on the
secondary pump valve tubing (F) (Figure 4-7).
Figure 4-7 Accessing the tubing
• Unscrew the thumb screw (E) from connector (G) and remove the
secondary pump valve tubing (F) (Figure 4-5 on page 116 and
Figure 4-7).
hex screw (B)
secondary pump
valve tubing (F)
secondary pump
thumb screw (D)
thumb screw (E)
connector (G)
sample injection port/
wash station (C)
sample injection tubing (A)
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