118 1100 Series Nano Pump Service Manual
3 Repairing the Pump
Exchanging the Solvent Selection Valve
1 Disconnect the solvent tubes and the active inlet valve connection tubes
from the solvent selection valves. Place solvent tubes into the solvent
cabinet to prevent leaks due to hydrostatic flow.
Frequency If internally leaking (crossfoot between the ports), or if one of the channels is
blocked
Tools required Screwdriver Pozidriv #1
Parts required Solvent selection valve (PN gives half of a complete solvent selection block)
G1312-60000
Figure 20 Exchanging the solvent selection valve
Connecting tubes
Solvent
selection
valve
Solvent tubes