1100 Series Nano Pump Service Manual 105
Repairing the Pump 3
Introduction
Simple Replacements
The nano pump is designed for easy repair. The most frequent repairs such as
plunger seal change and filter frit change can be done with the nano pump in
place in the system stack. These repairs are described in “Simple Repair
Procedures” on page 108.
Exchanging Internal Parts
Some repairs may require exchange of defective internal parts. Exchange of
these parts requires removing the nano pump from the stack, removing the
covers, and disassembling the nano pump. The security lever at the power
input socket prevents that the pump cover is taken off when line power is still
connected.
When opening capillary or tube fittings solvents may leak out. Please observe
appropriate safety procedures (for example, goggles, safety gloves and protective
clothing) as described in the material handling and safety data sheet supplied by the
solvent vendor, especially when toxic or hazardous solvents are used.
To prevent personal injury, the power cable must be removed from the nano pump
before opening the cover. Do not connect the power cable to the nano pump while
the covers are removed.
Electronic boards and components are sensitive to electrostatic discharge (ESD). In
order to prevent damage always use an ESD protection (for example, the ESD wrist
strap from the accessory kit) when handling electronic boards and components.
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