Agilent Technologies 1100 Series Service Manual page 160

3 Repairing the Pump
7 Disconnect the fan cable (P17) at the main board.
8 Remove the solvent selection valve. See "exchanging the solvent selection
9 Remove the CSM board. Disconnect the remaining connectors, see
10 Push the leak sensor cable through the recess of the solvent selection valve
11 Remove the power supply. For this:
12 Place the new power supply into the instrument and fix it with the two
13 Place the coupler onto the switch in the power supply and clip the light pipe
14 Slide the leak sensor cable through the bottom foam and fix the leak sensor
15 Re-install the CSM board. Reconnect all the cables.
16 Re-install the solvent selection valve.
17 Re-install the two pump head. Reconnect the capillaries and the cable.
18 Re-install the Z-panel and the damper. Reconnect the capillaries and
19 Re-install the mixing chamber to its holder.
20 Re-install the flow sensor. Reconnect the capillaries and the cable.
21 Re-install the EMPV. Reconnect the capillaries, the waste tube and the
22 Replace the top foam section, optional interface board, front cover, and top
148
valve" in this chapter.
"exchanging the high pressure pump main board in this chapter.
and lift out the bottom foam.
• loosen and remove the power-supply screws at the rear panel.
• unclip the power supply light pipe from the power supply and pull out
the coupler.
screws at the rear panel
back onto the coupler.
cable in the foam. Make sure the leak sensor cable is not damaged by the
sheet metal.
connectors. (P16, P11, P20)
cable.
cover (see "Replacing the Top Cover and Foam" on page 154).
1100 Series Nano Pump Service Manual