1100 Series Nano Pump Service Manual 107
Repairing the Pump 3
Overview about the Nano Pump
Figure 13 shows the main assemblies of the nano pump. The pump heads and
its parts do require normal maintenance (for example, seal exchange) and can
be accessed from the front (simple repairs). Replacing internal parts will
require removing the module from its stack and to open the top cover.
Figure 13 Overview of Repair Procedures
1Pumpdrive A 8Main Board
2 Damper 9 Power Supply
3EMPV 10Fan
4 Outlet Ball Valve A 11 Flow Sensor
5 Pumphead A 12 Pumphead B
6 Solvent Selection Valve 13 Active Inlet Valve B
7Leak Sensor
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